JP6168036B2 - Steel hardware and beam joints for steel structures - Google Patents

Description

  The present invention relates to a beam structure and a beam joint portion of a steel structure using H-shaped steel as a beam member, and in particular, reinforces the beam member without welding using the hardware, and combines the beams by combining the hardware. The present invention relates to a beam metal member of a steel structure and a beam joint portion that can be freely joined.

  For example, in medium- and low-rise lightweight steel structures composed of steel materials with a thickness of less than 6 mm, such as steel houses, H-beams are often used as beam members, and H-beams (beams) are used in beam-through frames. Column members are joined to the upper and lower flanges) to form a three-dimensional frame. In general, a portion where stress is increased, such as a beam-column joint or a joint between beams, has a reinforcing structure in which a stiffener is welded between upper and lower flanges of the beam. Generally, in the web portion, a through hole is provided in the stiffener and bolts are separately attached via a gusset plate, or the stiffener is extended and used as a bracket in the web portion.

  Since the stiffener is attached to the beam member by welding as described above, in addition to welding work with the beam member, it is difficult to rationalize, it is necessary to correct thermal strain caused by welding, flaw detection inspection of the welded part, etc. This is also a factor in increasing the manufacturing cost of beams.

  Further, the beam member is processed at the factory, and the beam member to which the stiffener is attached is manufactured at the factory. After the manufacture, coating or hot dip galvanizing (post-plating) is performed as a rust prevention treatment. For this reason, there is a problem that it is difficult to cope with design changes such as changing the attachment position (reinforcing position) of the stiffener after manufacture, and extension and renovation. In addition, when using pre-plated H-section steel to streamline the painting process and post-plating process, the coating and plating layer are damaged by the stiffener welding, requiring a separate repair process. is there.

  Therefore, there are techniques described in Patent Document 1, Patent Document 2, and the like as a technique that replaces the stiffener joined by welding. In both cases, the columns and beams are welded together by fixing and reinforcing them with bolts via hardware. Moreover, there exists a technique disclosed by patent document 3 regarding joining of beams. This welds the end plate to the end of the beam, welds or bolts the joint to the upper and lower flanges of the beam, and connects the beam and the beam by connecting the end plate and the bolt with the bolt. It is what you do. Furthermore, Patent Document 4 discloses a method of dividing a beam and arranging a metal object at a column beam joint.

JP 2004-11217 A JP 2005-320745 A JP-A-8-60739 JP-A-6-288005

  In addition to simple beam reinforcement (replacement of stiffeners), the beam-through frame has an L-shaped joint with two beams, a T-shaped joint with two beams, a T-shaped joint with three beams, and a cross shape with three beams There are joining forms such as joining. However, the techniques described in Patent Documents 1 and 2 are exclusively for buckling reinforcement of beams directly under a column. In order to join a plurality of beams directly under a column using this technique, another technique is required. Shaped hardware is required and it is difficult to rationalize the hardware. In the method described in Patent Document 3, since it is necessary to weld the end plate to the attachment beam, the problem relating to the welding still remains. Moreover, the example which has arrange | positioned the pillar as Example 2 of patent document 4 as a beam win is described. In this example, the beam flange and the web are not connected and reinforced, and the upper and lower beam flanges are not connected to each other. Therefore, the hardware of the beam portion has no resistance element against the tension of the beam flange. Therefore, even if this joint structure is applied to a joint having columns on the upper and lower floors, there is no deformation restraining effect on the beam flange. In terms of compression, there is a problem that the buckling strength of the beam web is insufficient because the metal web is not sufficiently stiffened.

  That is, in the prior art disclosed in these patent documents, there is a problem that the above-mentioned beam reinforcement and all the joint forms cannot be used universally while satisfying necessary performance.

  The present invention has been made in view of the above circumstances, and provides a beam metal fitting and a beam joint portion that can be used without welding for beam reinforcement and all joint forms in a beam-through frame of a steel structure. For the purpose.

The gist of the present invention for solving the above problems is as follows. Here, the winning side beam means a beam on the side where the web exists (that is, the other beam on the side surface) at the intersection of the beam cores of the joints of the beams in the beam-through frame of the steel structure. The losing side beam means a beam on the side where the web does not exist (that is, the side beam against which the fore edge side end surface is abutted).
[1] Steel structure used for reinforcing or joining beams made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height between the upper and lower flanges of h The first hardware for the beam,
The beam hardware consists of an upper plate, a lower plate, a first side plate, a second side plate, and a back plate. The width is (2 × dt), the depth is (2 × dt), and the height is less than h. The front plate is a substantially rectangular parallelepiped, and the upper plate and the lower plate are provided with one through hole at a position d from the front and d from the surface of the first side plate, the first side plate, The second side plate and the back plate are provided with a plurality of through holes in at least one row in the vertical direction, and the through holes provided in the first and second side plates are located at a position d from the front. The first metal fitting for a beam of a steel structure, wherein the through-hole provided in is a vertically symmetrical shape located at a position d from the surface of the first side plate.
[2] The first side plate of the first hardware for a beam according to [1] is provided with an extending portion in a front direction in which a plurality of through holes are provided in at least one row in the vertical direction, and the first side plate is extended. A second hardware for a beam of a steel structure, wherein the portion is shifted to the second side plate side by t.
[3] Either a winning side beam and a losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h are either of the web surfaces of the winning side beam It is a beam joint of a steel structure joined so that the losing side beam can be attached to one or both,
The first side plate of the first hardware described in [1] and the second hardware described in [2] are adjacent to each other on the side of the web surface to which the losing side beam of the winning side beam is attached, and the adjacent boundary thereof The first hardware and the second hardware are arranged so that the respective back plates come into contact with each other in a state in which the portion is aligned with the structural core of the losing side beam,
To the web surface of the winning side beam on which the losing side beam is not attached, the respective back plates are in contact with the first side plates of the two first hardware described in [1]. Place two first hardware,
Bolts and nuts that face each other across the win side beam web through the through hole provided in the back plate of the first hardware or the second hardware and the through hole provided in the web of the win side beam Fixed with
The second hardware and the losing side beam are bolted through the through hole provided in the extending portion of the first side plate of the second hardware and the through hole provided in the web at the tip of the losing side beam. A beam joint of a steel structure characterized by being fixed with a nut.
[4] Either a winning side beam and a losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h are either of the web surfaces of the winning side beam It is a beam joint of a steel structure joined so that the losing side beam can be attached to one or both,
The web surface on the side where the losing side beam of the winning side beam is mounted is in a state where the back plates of the two first hardwares described in [1] are opposed to each other so as to have a 2 × t gap, and the gap The first hardware is arranged so that the second side plate comes into contact with the position of the center side of the losing side beam as the structural core of the losing side beam,
The web surface on the side where the losing side beam of the winning side beam is not attached is arranged in a state where the back plates of the two first hardwares described in [1] are opposed to each other so as to have a gap of 2 × t. Two first hardwares are arranged so that the two side plates are in contact with each other, or so that the respective back plates are in contact with each other with the first side plates being adjacent to each other,
Bolts and nuts that face each other across the win side beam web through the through hole provided in the back plate of the first hardware or the second side plate and the through hole provided in the web of the win side beam Fixed with
The first hardware described in [1] is arranged so that the back plate abuts on both sides of the web at the tip of the losing side beam, and is provided on the back plate of these hardware and the web at the tip of the losing side beam. Fix the hardware that faces each other across the web of the losing beam with the bolts and nuts,
A first side plate of two first hardware fixed to a side to which a losing side beam of the winning side beam is attached, and a first side plate of two first hardware fixed to the tip of the losing side beam, or A beam joint of a steel structure, wherein the second side plate is fixed with bolts and nuts through respective through holes.
[5] Either a winning side beam or a losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h is any of the web surfaces of the winning side beam. It is a beam joint of a steel structure joined so that the losing side beam can be attached to one or both,
In a state where the back plates of the first hardware described in [1] are opposed to each other so as to have a gap of 2 × t on the web surface to which the losing side beam of the winning side beam is attached, Arrange the two first hardware so that the second side plate comes into contact with the center side of the core of the losing side beam.
In the state where the back plates of the two pieces of the first hardware described in [1] are opposed to each other so as to have a gap of 2 × t on the web surface on which the losing side beam of the winning side beam is not attached. Two first hardwares are arranged so that the side plates of each other come into contact with each other, or so that the respective back plates come into contact with each other with the first side plates adjacent to each other,
Further, between the two first hardwares arranged on the side where the losing side beam of the winning side beam is attached, the thickness is 2 × t and the length is longer than (2 × dt), and this long portion Place the bracket where (extension part) is shifted by 2 × t,
Bolts that connect the opposing hardware with the web of the winning side beam sandwiched between the through hole provided in the back plate or the second side plate of the first hardware and the through hole provided in the web of the winning side beam Fixed with nuts,
The bracket is bolted between the first hardware through the through hole provided in the back plate of the two first hardware and the bracket's through hole located on the side where the losing side beam is attached. Fixed with nuts,
The bracket and the losing side beam are fixed with bolts and nuts through the through hole provided in the extending portion of the bracket and the through hole provided in the web of the leading end portion of the losing side beam. Beam joint of steel structure.
[6] A pillar including a cross-shaped member having a cross-shaped cross section by combining plate elements at the tip of the pillar and a flat plate attached to the top and bottom of the cross-shaped member, and a through hole is provided in one of the upper and lower flat plates Welding hardware
[3] to [5] Provided in either or both of the upper and lower sides of the beam joint of the steel structure according to any one of [3] to [5], and in the flange of the beam joint and the flange of the beam joint A beam connecting part of a steel structure, wherein a column is fixed with a bolt and a nut through a formed through hole.
[7] The through-hole provided in either one of the upper and lower flat plates of the pillar hardware is provided at one place in each section partitioned by the cross-shaped member, and the distance between the centers thereof is 2 × d. The beam joint of a steel structure according to [6], wherein
[8] A beam joint of a steel structure according to [6] or [7], wherein a through-hole for attaching a vertical brace is provided in at least one plate element of the cross-shaped member of the pillar hardware. .
[9] The steel structure according to [8], wherein the plate element for attaching the vertical brace is provided with a protruding portion protruding from the upper and lower flat plates in plan view, and a through hole is provided in the protruding portion. Beam joint of objects.
[10] The first hardware 2 described in [1] on each surface of the web of the H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h Arrange the two first hardware so that each back plate abuts with the first side plates adjacent to each other,
The metal fittings facing each other across the web of the beam are fixed with bolts and nuts through the through hole provided in the back plate of the first hardware and the through hole provided in the web of the beam. Beam reinforcement for steel structures.

