JP2019199714A - Composite floor slab and beam floor structure - Google Patents

Composite floor slab and beam floor structure Download PDF

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JP2019199714A
JP2019199714A JP2018093768A JP2018093768A JP2019199714A JP 2019199714 A JP2019199714 A JP 2019199714A JP 2018093768 A JP2018093768 A JP 2018093768A JP 2018093768 A JP2018093768 A JP 2018093768A JP 2019199714 A JP2019199714 A JP 2019199714A
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floor slab
steel
upper side
floor
topping concrete
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JP7228337B2 (en
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秀宜 門脇
Hidenobu Kadowaki
秀宜 門脇
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Shimizu Construction Co Ltd
Shimizu Corp
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Shimizu Construction Co Ltd
Shimizu Corp
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Abstract

To provide a composite floor slab capable of securing high yield strength and easily performing quality control and process control, and to provide a beam floor structure.SOLUTION: In a composite floor slab 1 having a half-PC floor slab 2 provided on an upper part of a steel beam (beam) and topping concrete placed on an upper side of the half-PC floor slab 2, a plurality of shape steels 4 are mounted in parallel to each other on the upper side of the half-PC floor slab 2 and embedded in the topping concrete. In a beam floor structure having the steel beam (beam), the half-PC floor slab 2 provided on the upper part of the steel beam, and the topping concrete 3 placed on the upper side of the half-PC floor slab 2, a plurality of shape steels 4 mounted in parallel to each other on the upper side of the half-PC floor slab 2 and embedded in the topping concrete 3, and the shape steel 4 is arranged to extend in a direction orthogonal to an extension direction of the steel beam, and a middle part in a length direction is arranged just above the steel beam.SELECTED DRAWING: Figure 2

Description

本発明は、合成床版および梁床構造に関する。   The present invention relates to a composite floor slab and a beam floor structure.

廃棄物貯蔵庫のような載荷重の大きい(例えば、4.5t/m)床の複層建屋を計画する際に、スパンの制約から床受梁の梁せいを大きくしなければならないことがある。床受け梁の梁せいを大きくすると、階高に影響するとともに、建物全体の建設コストが高くなるという問題がある。これに対し、例えば特許文献1に記載されているような高耐力の合成床版を採用して梁せいを抑えたり、合成床版を一方向版として採用して梁を省略したりする計画が行われている。 When planning a multi-story building with a large load (for example, 4.5 t / m 2 ) such as a waste storage, it may be necessary to increase the beam length of the floor support beam due to span limitations. . Increasing the size of the floor support beam affects the floor height and increases the construction cost of the entire building. On the other hand, for example, there is a plan to use a high-strength composite floor slab as described in Patent Document 1 to suppress the beam, or to adopt a composite floor slab as a one-way version and omit the beam. Has been done.

特開2005−226252号公報JP 2005-226252 A

SC構造の合成床版は、優れた性能を期待することができるが、例えば、下端鋼板をすべて現場溶接したり、特殊な製作物を製作したりすることがある。このため、建方精度にばらつきが生じたり、工期が長くなったりして、品質管理、工程管理に労力がかかるという問題がある。   The composite structure slab of SC structure can be expected to have excellent performance. For example, the bottom end steel plate may be all welded in the field, or a special product may be manufactured. For this reason, there is a problem that the construction accuracy varies and the construction period becomes long, and labor is required for quality control and process control.

そこで、本発明は、高耐力を確保できるとともに、品質管理および工程管理を容易に行うことができる合成床版および梁床構造を提供することを目的とする。   Then, an object of this invention is to provide the composite floor slab and the beam floor structure which can ensure high yield strength and can perform quality control and process control easily.

上記目的を達成するため、本発明に係る合成床版は、梁の上部に設けられたハーフPC床版と、前記ハーフPC床版の上側に打設されたトッピングコンクリートと、を有する合成床版において、前記ハーフPC床版の上側に互いに平行となるように載置され、前記トッピングコンクリートに埋設された複数の形鋼を有することを特徴とする。   In order to achieve the above object, a composite floor slab according to the present invention includes a half PC floor slab provided on an upper part of a beam, and a topping concrete placed on the upper side of the half PC floor slab. In the above, it has a plurality of section steels placed on the upper side of the half PC floor slab so as to be parallel to each other and embedded in the topping concrete.

