CN216969427U - Contact net narrow shape limit double-circuit cantilever braced system - Google Patents
Contact net narrow shape limit double-circuit cantilever braced system Download PDFInfo
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- CN216969427U CN216969427U CN202220345453.8U CN202220345453U CN216969427U CN 216969427 U CN216969427 U CN 216969427U CN 202220345453 U CN202220345453 U CN 202220345453U CN 216969427 U CN216969427 U CN 216969427U
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Abstract
The utility model discloses a contact net narrow-shape limit double-line cantilever supporting system which comprises a double-spliced double-section H-shaped steel column, wherein a flange plate is welded at the lower end of the double-spliced double-section H-shaped steel column, an N-shaped connecting base is fixed on the double-spliced double-section H-shaped steel column through bolts, a cantilever square pipe beam is fixed on the N-shaped connecting base through bolts, and a diagonal cable is connected between the outer wall of the top end of the double-spliced double-section H-shaped steel column and the cantilever square pipe beam. The contact net narrow-limitation double-line cantilever supporting system comprises a double-spliced double-section H-shaped steel support, a cantilever square tube beam, a connecting N-shaped connecting base of the support and the beam and a diagonal cable, and can meet the load requirements of 150kN.m for a vertical line and 450kN.m for a forward line.
Description
Technical Field
The utility model relates to the technical field of contact network supporting systems, in particular to a contact network narrow-form-limit double-line cantilever supporting system.
Background
At present, in the construction of an electrified railway, a double-side supporting system is generally adopted by the double-line railway to meet the power supply requirement of a contact network, and the double-side supporting system has complete solutions such as an H column cantilever system, a lattice column cantilever system, a hard span suspension system and the like according to the specific conditions of projects. However, as high-speed rail construction is moving to more areas, such as mountainous areas, rivers, bridges and other special areas, when two-line construction is performed, the two-side support system has the characteristics of poor two-side construction conditions and small railway clearance, the construction cost of a normal two-side support system in the environment is extremely high, and subsequent operation and maintenance are difficult, and for the problems, a single-side support system meeting the requirement of power supply of a narrow-clearance two-line contact network needs to be researched.
The research unilateral twin-line braced system adopts the cantilever beam to connect the davit as suspension, for satisfying the suspension load demand to do the bracing wire support to the cantilever beam, the contact net pillar need possess the characteristics of capacious, column body length. Meanwhile, in order to meet the problem of small limitation, the pillar flange needs to be optimized so as to reduce the size of the flange plate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a contact net narrow-limit double-line cantilever support system.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a narrow boundary line double-circuit cantilever braced system of contact net, includes two sections H-shaped steel columns of double-spelling, the welding of two sections H-shaped steel column low ends has the ring flange, the bolt fastening has N shape to connect the base on the two sections H-shaped steel columns of double-spelling, the bolt fastening has cantilever square tubular beams on the N shape connects the base, be connected with the stay cable between two sections H-shaped steel column top outer wall of double-spelling and the cantilever square tubular beams.
As a further description of the above technical solution:
the double-spliced double-section H-shaped steel column is composed of two H-shaped steel columns and a connecting flange, and the two H-shaped steel columns are fixedly connected through the connecting flange.
As a further description of the above technical solution:
and a stiffening plate is welded between the flange plate and the double-spliced double-section H-shaped steel column.
As a further description of the above technical solution:
the flange plate upper surface edge has seted up the bolt hole, the bolt hole has seted up a plurality of altogether, and the interval between two adjacent bolt holes equals, bolt hole female connection has rag bolt.
As a further description of the above technical solution:
the lifting column is characterized by further comprising a lifting column, wherein a connecting flange is welded at the top end of the lifting column, and the connecting flange is fixedly connected with the cantilever square tubular beam through bolts.
As a further description of the above technical solution:
the N-shaped connecting base is composed of two base channel steels, two base angle steels, a base angle steel stiffening plate, a base groove steel backing plate and fixed angle steels, wherein the two base channel steels are welded between the two base angle steels, the base angle steel stiffening plate is welded on the two base angle steels, the base groove steel backing plate is arranged on the two base channel steels, the two base groove steel backing plates are welded between the two base angle steels, the two base groove steel backing plates are welded with the fixed angle steels, and the two base groove steel backing plates are welded between the base angle steels.
As a further description of the above technical solution:
the size of the flange plate is 970mm multiplied by 810 mm.
As a further description of the above technical solution:
and a fastening bolt penetrating through the double-spliced double-section H-shaped steel column is in threaded connection between the two base angle steels, and two ends of the fastening bolt are in threaded connection with a limiting nut.
Compared with the prior art, the utility model has the beneficial effects that:
1. the narrow-limitation double-line cantilever support system for the contact network comprises double-spliced double-section H-shaped steel pillars, cantilever square tubular beams, N-shaped connecting bases for connecting the pillars and the beams, and diagonal cables, and can meet the load requirements of 150kN.m for a vertical line and 450kN.m for a straight line.