  In the present invention, a reinforcing member formed by appropriately combining two kinds of hardware and joining each other with bolts and nuts according to the reinforcement of the beam and all the joining forms of the beams is joined with the beam and the bolt. Therefore, the reinforcement of the beam member and the non-weld joint can be realized in all the joint forms of the beam-through frame.

  As a result, beam work correction and flaw detection inspections that accompany welding are no longer necessary, and even if pre-painted or pre-plated H-section steel is used, painting and plating repairs are not required after mounting the reinforcing member, reducing costs. Can do. In addition, design changes and expansion / reconstruction can be easily accommodated. Furthermore, since only two types of reinforcement hardware are required, the production of hardware can be streamlined, contributing to cost reduction.

It is sectional drawing of the H-section steel used for the beam of a steel frame structure. It is a perspective view of the 1st hardware concerning this embodiment. It is a figure which shows a 1st metal fitting, (a) is a front view, (b) is a horizontal sectional view, (c) is a vertical sectional view. It is a perspective view of the 2nd hardware concerning this embodiment. It is a figure which shows a 2nd metal fitting, (a) is a front view, (b) is a horizontal sectional view, (c) is a vertical sectional view. It is a horizontal sectional view showing joining form 1. It is a horizontal sectional view showing joining form 2. It is a horizontal sectional view showing joining form 3. It is a horizontal sectional view showing joining form 4. It is a horizontal sectional view showing joining form 5. It is a horizontal sectional view showing joining form 6. It is a figure which shows the metal fitting for pillars concerning this embodiment, (a) is a horizontal sectional view, (b) is a vertical sectional view. FIG. 10 is a vertical sectional view showing a bonding configuration 7; The modification of the pillar hardware is shown, (a) is a horizontal sectional view, (b) is a front view. The other modification of the pillar hardware is shown, (a) is a horizontal sectional view, (b) is a front view.

The object of the present invention is a lightweight steel structure of a beam-through frame. In the present invention, a standardized H-section steel is used for the beam, and as shown in FIG. 1, the flange width (mm) is 4 × d and the web thickness (mm) as shown in FIG. ) Is defined as 2 × t, and the distance between the upper and lower flanges (internal height) (mm) is defined as h.
In the present invention, the first hardware and the first hardware and the second hardware are combined and arranged between the upper and lower flanges of the beam to reinforce the beam (replacement of stiffeners) and all the beam connection forms. (L-shaped joint with two beams, T-shaped joint with two beams, T-shaped joint with three beams, and cross-shaped joint with three beams). Below, the hardware used here and a joining form are demonstrated as embodiment.

[First hardware]
The first hardware 10 will be described with reference to FIGS. 2 is a perspective view of the first hardware 10, and FIGS. 3A to 3C are a front view, a horizontal sectional view (a sectional view taken along the line XX in FIG. 3A), and a vertical sectional view, respectively. It is a YY arrow sectional view of Drawing 3 (a). The first hardware 10 is a substantially rectangular parallelepiped whose one surface is open. The upper and lower surfaces are each composed of a flat plate having one through-hole, and one of the four side surfaces (the front side in the figure) is opened, and the remaining three surfaces are arranged in a row in the vertical direction. It is composed of a flat plate having at least two through holes and has a vertically symmetrical shape. Hereinafter, the upper flat plate is referred to as the upper plate 11, the lower flat plate is referred to as the lower plate 12, and the side flat plate is referred to as the side plate. Further, in the front view 3A as viewed from the open side, the right side plate is the first side plate 13, the left side plate is the second side plate 14, and the first side plate 13 and the second side plate 14 are between them. The side plate facing the open surface is called a back plate 15.

  The height of the first hardware is set to be equal to or less than the inner height h of the beam so that it can be disposed between the beam flanges. Desirably, the dimensions are the same as the inner height h, and more desirably, a negative tolerance of 0.5 to 1.0 mm is expected in consideration of errors. The hardware is made of steel, and its thickness and strength may be appropriately selected as required for structural design. However, the thickness of the upper and lower plates is equal to or greater than the thickness of the side and back plates and the beam flange. In view of strength, the thickness of the side plate and the back plate is preferably equal to or greater than the thickness of the beam web.

  As shown in FIG. 2, the width and depth dimensions of the first hardware are both (2 × dt) in front view.

  Further, the through holes 16a and 16b of the upper plate and the lower plate are provided at positions d from the outer surface of the first side plate and (dt) from the outer surface of the back plate in the width direction of the first hardware. The through holes 16c of the first side plate and the through holes 16d of the second side plate are basically arranged in a vertically symmetrical manner at a position (dt) from the outer surface of the back plate, and at least from the upper and lower surfaces. There are two places symmetrically in the vertical direction at a height position of approximately 1 / 4h, preferably a total of three places including a height position of 1 / 2h. However, the through hole is not limited to this and takes into consideration the design conditions. You may increase it further. Further, the through holes 16e in the back plate are provided in a row at a position d from the outer surface of the first side plate in the width direction of the first hardware, but the number of holes and the position in the height direction are provided. Is aligned with the through holes 16c and 16d. These through holes are used to pass the bolts for joining.