本発明では、ハーフPC床版の上側のトッピングコンクリートに複数の形鋼が埋設されていることにより、合成床版を下部側ではハーフPC床版が応力を負担し、上部側では形鋼が応力を負担する高耐力な構造とすることができる。
また、複数の形鋼は、平行に配列されていることにより、合成床版が一方向版となり、形鋼が延びる方向の梁を省略することができる。
また、形鋼は、ハーフPC床版の上部に載置された構成であるため、形鋼とハーフPC床版とを接合するための溶接やボルト接合が不要となり、品質管理および工程管理を容易に行うことができる。
In the present invention, since a plurality of section steels are embedded in the topping concrete on the upper side of the half PC floor slab, the half PC floor slab bears the stress on the lower side of the composite floor slab, and the shape steel is stressed on the upper side. It can be set as the high-proof structure which bears.
Further, since the plurality of shape steels are arranged in parallel, the composite floor slab becomes a unidirectional plate, and the beam in the direction in which the shape steel extends can be omitted.
In addition, because the shape steel is placed on top of the half PC floor slab, welding and bolt joining for joining the shape steel and the half PC floor slab are unnecessary, facilitating quality control and process control. Can be done.

また、本発明に係る合成床版では、前記ハーフPC床版の上部には、前記形鋼の少なくとも下部側が挿入される溝部が形成されていてもよい。
このような構成とすることにより、ハーフPC床版に対する形鋼の位置決めを容易に行うことができるため、品質管理および工程管理を容易に行うことができる。
また、ハーフPC床版の上面が平坦面である場合と比べて、ハーフPC床版とトッピングコンクリートとの定着面を大きくすることができる。
In the composite floor slab according to the present invention, a groove portion into which at least the lower side of the shape steel is inserted may be formed in the upper portion of the half PC floor slab.
By setting it as such a structure, since positioning of the shape steel with respect to a half PC floor slab can be performed easily, quality control and process control can be performed easily.
Moreover, compared with the case where the upper surface of a half PC floor slab is a flat surface, the fixing surface of a half PC floor slab and topping concrete can be enlarged.

また、本発明に係る梁床構造は、梁と、前記梁の上部に設けられたハーフPC床版と、前記ハーフPC床版の上側に打設されたトッピングコンクリートと、を有する梁床構造において、前記ハーフPC床版の上側に互いに平行となるように載置され、前記トッピングコンクリートに埋設された複数の形鋼を有し、前記形鋼は、前記梁が延びる方向と直交する方向に延びる向きに配置され、長さ方向の中間部が前記梁の直上に配置されていることを特徴とする。   Moreover, the beam floor structure according to the present invention is a beam floor structure comprising a beam, a half PC floor slab provided on the upper part of the beam, and topping concrete placed on the upper side of the half PC floor slab. And having a plurality of section steels that are placed parallel to each other on the upper side of the half PC floor slab and embedded in the topping concrete, and the section steels extend in a direction orthogonal to the direction in which the beams extend. It is arrange | positioned in the direction and the intermediate part of the length direction is arrange | positioned directly on the said beam, It is characterized by the above-mentioned.

本発明では、ハーフPC床版の上側のトッピングコンクリートに複数の形鋼が埋設されていることにより、合成床版を下部側ではハーフPC床版が応力を負担し、上部側では形鋼が応力を負担する高耐力な構造とすることができる。
そして、形鋼は、梁が延びる方向と直交する方向に延びる向きに配置され、長さ方向の中間部が梁の直上に配置されていることにより、曲げモーメントが最大となる梁の上側に形鋼の長さ方向の中間部が配置されるため、梁の上側に作用する応力を形鋼が負担することができる。
また、複数の形鋼は、平行に配列されていることにより、合成床版が一方向版となり、形鋼が延びる方向の梁を省略することができる。
また、形鋼は、ハーフPC床版の上部に載置された構成であるため、形鋼とハーフPC床版とを接合するための溶接やボルト接合が不要となり、品質管理および工程管理を容易に行うことができる。
In the present invention, since a plurality of section steels are embedded in the topping concrete on the upper side of the half PC floor slab, the half PC floor slab bears the stress on the lower side of the composite floor slab, and the shape steel is stressed on the upper side. It can be set as the high-proof structure which bears.
The shape steel is arranged in a direction extending in a direction perpendicular to the direction in which the beam extends, and the intermediate portion in the length direction is arranged immediately above the beam, so that the shape steel is formed on the upper side of the beam where the bending moment is maximized. Since the middle part in the length direction of the steel is arranged, the shape steel can bear the stress acting on the upper side of the beam.
Further, since the plurality of shape steels are arranged in parallel, the composite floor slab becomes a unidirectional plate, and the beam in the direction in which the shape steel extends can be omitted.
In addition, because the shape steel is placed on top of the half PC floor slab, welding and bolt joining for joining the shape steel and the half PC floor slab are unnecessary, facilitating quality control and process control. Can be done.