2. According to the narrow-limitation double-line cantilever support system for the contact network, the flange plate is optimally designed, the size of the flange after optimization is 970mm multiplied by 810mm, compared with the size of a lattice steel column flange which is 1416mm multiplied by 1016mm, the size of the flange along the line direction is reduced by 31%, the size of the flange along the vertical line direction is reduced by 20%, and the whole occupied area is reduced by 45%.
3. According to the narrow-limitation double-line cantilever support system for the contact network, the stiffening plate is arranged, firm connection between the H-shaped steel column and the bottom flange plate is guaranteed, the number of foundation bolts is increased, the foundation bolts are arranged along 4 directions of the flange plate in total, and stability of the bottom of the H-shaped steel column is greatly improved.
4. According to the narrow-limitation double-line cantilever support system for the contact network, the H-shaped steel column is connected with the cantilever square tube beam through the N-shaped connecting base, the N-shaped connecting base is a special connecting device designed according to the sizes of the double-spliced H column and the steel tube beam, the N-shaped connecting base is connected with the H column in an angle steel hoop mode, the base is prevented from falling off through the arrangement of the fastening bolt, and the fastening bolt is connected with the H-shaped steel column in a penetrating bolt mode to enhance the connection tightness.
Drawings
Fig. 1 is a schematic structural view of a narrow-limitation double-line cantilever support system of a contact network according to the present invention;
fig. 2 is a schematic structural view of a cross-sectional structure of a narrow-limitation double-line cantilever support system of a contact network according to the present invention;
fig. 3 is a front view of an N-shaped connecting seat of a narrow-limitation double-line cantilever support system of an overhead contact system according to the present invention;
fig. 4 is a side view of an N-shaped connecting seat of a narrow-limitation double-line cantilever support system of an overhead contact system according to the present invention;
fig. 5 is a schematic cross-sectional view of a double-spliced double-section H-shaped steel column of the catenary narrow-limitation double-line cantilever support system provided by the utility model.
Illustration of the drawings:
1. a flange plate; 11. a stiffening plate; 12. bolt holes; 2. an N-shaped connecting base; 21. base channel steel; 22. base angle steel; 23. a base angle steel stiffening plate; 24. a base groove steel base plate; 25. fixing angle steel; 3. a connecting flange; 4. double-spliced double-section H-shaped steel columns; 5. diagonal drawing; 6. a cantilever square tubular beam; 7. and (4) hanging columns.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, including two sections H shaped steel post 4 of double-spelling, the welding of 4 low ends of two sections H shaped steel post of double-spelling has ring flange 1, and bolted connection base 2 that appears on two sections H shaped steel post 4 of double-spelling is fixed with the N shape, and bolted connection base 2 goes up cantilever square tubular beam 6, is connected with oblique pull string 5 between 4 top outer walls of two sections H shaped steel post of double-spelling and cantilever square tubular beam 6.
The double-spliced double-section H-shaped steel column 4 consists of two H-shaped steel columns and a connecting flange 3, and the two H-shaped steel columns are fixedly connected through the connecting flange 3.
In this embodiment, the structural characteristics of the double-spliced double-section H-shaped steel strut are double-spliced and double-section. As shown in fig. 1, the cross section is as shown in fig. 5, the double spelling: in order to meet the load requirement of large capacity along the direction of a line, two H-shaped steel pillars are spliced and welded along the direction of the line, wherein the section forms of the H-shaped steel pillars are GH240, GH260, GH280, GH300, GHT240 and other types, the example is GHT240, and the double-section property is as follows: under the condition of double-line suspension, the height of a strut is designed to be 13m to meet the requirement of diagonal bracing, the maximum height of an H-shaped steel strut commonly used on the railway at present is 11m, the requirement cannot be met, through research and test, the existing H-shaped column is adopted for connecting and forming by segmented flanges, the first connecting section is 7.5-11m, the two connecting sections are 2-5.5m according to the actual requirement, and the connecting flanges are identical to the column bottom flange plate 1.
And a stiffening plate 11 is welded between the flange plate 1 and the double-spliced double-section H-shaped steel column 4.
Bolt holes 12 are formed in the edge of the upper surface of the flange plate 1, the bolt holes 12 are formed in a plurality of parts, the distance between every two adjacent bolt holes 12 is equal, and foundation bolts are connected in the bolt holes 12 in a threaded mode.
As shown in fig. 2: the stiffening plate 11 sets up to 14, guarantees the firm in connection of pillar body and bottom flange, increases rag bolt's quantity simultaneously, has set up 18 rag bolts along 4 directions altogether, greatly increased pillar bottom stability.
Still include davit 7, the welding of the top of davit 7 has flange 3, and flange 3 and cantilever side tube beam 6 bolt fixed connection.