[Second hardware]
Next, the second hardware 20 will be described with reference to FIGS. The second hardware 20 is obtained by changing a part of the first hardware in order to be used for joining with the web of the losing side beam. The first side plate is used as a bracket for joining with the losing side beam. It has the form which has the extension part made to protrude in. FIG. 4 is a perspective view of the second hardware, and FIGS. 5A to 5C are a front view of the second hardware, a horizontal sectional view (a cross-sectional view taken along the line XX in FIG. 5A), FIG. 6 is a vertical cross-sectional view (a cross-sectional view taken along the line YY in FIG. 5A). Hereinafter, the upper flat plate is the upper plate 21, the lower flat plate is the lower plate 22, the right side plate is the first side plate 23, the left side plate is the second side plate 24 in FIG. The side plate between the first side plate 23 and the second side plate 24 is referred to as a back plate 25. The upper plate, the lower plate, and the side plate are provided with through holes 26a to 26e. The first side plate 23 extends so as to protrude to the front side of the second hardware, and the extending portion 23a is eccentrically positioned on the inner side (the second side plate 24 side) by t. It is processed as follows. The length of the extending portion may be a length required in the design in consideration of the relationship with the beam attached orthogonally. The extending portion 23a is provided with at least one or more through holes 26f (three in the illustrated example) that are joined to the web of the losing side beam. The position of the through hole 26f may be determined from the viewpoint of design, and is not limited to one row and may be two or more rows.
About another structure, since it is the same as the 1st metal fitting 10, description is abbreviate | omitted.

[Combination form of hardware]
In the present invention, the first hardware and the first hardware and the second hardware are combined and arranged between the upper and lower flanges of the beam, so that the beam is reinforced and all beam connection forms (L-shaped connection) are provided. , T-type bonding, and cross-type bonding). Here, when combining the first hardware and the two hardware of the first hardware and the second hardware, one hardware is used upside down from the state shown in FIGS. . In this case, the first side plate 13 or 23 is on the left side, and the second side plate 14 or 24 is on the right side. Although the upper plate is on the lower side and the upper plate is on the lower side, for convenience of explanation, the upper side will be referred to as the upper plate and the lower side will be referred to as the lower plate even when upside down.

[Join method of beam]
According to the present invention, both a bracket method and a butt method can be used as a beam joining method. In addition, the bracket system said here means the form which carries out the shearing connection of the web of a losing side beam to the extension part of a 2nd metal fitting, or the bracket 40 of FIG. As shown in FIG. 10, the first hardware is attached to the beams to be joined, and they are abutted and pulled by bolts and nuts (FIGS. 10 and 11 will be described later).

[Joint form]
In the present invention, the beams are joined using bolts and nuts instead of welding as described above. If the metal side plate and back plate are thick, female screws may be formed in the through holes 16c to 16e and the through holes 26c to 26e instead of the through bolts, and the bolts may be screwed in. This form is preferably used for the case where the number of through holes in the vertical direction is an even number. At this time, when female threads are cut into all the through holes, screwing becomes impossible. For the through hole, one is a female screw, the other is a female screw, and the other is a through hole that forms a female screw and a non-female through hole. For example, the uppermost through hole has a female screw. It is good to arrange appropriately, such as arranging alternately in the vertical direction so that it is formed and not formed in the next through hole.

Hereinafter, joining modes 1 to 7 using the first hardware 10 and the second hardware 20 as beam joints will be described.
[Joint Form 1]
A case will be described in which the first hardware 10 and the second hardware 20 are combined and two beams are joined to the L shape by a bracket method in a plan view (bracket-type L-joint configuration). FIG. 6 is a horizontal cross-sectional view showing a state in which two beams are joined in an L shape using three first metal objects 10 and one second metal object 20. 6, 60 wins side beam 70 is lost side _beam, 10 _1, 10 2, 10 ₃ the first hardware, the 20 ₁ is the second hardware.

At the joint of the beam, each of the upper and lower flanges of the winning side beam 60 is separated from the core of the beam web by a distance of d on the upper and lower plates of the four hardware 10 ₁ to 10 ₃ and 20 _1. Four through holes 60a each corresponding to the provided through holes 16a, 16b, 26a, 26b are provided.

Even web 61 wins side beam 60, the four fittings ₁₀ 1 _{to 10} 3, 20 ₁ of a vertical column provided on the back plate of the through hole 16e, a through hole 60b corresponding to 26e are provided. The through hole 70c corresponding to the through hole 26f provided in the second extending portion of the hardware 20 ₁ to the web 71 of the losing side beam 70 is provided.

A first first side plate 13 of metallic material 10 ₁ is adjacent the first first side plate 13 of the hardware 10 _2, these back, on the side losing side beam 70 of the winning side beam web 61 is not possessed It arrange | positions so that it may contact | abut to a surface. Similarly, the first first side plate 13 of the fittings 10 ₃ are adjacent the second first side plate 23 of metallic material 20 _1, these back, losing side beam 70 of the winning side beam web 61 attaches It arrange | positions so that it may contact | abut to the surface of the side. Here, the through holes 60a of the upper and lower flanges of the winning side beam and the through holes 60b provided in the web are arranged at positions d on both sides of the core of the web 71 of the losing side beam. By aligning the positions of the through holes, the boundary surface between adjacent hardware is positioned at the core of the web 71 of the losing side beam 70.

Then, the first hardware 10 ₁ and 10 _3, the first hardware 10 ₂ and the second metallic material 20 _1, the through hole 16e of the back plate, the 26e, a through hole 60b provided in the web 61 of the winning side beam And is fixed to the winning side beam 60 with bolts and nuts (not shown; hereinafter the same). In this case, the the hardware 10 ₁ and 10 ₂ and 10 ₃ that adjoin 20 _1, connected by bolts and nuts through the holes 16c, 26c of the side plates in contact with each other and upper and lower flanges of the winning side beam 60 and the hardware It is more preferable in terms of strength if the upper plate and the lower plate are fastened with bolts and nuts through corresponding through holes. Then, in the second first hardware 20 ₁ of the side plate (thereby functioning in brackets) 23 extending portion 23a and the negative and a web 71 of side beams 70 each through-hole 26f and 70c of the bolts and nuts through the Fix it. At this time, since the joint surface of the extending portion 23a is disposed at a position shifted by t (1/2 of the web thickness) from the core of the losing side beam 70, the losing side beam web 71 is brought into contact with the position. Thus, the losing side beam 70 can be fixed at a predetermined position.

Above, the first hardware 10 ₁ and the combination of the first hardware 10 _2, the first hardware 10 ₃ a second combination of hardware 20 _1, using the respective one side of the web 61 of the winning side beam showed how to install the one losing side beam 70, the first hardware 10 ₁ and the first combination of hardware 10 _2, it is arranged on both sides of the winning side beam web 61, defeated side beam 70 The stiffener substitute reinforcement can be configured.

[Joint Form 2]
This joining form joins two beams to a T type by a bracket method in a plan view (bracket type T type joining form). As shown in FIG. 7, the winning side beam 60 is extended, Since it is the same as the joining form 1, description is abbreviate | omitted.

[Joint Form 3]
This joining form is one in which three beams are joined to a T-shape by a bracket method in a plan view (second bracket-type T-joining form) and will be described with reference to FIG. Three beams are arranged in a T-shape, and these are joined using two first hardware 10 and two second hardware 20. In the longitudinal end portion of the winning side beam 60, two losing side beams 70 are attached to both sides of the web 61, respectively.

At the joint of the beams, the upper and lower plates of the four hardware 10 ₁ , 10 ₂ , 20 ₁ , and 20 ₂ are positioned on the upper and lower flanges of the winning side beam 60 at positions separated from the core of each beam web by d. Four through holes 60a each corresponding to the through holes 16a, 16b, 26a, 26b provided in the plate are provided. Wins side hardware ₁₀ 1 4 to the web 61 of the _beam, 10 _{2, 20} 1, 20 ₂ of the through hole 16c of the vertical column provided on the back plate, the through-hole 60b is provided in a position corresponding to 26c ing. The through hole 70c corresponding to the through hole 26f of the vertical column provided at the tip portion of the hardware ₂₀ 1 also in the second to the web 71, 20 ₂ of the extending portion 23a of the losing side beam 70 are respectively provided ing.