本発明によれば、高耐力を確保できるとともに、品質管理および工程管理を容易に行うことができる。   According to the present invention, high yield strength can be ensured, and quality control and process control can be easily performed.

本発明の実施形態による合成床版および梁床構造の一例を示す図で桁間方向に沿った鉛直面による断面図である。It is a figure showing an example of a composite floor slab and a beam floor structure by an embodiment of the present invention, and is a sectional view by a vertical plane along the inter-girder direction. 図1のA−A線断面図である。It is the sectional view on the AA line of FIG.

以下、本発明の実施形態による合成床版および梁床構造について、図1および2に基づいて説明する。
図1に示すように、本実施形態による合成床版1は、構造物11の鉄骨梁(梁)12の上側に設けられている。
鉄骨梁12は、構造物11の梁間方向(図1の紙面に直交する方向)に延びる向きで、構造物11の桁行方向(図1の左右方向)に間隔をあけて複数設けられている。
Hereinafter, a composite floor slab and a beam floor structure according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, the composite floor slab 1 according to the present embodiment is provided above a steel beam (beam) 12 of a structure 11.
A plurality of steel beams 12 are provided in the direction extending between the beams of the structure 11 (a direction orthogonal to the paper surface of FIG. 1) and spaced in the direction of the structures 11 (the left-right direction in FIG. 1).

図1および図2に示すように、合成床版1は、鉄骨梁12の上側に設けられたハーフPC床版2と、ハーフPC床版2の上側に打設されたトッピングコンクリート3と、ハーフPC床版2の上側に載置され、トッピングコンクリート3に埋設された複数の形鋼4と、を有している。   As shown in FIGS. 1 and 2, the composite floor slab 1 includes a half PC floor slab 2 provided on the upper side of the steel beam 12, a topping concrete 3 placed on the upper side of the half PC floor slab 2, and a half And a plurality of section steels 4 placed on the upper side of the PC floor slab 2 and embedded in the topping concrete 3.

ハーフPC床版2は、プレキャストプレストレスト床版でPS鋼線21によってプレストレスが導入されている。PS鋼線21は、桁行方向に延びる向きに配置されている。
ハーフPC床版2は、構造物11の桁行方向および梁間方向に複数配列され、それぞれ桁行方向に隣り合う鉄骨梁12の間に架けられている。ハーフPC床版2は、桁行方向の一方側の端部2aが桁行方向に隣り合う鉄骨梁12のうちの桁行方向の一方側の鉄骨梁12の上部に接合され、桁行方向の他方側の端部2bが桁行方向に隣り合う鉄骨梁12のうちの桁行方向の他方側の鉄骨梁12の上部に接合されている。
ハーフPC床版2の下面は、平坦面に形成されている。ハーフPC床版2の上面は、桁行方向に延びて上側に開口する溝部22が梁間方向に間隔をあけて複数形成されている。溝部22には、形鋼4の下部側が挿入されるように構成されている。溝部22の幅寸法は、形鋼4の幅寸法よりもやや大きく形成されている。溝部22の底部221は、平坦面に形成されている。
The half PC floor slab 2 is a precast prestressed floor slab, and prestress is introduced by the PS steel wire 21. The PS steel wire 21 is arranged in a direction extending in the column direction.
A plurality of half PC floor slabs 2 are arranged in the row direction of the structure 11 and the direction between the beams, and are spanned between adjacent steel beams 12 in the row direction. The half PC floor slab 2 has an end 2a on one side in the row direction joined to an upper part of the steel beam 12 on one side in the row direction among the steel beams 12 adjacent in the row direction, and the other end in the row direction. The part 2b is joined to the upper part of the steel beam 12 on the other side in the row direction among the steel beams 12 adjacent in the row direction.
The lower surface of the half PC floor slab 2 is formed as a flat surface. The upper surface of the half PC floor slab 2 is formed with a plurality of groove portions 22 that extend in the column direction and open to the upper side at intervals in the inter-beam direction. The groove 22 is configured such that the lower side of the shaped steel 4 is inserted. The width dimension of the groove part 22 is formed slightly larger than the width dimension of the shaped steel 4. The bottom part 221 of the groove part 22 is formed on a flat surface.