The N-shaped connecting base 2 is composed of two base channel steels 21, two base angle steels 22, base angle steel stiffening plates 23, a base groove steel backing plate 24 and fixed angle steels 25, the two base channel steels 21 are welded between the two base angle steels 22, the base angle steel stiffening plates 23 are welded on the two base angle steels 22, the base groove steel backing plate 24 is arranged on the two base channel steels 21, the fixed angle steels 25 are welded between the two base channel steels 21, and the connecting angle steels are welded between the two base angle steels 22.
In this embodiment, as shown in fig. 1, fig. 3 and fig. 4, double pin double-section H-shaped steel column 4 and cantilever side tubular beams 6 adopt the N-shaped to be connected base 2, and the N-shaped is connected base 2 and is the special connecting device according to double pin double-section H-shaped steel column 4 and cantilever side tubular beams 6 size design, adopts the angle steel staple bolt form with double pin double-section H-shaped steel column 4 to be connected, prevents that the base from droing, adopts to penetrate the bolt formula with cantilever side tubular beams 6 and is connected, strengthens connecting the fastening nature.
The flange 1 has dimensions 970mm x 810 mm.
In this embodiment, for satisfying the boundary limit demand, on the premise of guaranteeing the load requirement, the double-spliced two-section type H-shaped steel column 4 carries out the optimal design to ring flange 1, and the flange size after optimizing is 970mm × 810mm, compares in lattice formula steel column flange size 1416mm × 1016mm, and its along line direction size reduces 31%, and perpendicular line direction size reduces 20%, and whole area occupied has reduced 45%.
And a fastening bolt penetrating through the double-spliced double-section H-shaped steel column 4 is in threaded connection between the two base angle steels 22, and two ends of the fastening bolt are in threaded connection with a limiting nut.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a narrow boundary limit dual circuit cantilever braced system of contact net, its characterized in that, including two sections H shaped steel post (4) of piecing together, the welding of two sections H shaped steel post (4) low ends has ring flange (1), bolt fastening has N shape to connect base (2) on two sections H shaped steel post (4) of piecing together, bolt fastening has cantilever square tubular beams (6) on N shape connects base (2), be connected with between two sections H shaped steel post (4) top outer wall of piecing together and cantilever square tubular beams (6) and draw one side (5).
2. The double-line cantilever support system for the narrow-limitation of the overhead line system according to claim 1, wherein the double-spliced double-section H-shaped steel column (4) is composed of two H-shaped steel columns and a connecting flange (3), and the two H-shaped steel columns are connected and fixed through the connecting flange (3).
3. The double-line cantilever support system for the narrow limitation of the overhead line system according to claim 1, wherein a stiffening plate (11) is welded between the flange (1) and the double-spliced double-section H-shaped steel column (4).
4. The double-line cantilever support system for the narrow limitation of the overhead line system according to claim 1, wherein bolt holes (12) are formed in corners of the upper surface of the flange plate (1), the bolt holes (12) are formed in a plurality, the distance between every two adjacent bolt holes (12) is equal, and anchor bolts are connected to the bolt holes (12) in a threaded mode.
5. The double-line cantilever support system for the narrow-limitation of the overhead line system according to claim 2, further comprising a suspension column (7), wherein the top end of the suspension column (7) is welded with the connecting flange (3), and the connecting flange (3) is fixedly connected with the cantilever square pipe beam (6) through a bolt.
6. The double-line cantilever support system with the narrow gauge of the contact net according to claim 1, wherein the N-shaped connection base (2) is composed of two base channel steels (21), two base angle steels (22), a base angle steel stiffening plate (23), a base channel steel backing plate (24) and a fixed angle steel (25), the two base channel steels (21) are welded between the two base angle steels (22), the base angle steel stiffening plate (23) is welded on the two base angle steels (22), the base channel steel backing plate (24) is arranged on the two base channel steels (21), the fixed angle steel (25) is welded between the two base channel steels (21), and the connection angle steel is welded between the two base angle steels (22).
7. The narrow-gauge double-line cantilever support system of claim 1, wherein the flange (1) has dimensions of 970mm x 810 mm.
8. The double-line cantilever support system of narrow limitation of contact net of claim 6, wherein, the two base angle steels (22) are connected with a fastening bolt through the double-spliced double-section H-shaped steel column (4) in a threaded manner, and two ends of the fastening bolt are connected with a limit nut in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220345453.8U CN216969427U (en) | 2022-02-21 | 2022-02-21 | Contact net narrow shape limit double-circuit cantilever braced system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220345453.8U CN216969427U (en) | 2022-02-21 | 2022-02-21 | Contact net narrow shape limit double-circuit cantilever braced system |
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| CN216969427U true CN216969427U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220345453.8U Active CN216969427U (en) | 2022-02-21 | 2022-02-21 | Contact net narrow shape limit double-circuit cantilever braced system |
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| CN (1) | CN216969427U (en) |
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- 2022-02-21 CN CN202220345453.8U patent/CN216969427U/en active Active
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