At the distal end of the winning side beam 60, the first of the first side plate 13 of metallic material 10 ₁ is adjacent the second first side plate 23 of metallic material 20 _1, these back, the winning side beam of the web 61 It arrange | positions so that it may contact | abut on one surface. Similarly, the first first side plate 13 of the hardware 10 ₂ are adjacent the second first side plate 23 of the hardware 20 _2, these back, those on the other side of the web 61 of the winning side beam Arrange to touch. Here, the surface where the adjacent hardware contacts is positioned at the core of the web 71 of the losing side beam.

Then, the first hardware 10 ₁ and 10 ₂ are fixed to the winning side beam 60 with bolts and nuts through holes 60b provided in the through hole 16e and the winning side beam 60 web of each back plate. Similarly, the second hardware 20 ₁ and 20 ₂ is also fixed to the winning side beam 60 with bolts and nuts through the through-hole 60b formed in the through hole 26e and the winning side beam 60 web of each back plate. At this time, the through-hole 16c of the side plate in contact _one with the adjacent fittings 10 20 ₁ and 10 ₂ and 20 ₂ to each other, connected by bolts and nuts through 26c, also wins side beam 60 upper and lower flanges and the fittings It is more preferable in terms of strength if the upper plate and the lower plate are tightened with bolts and nuts through corresponding through holes. Then, the second hardware ₂₀ 1, 20 ₂ of the extending portion 23a is lost side beam 70 has become a bracket for joining, each extending portion 23a and the negative side beam web 71 and the respective through-hole 26f, Fix with bolts and nuts via 70c. At this time, each extending portion 23a is disposed at a position shifted from the core of the losing side beam 70 by t (1/2 of the web thickness) at the position where the joining surface with the web 71 of the losing side beam is located. The losing side beam 70 can be fixed at a predetermined position by contacting and joining the losing side beam web 71.

In the present bonding form, via the web 61, the back surface of the first metallic material 10 _1, the first hardware 10 ₂ Another is on the back of the second hardware 20 _1, the other second showed forms of arranging the second hardware 20 _2, orientation of the hardware is arbitrary, interchanged position, second the hardware 20 ₂ to the back of the first hardware 10 _1, the second hardware 20 on the back of ₁ may be located a first hardware 10 _2.

[Joint Form 4]
This joining form is a joining of three beams in a cross shape by a bracket method in a plan view (bracket type cruciform joining form), as shown in FIG. 9, except that the winning side beam 60 is extended, Since it is the same as the bonding mode 3, the description is omitted.

The bonding modes 1 to 4 for the bracket method have been described above. The second bonding surface of the orientation of bracket hardware 20 disposed on both sides of the web 61 of the winning side beams, a case of arranging the other second the hardware 20 ₂ of the rear surface of the second hardware 20 ₁ differs between the case of disposing the first hardware 10 ₁ on the back of the second hardware 20 _1. With respect to the bracket placement direction of the second hardware 20, if the bracket placement direction is not aligned at both ends of the losing side beam, the beam cannot be attached in one direction, and it takes a lot of work, so two beams are attached. In the case of joining modes 1 and 2 as well, it is preferable to unify the arrangement of hardware at each beam joint on at least one horizontal surface. Most preferably, it is a method of unifying the whole in the direction in which the second hardware 20 is arranged on the back surface of the second hardware 20, and specifically, a corner portion serving as a reference of the entire frame is determined. After setting the position as the origin of the xy coordinates (horizontal plane coordinates), the arrangement is unified so that the first hardware or the second hardware comes to the origin on both the x-axis and the y-axis at each beam joint. As a result, the direction of the contact surface of the losing side beam 70 with the bracket 23a is unified, and the attachment of the beam is managed in one direction, and management on the site becomes easy.

[Joint Form 5]
Next, the joining form (butting type T type joining form) which joins two beams to a T type | mold by a pushing system by planar view is demonstrated using FIG. Two beams are arranged in a T shape, and these are joined using six first hardwares 10. In FIG. 10, the description of the hardware and the through hole in the direction in which the losing side beam 70 is not attached is omitted.

Regarding the hardware arrangement of the winning side beam 60, in the bonding modes 1 to 4, the back plate 15 of the first hardware and the back plate 25 of the second hardware are placed in contact with the web 61 of the winning side beam. here, the first hardware 10 ₁ and 10 ₂ are opposed with an interval of the back plate 15 2 × t (web thickness), each of the second side plate 14 abuts the web 61 of the winning side beam Arrange so that. Although the joint arrangements 1 to 4 and the arrangement method of the hardware are different, the arrangement of the through holes with respect to the winning side beam 60 is the same as that of the joining forms 1 to 4. Four through holes 60a are provided at positions d apart from the core, and the web 61 has through holes 60b at positions corresponding to the through holes 16d provided in the side plate 14 of the first hardware. Is provided. That is, the position of the web through hole 60b is a distance d from the core of the web 71 of the losing side beam, and the height direction is the same as the through holes 16c, 16d, and 16e of the first metal side plate and the back plate. It is arranged to be at the height.

In FIG. 10, illustration of a portion to which the losing side beam 70 is not attached is omitted, but the first hardware 10 ₃ , 10 _{4 (} not shown) is similarly arranged on the opposite side of the web 61. At this time, instead of making the back plates 15 face each other, the first side plates 13 may be made adjacent to each other as shown in FIG.

In addition, at the leading end of the losing side beam 70, the first hardware is attached to both surfaces of the web 71 at the leading end of the losing side beam 70 in the same manner as the attachment form to the winning side beam 60 of the joining modes 1-4. The first hardware 10 ₅ and 10 ₆ are arranged so that the respective back plates 15 come into contact with the surface of the web 71. At this time, two through holes 70 a are provided in the upper and lower flanges at positions away from the core of the web 71 by d and from the tip of the losing side beam 70, respectively. The web 71 is provided with a through hole 70b corresponding to the through hole 16e of the back plate 15 in the arrangement state of the first hardware 10 with respect to the through hole 70a of the beam flange.

  Here, the positions of the through holes 70a and 70b provided in the losing side beam have been described as the position of d from the tip here, but may be set to (dt) from the tip by reversing the top and bottom of the hardware. .

First hardware 10 ₁ and not shown first hardware 10 ₃ wins side beam 60, and the first and the first hardware ₁₀₄ not shown and hardware 10 _2, through the web 61 of each winning side beam holes 16d, is fixed by bolts and nuts through 60b, the first hardware 10 ₅ and 10 ₆ of the losing side beam 70, the web 71 of the losing side beam with bolts and nuts through the through hole 16e, 70b fixed To do. Then, the side plate 14 in the case of winning side beams hardware 10 ₁ and 10 ₂ of the side plate 13 and the negative side beams hardware 10 ₅ and 10 ₆ side plate 13 (the through hole 70a of the position of 70b from the tip (d-t) ) With the through-holes 16c of each side plate facing each other (16c and 16d when the positions of the through-holes 70a and 70b are (dt) from the tip) are opposed to each other, and tightened with nuts through bolts to these through-holes As a result, the beams 60 and 70 are joined. Moreover, in this joining form, although the front-end | tip of the losing side beam 70 and the side surface of a metal object correspond, it adjusts the position of the through-hole provided in the web front-end | tip part so that a metal object may protrude from the front-end | tip of a losing side beam. It may be.

  As described above, the form in which the two H-shaped steel beams are joined in the T shape by the butting method has been described, but the form in which the two H-shaped steel beams are joined in the L shape is exactly the same. In the form in which three H-shaped steels are joined in a T-shape or the form in which three H-shaped steel beams are joined in a cross shape, the attachment part of the losing side beam 70 is connected to the web 61 of the winning side beam. By providing it on both sides (for the part not shown, the part shown in the figure is developed), it is possible to configure in the same manner as in this form of joining. Furthermore, it goes without saying that the losing side beam 70 may be used as a stiffener alternative reinforcing portion without joining.