形鋼4は、H形鋼4やI形鋼4などで、2つのフランジが上下に配置され、桁行方向に延びる向きに配置されている。形鋼4は、梁間方向に間隔をあけて複数設けられている。
形鋼4は、下部側が溝部22に挿入され、溝部22の底部221に載置されている。形鋼4の底面(下フランジの下面)41と、溝部22の底部221とは面接触している。形鋼4は複数設けられ、それぞれ溝部22の底面に載置されている。
形鋼4は、ハーフPC床版2の上部に載置されているだけで、ハーフPC床版2とは溶接やボルト接合されていない。
形鋼4の長さ寸法は、桁行方向に隣り合う梁の間隔よりも短く設定されている。形鋼4は、長さ方向の中間部4aが鉄骨梁12の直上に配置され、長さ方向の両端部4b,4cが桁行方向に隣り合う鉄骨梁12の間に配置されている。
形鋼4は、桁行方向にも配列されていて、桁行方向に隣り合う形鋼4,4は、桁行方向に対向する端部4b,4cどうしが離間している。桁行方向に隣り合う形鋼4の間の部分は、ハーフPC床版2の桁行方向の中間部2cの上方となり、ハーフPC床版2の桁行方向の中間部2cの上方には、形鋼4が配置されていない。
The section steel 4 is an H-section steel 4, an I-section steel 4, or the like, and two flanges are disposed vertically and are disposed in a direction extending in the direction of the beam. A plurality of shape steels 4 are provided at intervals in the inter-beam direction.
The shape steel 4 is inserted into the groove 22 on the lower side and is placed on the bottom 221 of the groove 22. The bottom surface (lower surface of the lower flange) 41 of the shape steel 4 and the bottom portion 221 of the groove portion 22 are in surface contact. A plurality of section steels 4 are provided, and each is placed on the bottom surface of the groove 22.
The shape steel 4 is merely placed on the half PC floor slab 2 and is not welded or bolted to the half PC floor slab 2.
The length dimension of the structural steel 4 is set to be shorter than the interval between adjacent beams in the column direction. In the shape steel 4, a middle portion 4a in the length direction is disposed immediately above the steel beam 12, and both end portions 4b and 4c in the length direction are disposed between the steel beams 12 adjacent to each other in the row direction.
The section steels 4 are also arranged in the column direction, and the ends 4b and 4c facing each other in the column direction of the section steels 4 and 4 adjacent to each other in the column direction are separated from each other. A portion between the shape steels 4 adjacent to each other in the row direction is above the intermediate portion 2c in the row direction of the half PC floor slab 2, and above the intermediate portion 2c in the row direction of the half PC floor slab 2 Is not placed.

トッピングコンクリート3は、ハーフPC床版2の上部全体に現場にて打設され、上端面が形鋼4の上端面と同じ高さとなるように設けられている。トッピングコンクリート3は、ハーフPC床版2の桁行方向の中間部2cの上方の形鋼4が配置されていない部分にも打設されている。
トッピングコンクリート3は、ひび割れ防止用の鉄筋を設ける程度で、配筋を行わなくてもよい。
The topping concrete 3 is placed on the entire upper part of the half PC floor slab 2 at the site, and is provided so that the upper end surface is the same height as the upper end surface of the shaped steel 4. The topping concrete 3 is also placed in a portion where the section steel 4 above the intermediate portion 2c in the direction of the row of the half PC floor slab 2 is not disposed.
The topping concrete 3 does not need to be arranged as long as a reinforcing bar for preventing cracks is provided.