[Joint Form 6]
This form of joining is a form (third bracket type T-shaped joining form) in which two beams are joined to a T-type by a bracket method in a plan view of the first hardware. This is a modification of the joint form 5, and the through holes provided in the beam are the same. Hereinafter, a description will be given with reference to FIG. In addition, like the bonding form 5, in FIG. 11, the description of the hardware and the through hole in the direction in which the losing side beam 70 is not attached is omitted.

As mentioned in bonding the fifth, the first hardware 10 ₁ and 10 ₂ of the back plates attached to winning side beam 60 there is a gap corresponding to the beam web thickness 2 × t. A bracket 40 having a thickness of 2 × t is disposed in the gap. The bracket 40 has a shape similar to that of the first side plate 23 of the second hardware 20 and has an extending portion that protrudes to the front side from the range sandwiched between the gap portions. The extending portion is 2 × It is bent so as to be shifted in parallel by t. The external dimension of the bracket 40 may be the same as that of the first side plate 23, or a member provided for the first side plate 23 may be used independently. However, the height of the sandwiched range is less than h of the side beam 60. If the height of the extending portion is set to be equal to or less than h of the losing side beam 70, an arbitrary form is possible, and the losing side beam 70 can be a beam having a small length.

The bracket 40 is provided with a through hole 40a corresponding to the through hole 16e of the back plate 15 of the first hardware. For example, 3 × 1 row of through holes 40b are also provided in the extending portion. Then, the two fittings 10 ₁ and 10 ₂ and the bracket 40, they are not shown with the first hardware 10 ₁ fastened with nuts through the bolt into the through hole 16e, 40a so as to be integrated, wins side beam 60 The first hardware 10 ₃ , the first hardware 10 _2, and the first hardware 10 _{4 (} not shown) are respectively connected to the surfaces on the side where the losing side beam 70 of the winning side beam 61 is attached, through holes 16 d and 60 b. For the losing side beam 70, the extension part of the bracket 40 and the web 71 of the losing side beam are connected to the losing side beam 70 using the through holes 40 b and 70 c provided therein. Fix it.

  In the above, since the bracket 40 is bent in the middle of the plate so as to shift by 2 × t, the losing side beam is arranged at a predetermined position by contacting the web 71. Alternatively, the gusset plate may be used as it is without being bent.

  As described above, the form in which two beams using the first hardware 10 and the separate bracket 40 are joined in a T shape has been described, but the form in which the two beams are joined in an L shape is completely the same. In the form in which the three beams are joined in a T shape or the form in which the three beams are joined in a cross shape, the attachment portions of the losing side beam 70 are provided on both sides of the web 61 of the winning side beam (illustrated). For the part that is not to be developed, the illustrated part can be developed), so that it can be configured in the same manner as the main joining mode.

  In the above-described joining modes 1 to 4 (FIGS. 6 to 9), a bracket-type beam joint is obtained by combining the first hardware and the second hardware, but if the bracket 40 according to this joining mode is prepared separately. The second hardware can be substituted, and the L-shaped, T-shaped, or cross-shaped joining can be performed using only the first hardware.

[Joint Form 7]
Up to now, the joint part where the beams are joined has been described. Hereinafter, the joint form in which the column is further attached to the beam joint part of the joint forms 1 to 6 (including the beam reinforcing part when the beam is not attached) will be described. To do. Here, the bracket type T-type joining configuration described in the joining configuration 2 (see FIG. 7) will be described as an example.

  FIG. 12 shows the post hardware used in this joining mode. 12A is a horizontal cross-sectional view (a cross-sectional view taken along the line YY in FIG. 12B), and FIG. 12B is a vertical cross-sectional view (a cross-sectional view taken along the line XX in FIG. 12A). is there. The pillar hardware 50 is made of steel, and is composed of a member 53 (hereinafter referred to as a cross-shaped member) having a cross-shaped cross section by combining plate elements (flat plates), and flat plates 51 and 52 attached to the top and bottom thereof. The one flat plate 52 is provided with four through holes 54. It is desirable that the cross-shaped member 53 be positioned within the range of the flat plates 51 and 52 in plan view and not protrude from the flat plate, and the thickness is determined by the structural design. The height is determined in consideration of workability. The shapes of the flat plates 51 and 52 are not particularly defined as being not less than the outer dimensions of the columns and not more than the inner dimensions of the walls. Thickness is determined by structural design.

  Each through hole 54 is at a distance d from the center line of the column, and the distance between the centers of adjacent through holes 54 is 2 × d. The column hardware 50 can be used for both the head and the column base by turning upside down, and the flat plate 51 is welded to the upper and lower ends of the column.

FIG. 13 shows a vertical sectional view when columns are joined to the upper and lower sides of the beam joint. The Joints of the winning side beam 60, the first metallic material ₁₀ 1 to 10 ₃ is the second hardware 20 ₁ are arranged, wherein the first hardware 10 ₁ and 10 ₂ adjacent, The direction in which the losing side beam 70 is not attached is shown.

  A column hardware 50 is previously welded to the tips of the upper column 80a and the lower column 80b to be joined to the beam junction. This welding is performed between the columnar metal 50 and the flat plate 51 having no through hole. The through holes 54 of the column hardware 50 have the same arrangement as the through holes 60a provided in the flange of the winning side beam 60. The through holes 60a of the beam flange and the through holes 54 of the column hardware are combined, The columns can be joined by inserting bolts into the through holes and fixing them with nuts. This joining is preferably a tensile joining using a high tension bolt. Further, a female screw may be cut in the through hole 54 of the pillar hardware, and a bolt may be screwed into this.

  Thereby, since the tensile stress of the upper column 80a is transmitted to the lower column 80b via the bolt and the first hardware 10, it is possible to appropriately transmit the stress without deforming only the upper flange of the beam. . Further, the compressive stress of the upper column 80a is transmitted from the metal flat plate 52 to the lower column 80b via the upper flange of the beam, the first hardware 10, the lower flange of the beam, and the metal flat plate 52, and the beam web 61 is There is no local buckling.

  In addition, although the above demonstrated the case where a column was joined to the upper and lower sides of a beam, you may make it join a column to either one of the upper and lower sides.

  Next, a modified example of this bonding mode will be described. In this modification, a through-hole is formed in a cross-shaped member of a pillar hardware, and a vertical brace is attached using this through-hole. As described above, it is most desirable that the cross-shaped member 53 be within the range of the flat plates 51 and 52. However, when the cross-shaped member 53 interferes with a fixing bolt with the beam, the brace core is used as the beam core (more specifically, the height of the beam). 14, in the column hardware 50, one of the plate elements 53a of the cross-shaped member 53 is extended as shown in FIG. Further, it may be projected from the flat plates 51 and 52 in a plan view, and a through hole 53b may be provided in the protruding portion (extending portion). Similarly to the one shown in FIG. 12, by making this pillar hardware as the head or pillar of the pillar 80 at the beam joint, it is possible to easily attach a turnbuckle brace or the like to the through hole 53 b, and Since the beam core and the brace core (extension line in the longitudinal direction) can be matched, it is preferable in terms of structure.

  FIG. 15 shows another modification. In this example, a separately prepared brace bracket 55 is attached to a pillar hardware without extending the plate element 53a. The brace bracket 55 is provided with through holes 55a for attaching vertical braces and through holes 55b and 55b for fixing to the plate element 53a, and the plate element 53a is provided with through holes 53b and 53b. In addition, the bracket 55 can be fixed to the pillar hardware 50 with bolts and nuts through these through holes, and a turnbuckle brace or the like can be easily attached. In this example, since the brace bracket 55 is used, there is no need to provide an extending portion on the cross-shaped member as in the example of FIG. 14, and versatility can be improved. The bracket 55 may be attached by welding.

  In FIGS. 14 and 15, only one direction of the cross-shaped member 53 is projected. However, it is also possible to project in two directions, three directions, or four directions and attach a brace to these as required. Alternatively, versatility can be enhanced by projecting in all four directions and attaching braces only in the desired direction. In the case where the brace can be attached to the plate element as it is without extending the plate element or adding the plate, it is only necessary to provide the brace through-hole in the plate element.

  As described above, the beam is joined in a form in which two beams are joined in an L shape, a form in which two or three beams are joined in a T shape, and a cross shape in which three beams are joined. In addition, each has a bracket method and a butting method. In the bracket system, the first side plates are arranged adjacent to each other for the reinforcement of the part where the losing side beam of the winning side beam is not attached, and the first side plate is adjacent to the part where the beam is attached. By arranging the first hardware and the second hardware adjacent to each other, the reinforcing side and the losing side beam can be joined. In the butting method, the beam can be reinforced and joined only by combining the first hardware. Moreover, if the pillar hardware according to the present embodiment is used, the column beam joint can be constructed with the same hardware. If a bracket is prepared separately, only the first hardware can be used for the gusset system or the bracket system, and if the shape of the pillar hardware is devised, a vertical brace can be attached. Further, for the purpose of reinforcement only, four first hardware can be arranged in a portion where the beam is not attached.

  Furthermore, since the upper and lower surfaces of the first or second hardware are fastened with the beam flange and bolts, and the upper and lower surfaces of the hardware reinforce the beam flange, for example, deformation of the beam flange can be greatly suppressed even if a tensile force is applied. Further, since the hardware is fixed to the web and reinforces the web, the buckling of the web is greatly suppressed. That is, by using the hardware of the present embodiment, the upper and lower flanges of the beam and the web are restrained, and a decrease in yield strength due to local deformation can be suppressed. Furthermore, by using the hardware of the present embodiment for the beam joint portion, the web of the winning side beam and the flange of the losing side beam opposite to the web are fixed with the hardware, so that the reinforcing effect is further enhanced.

First, the H-section steel, the first hardware, and the second hardware used in this example will be described, and then an example in which these are combined to form a beam joint will be described. In addition, unless the summary of this invention is exceeded, this invention is not limited to a following example.
<H-section steel>
The H-section steel used for the beam of the lightweight steel structure beam-through frame is all H-250 × 100 × 3.2 × 4.5 by standardization. As shown in FIG. 1, when the flange width of the H-shaped steel is defined as 4 × d, the web plate thickness is defined as 2 × t, and the inner height of the upper and lower flanges is defined as h, d = 25 mm, t = 1.6 mm, h = 241 mm.

<First hardware>
As the first hardware shown in FIGS. 2 and 3, a metal having a design dimension of width: 48.4 mm, depth: 48.4 mm, and height: 241 mm was produced. The width and depth dimensions were calculated from (2 × dt), and the height was the inner height h of the H-section steel. The accuracy control during production was ± 0.5 mm, but the height was controlled at plus zero and minus 1 mm in consideration of dimensional errors between the upper and lower flanges of the beam.

  The upper plate and the lower plate of the metal are manufactured from a steel plate having a thickness of 9 mm, and a steel plate having a thickness of 3.2 mm is formed into a U-shape by press working, and the first side plate, the back plate, and the second plate are formed. Side plates were used, and these plates were welded to form a first hardware. As shown in FIGS. 2 and 3, the hardware is provided with through holes, and the positions and the number of the through holes are as shown in the figure. The height direction positions of the through holes provided in the first and second side plates and the back plate are 1/4 h in the vertical direction, the upper through hole is 60 mm from the upper surface, and the lower through hole is the lower surface. To 60 mm. The diameter of the through hole was equivalent to M16 on the upper and lower surfaces, and equivalent to M10 for the others.

<Second hardware>
The second hardware is the same as the first hardware except for the first side plate of the first hardware (see FIG. 4). An upper plate and a lower plate of a metal piece are manufactured from a steel plate having a thickness of 9 mm, and a steel plate having a thickness of 3.2 mm is formed into a U-shape by press working, and the first side plate, the back plate, and the second plate are formed. A side plate was used. In molding, the first side plate is made 50 mm longer than the second side plate to provide an extended portion, and this extended portion is bent so as to be located on the inner side (second side plate side) by t = 1.6 mm. Added. Thereafter, these plates were welded to form a second hardware. The hardware is provided with a through-hole having the same size and position as the first hardware, and the extension part is at a position 25 mm from the tip, and two in the same position as each side plate in the height direction, A total of three through-holes corresponding to M16 were provided at an intermediate position in the height direction.

<Beam through-hole>
The beam was provided with a through hole corresponding to the through hole of the hardware to be arranged. On the upper and lower flanges of the winning side beam, through holes having a diameter equivalent to M16 were provided at a position d = 25 mm away from the beam center (web core) at two locations on both sides across the web, for a total of four locations. The interval between the through holes of the flange on one side was 2 × d = 50 mm, and the center line thereof was made to coincide with the center line of the beam to be attached. The web of the winning side beam was provided with two rows of through-holes having a diameter of M10 at 50 mm intervals at a total of two locations, a position 60 mm away from the lower surface of the upper flange and a position 60 mm away from the upper surface of the lower flange.

  The web of the losing side beam has a diameter of 25 mm from the tip of the tip part that is attached to the winning side beam, and a diameter of 60 mm, 120.5 mm, and 181 mm from the lower surface of the upper flange (60 mm from the upper surface of the lower flange). Provided a total of three through-holes corresponding to M16.

<Beam joint>
As described in "Mode for Carrying Out the Invention", the beam bonding mode includes a mode in which two beams are bonded in an L shape, a mode in which two or three beams are bonded in a T shape, and There are forms in which three beams are joined in a cross shape, and each has a bracket method and a butting method. Hereinafter, some examples in which a beam joint is constructed using the above H-shaped steel and the first and second hardwares will be described.

Example 1) An example of joining two beams to a T-shaped bracket (see Fig. 7)
The first side plates of the first hardware and the second hardware are adjacent to each other, and the back plates of the hardware are brought into contact with the web surface of the winning beam where the losing beam is attached, The first side plates of two pieces of one piece of hardware were placed adjacent to each other, and the back plate of these pieces of hardware was brought into contact with the other web surface of the winning beam. Next, the hardware on both sides of the web was fastened with M10 bolts and nuts through the metal and web through-holes, and the adjacent hardware was fastened with M10 bolts and nuts through the through-holes in the side plate. Then, the upper plate and upper flange of the hardware, and the lower plate and lower flange are fastened with M16 bolts and nuts through the through holes, and then the extension portion of the second hardware and the web of the losing side beam are connected to the through holes. And was tightened with M16 bolts and nuts. As a result, the losing side beam could be joined to the winning side beam at a predetermined position without welding. The same applies to L-type bonding.

Example 2) An example of joining three beams in a cross shape using the bracket method (see Fig. 9)
The first side plates of the first hardware and the second hardware are adjacent to each other, and the back plate of the hardware is won and the through hole of the hardware and the through hole of the web are aligned with one side of the web of the side beam. They were placed in contact with each other in the same manner on the other surface. Next, the hardware on both sides of the web was fastened with M10 bolts and nuts through the metal and web through-holes, and the adjacent hardware was fastened with M10 bolts and nuts through the through-holes in the side plate. Then, the upper plate and upper flange of the hardware, and the lower plate and lower flange are fastened with M16 bolts and nuts through the through holes, and then the second metal extension and the losing side of the two losing beams The beam web was fastened with M16 bolts and nuts through the through holes. As a result, the losing side beam could be joined to the winning side beam at a predetermined position without welding. In addition, it was possible to carry out the T-type joining without any problem.