次に、上述した本実施形態による合成床版および梁床構造の作用・効果について図面を用いて説明する。
上述した本実施形態による合成床版1では、ハーフPC床版2の上側のトッピングコンクリート3に複数の形鋼4が埋設されていることにより、合成床版1を下部側ではハーフPC床版2が応力を負担し、上部側では形鋼4が応力を負担する高耐力な構造とすることができる。
また、複数の形鋼4は、平行に配列されていることにより、合成床版1が一方向版となり、桁行方向に延びる鉄骨梁を省略することができる。これにより、室内の天井高を高く確保することができる。
また、形鋼4は、ハーフPC床版2の上部に載置された構成であるため、形鋼4とハーフPC床版2とを接合するための溶接やボルト接合が不要となり、品質管理および工程管理を容易に行うことができる。
Next, operations and effects of the composite floor slab and the beam floor structure according to the present embodiment will be described with reference to the drawings.
In the composite floor slab 1 according to this embodiment described above, a plurality of shape steels 4 are embedded in the topping concrete 3 on the upper side of the half PC floor slab 2, so that the composite floor slab 1 is half-PC floor slab 2 on the lower side. Can bear a stress, and on the upper side, the structural steel 4 can have a high yield strength structure that bears the stress.
In addition, since the plurality of shaped steels 4 are arranged in parallel, the composite floor slab 1 becomes a unidirectional plate, and a steel beam extending in the direction of the beam can be omitted. Thereby, the ceiling height in the room can be secured high.
Moreover, since the shape steel 4 is the structure mounted in the upper part of the half PC floor slab 2, the welding and bolt joining for joining the shape steel 4 and the half PC floor slab 2 become unnecessary, quality control and Process management can be easily performed.

また、上述した本実施形態による梁床構造では、形鋼4は、鉄骨梁12が延びる方向と直交する方向に延びる向きに配置され、長さ方向の中間部4aが鉄骨梁12の直上に配置されている。
本実施形態による梁床構造では、上方からの荷重よって生じるモーメントが、上側では鉄骨梁12の鉛直方向上側の領域(内端上端)、下側では桁行方向に隣り合う鉄骨梁12の中間部の鉛直方向上側の領域(中央下端)で最大となる。
本実施形態では、曲げモーメントが最大となる鉄骨梁12の上側に形鋼4の長さ方向の中間部4aが配置されるため、鉄骨梁12の上側に作用する応力を形鋼4が負担することができる。
In the beam floor structure according to the present embodiment described above, the shaped steel 4 is arranged in a direction extending in a direction orthogonal to the direction in which the steel beam 12 extends, and the intermediate portion 4a in the length direction is arranged immediately above the steel beam 12. Has been.
In the beam floor structure according to the present embodiment, the moment generated by the load from above is the upper region of the steel beam 12 on the upper side (upper end of the inner end), and the lower side is the middle portion of the adjacent steel beam 12 in the direction of the beam. It becomes the maximum in the vertical upper area (lower center).
In this embodiment, since the intermediate part 4a of the length direction of the shaped steel 4 is arrange | positioned above the steel beam 12 where bending moment becomes the maximum, the shaped steel 4 bears the stress which acts on the upper side of the steel beam 12. be able to.

また、ハーフPC床版2の上部には、形鋼4の下部側が挿入される溝部22が形成されていることにより、ハーフPC床版2に対する形鋼4の位置決めを容易に行うことができるため、品質管理および工程管理を容易に行うことができる。ハーフPC床版2の上面が平坦面である場合と比べて、ハーフPC床版2とトッピングコンクリート3との定着面を大きくすることができる。   Moreover, since the groove part 22 by which the lower part side of the shape steel 4 is inserted is formed in the upper part of the half PC floor slab 2, positioning of the shape steel 4 with respect to the half PC floor slab 2 can be performed easily. Quality control and process control can be easily performed. Compared with the case where the upper surface of the half PC floor slab 2 is a flat surface, the fixing surface between the half PC floor slab 2 and the topping concrete 3 can be increased.