Example 3) An example of joining two beams to a T-shape using the butting method (see Fig. 10)
Here, in order to increase the bonding strength, all the through holes of the hardware and the beam were unified to M16. Further, through holes were added to all side plates of the first hardware at a height of 120.5 mm from the upper surface, and through holes were similarly added to the web of the winning side beam. The upper and lower flanges of the losing side beam were also provided with through holes at positions d = 25 mm from the beam core and d = 25 mm from the beam tip.

  In the winning side beam, the two back plates of the first hardware are made to face each other so that the positions of the through holes are aligned, and the second side plate of these hardwares is placed on the web surface of the winning side beam and the through holes of the hardware and the web Were placed in contact with each other. If the losing side beam is not attached to the other side of the web, as shown in Example 1, two first hardwares may be arranged adjacent to each other. Same arrangement on both sides.

  In the losing side beam, the two first hardwares are arranged so that the back plates face each other with the web of the losing side beam interposed therebetween, and the first side faces of the losing side beam are on the leading end side of the losing side beam.

  In these hardwares, at least the metal objects facing each other through the respective beam webs are fastened with M16 bolts and nuts through the through holes. More preferably, the upper and lower flanges of each beam are also M16 bolts and nuts. Tighten with.

  The winning side beam and the losing side beam were joined together with the winning side beam hardware and the through hole portion of the losing side beam facing each other, and tightened with M16 bolts and nuts. As a result, the losing side beam could be joined to the winning side beam at a predetermined position without welding. In addition, according to the above method, an L-shaped joint portion with two beams, a T-shaped joint portion with three beams, and a cross-shaped joint portion could be easily constructed by a butting method.

Example 4) An example in which two beams are joined to a T-shaped bracket by using only the first hardware (see FIG. 11).
In the same manner as in Example 3, four first hardware items were placed on the winning side beam. Next, a gap of 2 × t = 3.2 mm is generated between the two first hardwares on the side where the losing side beam is attached, and the bracket is made of a flat plate having the same thickness as the gap. Arranged. That is, the bracket is disposed on the web core of the losing side beam. Although the depth (length) dimension of this bracket is 100 mm and the height (width) dimension is 241 mm, the height dimension may be smaller than 241 mm. The bracket consists of a part (mounting part) fixed to the hardware and a part (extending part) fixed to the web of the losing side beam, and the extending part is shifted to one side by 2 × t = 3.2 mm from the center. Bending is done to do. As a result, the contact surface of the losing side beam with the web is arranged at a position 1.6 mm from the core of the losing side beam, and the losing side beam matches the structural core by contacting the web of the losing side beam. Can be arranged. The bracket mounting portion is provided with two through-holes corresponding to M10 in the vertical direction corresponding to the through-holes of the back plate of the first hardware, and the upper through-hole is 60 mm from the upper end and the lower through-hole. The holes were arranged at a position of 60 mm from the lower end and 23.4 mm from the tip of the attachment part. The extension part is 25 mm from the tip, three in the height direction, two at the same height as each side plate, and one in the middle in the height direction. A hole was provided. This bracket was previously sandwiched between the gaps and fixed integrally with M10 bolts and nuts through the through holes in the back plate portions of the two hardwares.

  These hardwares were at least fastened to each other through the respective beam webs and were fastened with M10 bolts and nuts through the through holes, and the upper and lower flanges of the beams were fastened with M16 bolts and nuts. Then, the web of the losing beam was brought into contact with the surface of the losing beam on the structural core side of the extending portion of the bracket, and was fastened with M16 bolts and nuts to join the beams to the T shape. As a result, it was possible to join the losing side beam to the winning side beam with a desired strength at a predetermined position without welding by combining a single hardware. Although the bracket has shown an example in which the extending portion is bent so as to shift to one side by 2 × t = 3.2 mm, it can be used without bending. According to this, since the bracket is disposed on the structural core and the web thickness of the losing side beam is equal to the thickness of the bracket, the bracket is not bent and joined by using the losing side beam and the gusset plate. The losing side beam can be arranged at a predetermined position. The joining type may be one-sided shear or two-sided shear.

Example 5) An example in which a column is joined to a beam joint using pillar hardware (see FIG. 13).
Columns were joined to the beam joints described in Example 1 using pillar hardware. The used columnar hardware was made of steel, and was assembled by welding flat plates having a width of 100 mm and a depth of 100 mm to the upper and lower surfaces of a cross-shaped member having a horizontal cross-sectional shape of a cross shape of width 100 mm × depth 100 mm × height 132 mm. The thicknesses of the steel materials are all 16 mm, and the finished dimensions of the hardware are 100 mm width × 100 mm depth × 150 mm height. Four through holes corresponding to M16 are provided on one of the upper and lower flat plates, and each through hole is positioned from the center line of the flat plate so as to coincide with the position of the through hole provided in the beam flange on the winning side. d = 25 mm, and the distance between the centers of adjacent through holes was 2 × d = 50 mm.

  As for the column hardware, the flat plate side having no through hole was welded to both ends of a column member made of a square steel pipe of □ -100 × 100 × 4.5. The column members are arranged with the column head on the lower side of the lower flange of the beam and the column base on the upper side of the upper flange of the beam so that the respective through holes are aligned, and M16 bolts are passed through the through holes from the beam web side. The first hardware or the second hardware, the beam flange, and the column hardware were fixed and joined together. The bolt and nut set used here was a high tension bolt and nut, and was used for tensile joining. As a result, it was possible to form a column beam joint portion that facilitates member arrangement at a predetermined position without welding and exhibits the desired strength.

  In addition, by the said method, the column was able to be joined without a problem also to the beam junction part described in Example 4, and the favorable column beam junction part was able to be formed.

Example 6) Example with vertical braces attached (see Fig. 14)
When attaching a turnbuckle brace by providing a through hole in a cross-shaped member of a pillar hardware, the through-hole may be provided without extending the cross-shaped member, but here the eccentricity of the brace is eliminated. In order to secure good structural performance, an example in which one of the cross-shaped plate elements is extended to provide an extension instead of the column hardware used in the beam-column joint described in Example 5 Will be described. The projecting length of the extending part was 100 mm from the upper and lower flat plates in plan view, and a through hole corresponding to M24 for attaching the turnbuckle brace was provided. The position of the through hole was 75 mm, which is ½ of the height of the hardware, and a position 25 mm from the end face of the extending part. The height of the columns is 2650 mm, and the interval between the columns is 1820 mm. The column was attached to the inner side of the construction surface formed by these columns and the upper and lower beams with the extension portion facing. And the turnbuckle brace was attached to the through-hole of the extension part with the bolt of M24. Here, since the distance between the upper and lower beam cores is 2900 mm, the extension line of the turnbuckle brace fixed to the through hole of the extension portion is the intersection of the beam height core and the column core. Further, it passes through a position 125 mm from the column core at the height of the through hole of the cross-shaped member, that is, the position of the through hole.

  Although an example in which the cross-shaped member is extended is shown here, a bracket may be joined as shown in FIG.

As described above, in the above embodiment, the M10 bolt is used for fixing the metal to the beam web and the metal to each other, and the M16 bolt is used for fixing the beam flange. However, the metal and beam web are fixed. Alternatively, fixing of the hardware and the beam flange may be omitted by increasing the number of through-holes used for fixing the hardware to each other, for example, by increasing the number of through-holes corresponding to M16 to three vertically.
In the above embodiment, d = 25 mm, t = 1.6 mm, and h = 241 mm. However, d, t, and h vary depending on the dimensions of the H-shaped steel, and the dimensions of the hardware also vary accordingly. The plate thickness of the hardware and the diameter of the through hole may be arbitrarily set according to the structure design or the like as necessary. Further, the column members to be joined are not limited to those described here, and any member and size such as a square steel pipe and an H-shaped steel can be used. For example, □ -75 × 75 × 3. 2 or H-100 × 100 × 6 × 9 may be used.

DESCRIPTION OF SYMBOLS 10 1st metal fitting 11 Upper board 12 Lower board 13 1st side board 14 2nd side board 15 Back board 16a-16e Through-hole 20 2nd hardware 21 Upper board 22 Lower board 23 1st side board 23a Extension part 24 Second side plate 25 Back (back plate)
26a-26f Through-hole 40 Bracket 40a, 40b Through-hole 50 Column joint metal 51, 52 Flat plate 53 Cross-shaped member 53a Plate element 53b Through-hole 54 Through-hole 55 Bracket 55a, 55b Through-hole 60 Winning side beam 60a, 60b Through-hole 61 Web of winning side beam 70 Losing side beam 70a, 70b, 70c Through hole 71 Web of losing side beam 80 Column 80a Upper column 80b Lower column

Claims (10)

For beams of steel structures used for reinforcement of beams made of H-shaped steel with a flange width of 4xd, web thickness of 2xt, and internal height between the upper and lower flanges of h, or for joining beams a gold compound,
The beam hardware consists of an upper plate, a lower plate, a first side plate, a second side plate, and a back plate. The width is (2 × dt), the depth is (2 × dt), and the height is less than h. The front plate is a substantially rectangular parallelepiped, and the upper plate and the lower plate are provided with one through hole at a position d from the front and d from the surface of the first side plate, the first side plate, The second side plate and the back plate are provided with a plurality of through holes in at least one row in the vertical direction, and the through holes provided in the first and second side plates are located at a position d from the front. the through hole provided in the beam for gold of steel structure, which is a vertically symmetrical shape in the position of d from the surface of the first side plate. For beams of steel structures used for reinforcement of beams made of H-shaped steel with a flange width of 4xd, web thickness of 2xt, and internal height between the upper and lower flanges of h, or for joining beams Hardware,
The beam hardware consists of an upper plate, a lower plate, a first side plate, a second side plate, and a back plate. The width is (2 × dt), the depth is (2 × dt), and the height is less than h. The front plate is a substantially rectangular parallelepiped, and the upper plate and the lower plate are provided with one through hole at a position d from the front and d from the surface of the first side plate, the first side plate, The second side plate and the back plate are provided with a plurality of through holes in at least one row in the vertical direction, and the through holes provided in the first and second side plates are located at a position d from the front. The through-hole provided in is a vertically symmetrical shape at a position d from the surface of the first side plate,
It said first side plate, the extended portion of the plurality of through holes to the front direction provided a line in at least the longitudinal direction is provided, and the extending portion so as to shift by the second side plate t beams for gold of steel structure, characterized in that the. The winning side beam and the losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h are either or both of the web surfaces of the winning side beam. A steel structure beam joint joined so that the losing side beam can be attached to
The web surface on the side on which the losing side beam of the winning side beam is attached is a first hardware which is a steel hardware for a steel structure according to claim 1 and a steel hardware for a steel structure according to claim 2. In the state where the first side plates of the two hardwares are adjacent to each other and the adjacent boundary portion is coincident with the structural core of the losing side beam, the first hardware and the first metal plate are in contact with each other. Place two hardware,
The first hardware 2 so that the respective back plates are in contact with the web surface of the winning side beam on which the losing side beam is not attached, with the first side plates of the two first hardware adjacent to each other. Place the pieces,
Bolts and nuts that face each other across the win side beam web through the through hole provided in the back plate of the first hardware or the second hardware and the through hole provided in the web of the win side beam Fixed with
The second hardware and the losing side beam are bolted through the through hole provided in the extending portion of the first side plate of the second hardware and the through hole provided in the web at the tip of the losing side beam. A beam joint of a steel structure characterized by being fixed with a nut. The winning side beam and the losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h are either or both of the web surfaces of the winning side beam. A steel structure beam joint joined so that the losing side beam can be attached to
The web surface of the side where the losing side beam of the winning side beam is attached has two back plates of the first hardware, which is the metal hardware for the steel structure according to claim 1, so as to have a gap of 2 × t. In the state of being opposed to each other, the center of the gap is made coincident with the position that becomes the structural core of the losing side beam, and the two first hardwares are arranged so that the respective second side plates abut,
The web side of the winning side beam on which the losing side beam is not attached is contacted by the respective second side plates with the two back plates of the first hardware facing each other with a gap of 2 × t. Arrange two first hardware so that each back plate abuts in contact with each other or in a state where the first side plates are adjacent to each other,
Bolts and nuts that face each other across the win side beam web through the through hole provided in the back plate of the first hardware or the second side plate and the through hole provided in the web of the win side beam Fixed with
The first hardware is arranged so that the back plate abuts on both sides of the web at the tip of the losing side beam, and through holes provided in the back plate of these hardware and the web at the tip of the losing beam are provided. And fix the hardware facing each other across the web of the losing beam with bolts and nuts,
A first side plate of two first hardware fixed to a side to which a losing side beam of the winning side beam is attached, and a first side plate of two first hardware fixed to the tip of the losing side beam, or A beam joint of a steel structure, wherein the second side plate is fixed with bolts and nuts through respective through holes. The winning side beam and the losing side beam made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h are either or both of the web surfaces of the winning side beam. A steel structure beam joint joined so that the losing side beam can be attached to
The back surface of the two first hardwares, which are the hardwares for the steel structure according to claim 1 , are opposed to the web surface on the side where the losing side beam of the winning side beam is attached so as to have a gap of 2 × t. The first hardware is arranged in such a state that the center of the gap coincides with the structural core of the losing side beam so that the second side plates come into contact with each other.
The web surface on the side where the losing side beam is not possessed win side beams, each of the second side plate while being opposed so as to have a gap between the first hardware two back plate between the 2 × t abuts Or, arrange the two first hardware so that each back plate abuts with the first side plates adjacent to each other,
Further, between the two first hardwares arranged on the side where the losing side beam of the winning side beam is attached, the thickness is 2 × t and the length is longer than (2 × dt), and this long portion Place the bracket where (extension part) is shifted by 2 × t,
Bolts that connect the opposing hardware with the web of the winning side beam sandwiched between the through hole provided in the back plate or the second side plate of the first hardware and the through hole provided in the web of the winning side beam Fixed with nuts,
The bracket is bolted between the first hardware through the through hole provided in the back plate of the two first hardware and the bracket's through hole located on the side where the losing side beam is attached. Fixed with nuts,
The bracket and the losing side beam are fixed with bolts and nuts through the through hole provided in the extending portion of the bracket and the through hole provided in the web of the leading end portion of the losing side beam. Beam joint of steel structure. At the tip of the pillar, there is a cross-shaped member with a cross-shaped cross section by combining plate elements and a flat plate attached to the top and bottom of the cross-shaped member. Welding,
The through hole provided in the pillar hardware and the flange of the beam joint are provided on either or both of the upper side and the lower side of the beam joint of the steel structure according to any one of claims 3 to 5. A beam joint of a steel structure, wherein a pillar is fixed with a bolt and a nut through a through hole.   The through-hole provided in either one of the upper and lower flat plates of the pillar hardware is provided at one place in each section partitioned by the cross-shaped member so that the center-to-center distance is 2 × d. The beam joint of a steel structure according to claim 6.   The beam joint part for a steel structure according to claim 6 or 7, wherein a through hole for attaching a vertical brace is provided in at least one plate element of the cross-shaped member of the pillar hardware.   9. The beam of a steel structure according to claim 8, wherein the plate element for attaching the vertical brace is provided with a protruding portion protruding from the upper and lower flat plates in a plan view, and a through hole is provided in the protruding portion. Junction. 2. The steel structure beam fixture according to claim 1, wherein each of the surfaces of the beam web made of H-shaped steel having a flange width of 4 × d, a web thickness of 2 × t, and an internal height of h is h there a first hardware two first side plates so that each of the back plate in a state of being adjacent to the abutment, arranged two first hardware,
The metal fittings facing each other across the web of the beam are fixed with bolts and nuts through the through hole provided in the back plate of the first hardware and the through hole provided in the web of the beam. Beam reinforcement for steel structures.

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