以上、本発明による合成床版および梁床構造の実施形態について説明したが、本発明は上記の実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、上記の実施形態では、ハーフPC床版2の上部には、形鋼4の下部側が挿入される溝部22が形成されているが、溝部22が形成されていなくてもよい。また、ハーフPC床版2の上部に溝部22が形成される場合は、溝部22の形状は適宜設定されてよい。溝部22には、形鋼4の下部側のみでなく上部側も挿入されるように構成されていてもよい。
また、上記の実施形態では、トッピングコンクリート3は、ハーフPC床版2の上部全体に打設され、上端面が形鋼4の上端面と同じ高さとなるように設けられているが、トッピングコンクリート3の上端面が形鋼4の上端面よりも上側となっていてもよい。
また、形鋼4には、トッピングコンクリート3と定着するためのスタッドなどが適宜設けられていてもよい。
As mentioned above, although embodiment of the composite floor slab and the beam floor structure by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above embodiment, the groove portion 22 into which the lower side of the shaped steel 4 is inserted is formed in the upper portion of the half PC floor slab 2, but the groove portion 22 may not be formed. Moreover, when the groove part 22 is formed in the upper part of the half PC floor slab 2, the shape of the groove part 22 may be set suitably. The groove portion 22 may be configured so that not only the lower side of the shaped steel 4 but also the upper side is inserted.
Further, in the above embodiment, the topping concrete 3 is placed over the entire upper part of the half PC floor slab 2 and the upper end surface is provided so as to be the same height as the upper end surface of the shape steel 4. The upper end surface of 3 may be above the upper end surface of the shaped steel 4.
In addition, the shape steel 4 may be appropriately provided with studs for fixing with the topping concrete 3.

1 合成床版
2 ハーフPC床版
3 トッピングコンクリート
4 形鋼
4a 中間部
12 鉄骨梁(梁)
22 溝部
DESCRIPTION OF SYMBOLS 1 Composite floor slab 2 Half PC floor slab 3 Topping concrete 4 Shaped steel 4a Middle part 12 Steel beam (beam)
22 Groove

Claims (3)

梁の上部に設けられたハーフPC床版と、前記ハーフPC床版の上側に打設されたトッピングコンクリートと、を有する合成床版において、
前記ハーフPC床版の上側に互いに平行となるように載置され、前記トッピングコンクリートに埋設された複数の形鋼を有することを特徴とする合成床版。
In a composite floor slab having a half PC floor slab provided on the top of the beam and topping concrete placed on the upper side of the half PC floor slab,
A composite floor slab comprising a plurality of section steels placed on the upper side of the half PC slab so as to be parallel to each other and embedded in the topping concrete.
前記ハーフPC床版には、前記形鋼の少なくとも下部側が挿入される溝部が形成されていることを特徴とする請求項1に記載の合成床版。   The synthetic floor slab according to claim 1, wherein a groove portion into which at least a lower side of the shape steel is inserted is formed in the half PC floor slab. 梁と、
前記梁の上部に設けられたハーフPC床版と、
前記ハーフPC床版の上側に打設されたトッピングコンクリートと、を有する梁床構造において、
前記ハーフPC床版の上側に互いに平行となるように載置され、前記トッピングコンクリートに埋設された複数の形鋼を有し、
前記形鋼は、前記梁が延びる方向と直交する方向に延びる向きに配置され、
長さ方向の中間部が前記梁の直上に配置されていることを特徴とする梁床構造。
With a beam,
A half PC floor slab provided on top of the beam;
In the beam floor structure having a topping concrete placed on the upper side of the half PC floor slab,
A plurality of section steels placed on the upper side of the half PC floor slab so as to be parallel to each other and embedded in the topping concrete;
The shape steel is arranged in a direction extending in a direction orthogonal to the direction in which the beam extends,
A beam floor structure, wherein an intermediate portion in a length direction is disposed immediately above the beam.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559974A (en) * 1978-07-08 1980-01-24 Takenaka Komuten Co Timberinggfree method of floor
JPS6198843A (en) * 1984-10-22 1986-05-17 株式会社 構建設計研究所 Composite floor
JPH0424349A (en) * 1990-05-21 1992-01-28 P S Co Ltd Half-pc member and its executing method
JPH11350607A (en) * 1998-06-11 1999-12-21 Taisei Corp Plate member fitting structure
JP2000248678A (en) * 1999-02-25 2000-09-12 Fujita Corp Shear reinforcing member, half-pc member, and method for constructing floor slab and wall using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559974A (en) * 1978-07-08 1980-01-24 Takenaka Komuten Co Timberinggfree method of floor
JPS6198843A (en) * 1984-10-22 1986-05-17 株式会社 構建設計研究所 Composite floor
JPH0424349A (en) * 1990-05-21 1992-01-28 P S Co Ltd Half-pc member and its executing method
JPH11350607A (en) * 1998-06-11 1999-12-21 Taisei Corp Plate member fitting structure
JP2000248678A (en) * 1999-02-25 2000-09-12 Fujita Corp Shear reinforcing member, half-pc member, and method for constructing floor slab and wall using the same

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