JP3388024B2 - Floor plate - Google Patents
Floor plateInfo
- Publication number
- JP3388024B2 JP3388024B2 JP13465294A JP13465294A JP3388024B2 JP 3388024 B2 JP3388024 B2 JP 3388024B2 JP 13465294 A JP13465294 A JP 13465294A JP 13465294 A JP13465294 A JP 13465294A JP 3388024 B2 JP3388024 B2 JP 3388024B2
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- dowel
- slab
- thin steel
- floor slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Panels For Use In Building Construction (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、橋梁の路面を形成する
際等に用いられる床版に係り、特に、鋼板にコンクリー
ト版を付着して形成され、その強度を好適に向上させた
床版に関する。
【０００２】
【従来の技術】従来、この種の床版は、薄鋼板にコンク
リート版を付着して合板とすることにより高強度に形成
されている。しかし、薄鋼板に対するコンクリート版の
接合が強くなければその高い強度を発揮することが出来
ない。そこで、従来の床版では、薄鋼板に中空パイプ状
のジベルが縦横に突設配置されており、そのジベルによ
り薄鋼板に対するコンクリート版の付着力の強化を図
り、床版の強度を向上させている。
【０００３】
【発明が解決しようとする課題】しかし、近年、湾内に
橋梁を設ける計画がなされており、そのような橋梁に
は、風や波等により大きな外力が加わると予想される。
そのように大きな外力が加わる橋梁の路面の形成に床版
を用いる場合には、従来の床版では強度上、若干の問題
があると指摘する向きがある。即ち、外力が加えられる
ことにより、薄鋼板をコンクリート版から剥離させよう
とする力が働き、これに応じて、薄鋼板のジベル突設部
に局所的に剥離を阻止しようとする力が働くが、前記外
力が大きいと、薄鋼板のジベル突設部周辺が局所的に変
形してしまう。すると、その変形部からコンクリート版
に対する薄鋼板の剥離が生じやすくなるので、結果的
に、床版の強度が低下するという問題を有している。
【０００４】本発明は上記事情に鑑み、従来に増して高
強度の床版を提供することを目的としている。
【０００５】
【課題を解決するための手段】請求項１記載の床版は、
鋼板と、該鋼板の一方の面側に形成されたコンクリート
版と、前記鋼板の一方の面側に複数突設され、前記コン
クリート版内部に埋設されたジベルとを具備する床版で
あって、前記ジベルと前記鋼板との間に、碗状に形成さ
れた荷重分散部材が設けられ、前記碗状に形成された荷
重分散部材は、前記ジベルが接続する上面側のジベル接
続面と、前記鋼板が接続する開口端側の鋼板接続面とを
備え、前記鋼板接続面の前記鋼板延在方向の両端の間隔
が、前記ジベル接続面の前記鋼板延在方向の両端の間隔
より大なることを特徴とする。
【０００６】
【作用】本発明によれば、荷重分散部材の鋼板接続面の
鋼板延在方向の両端の間隔が、ジベル接続面の鋼板延在
方向の両端の間隔より大なるように設けられているの
で、ジベルによる鋼板の剥離を阻止しようとする力は、
ジベルを直接鋼板に接続する場合に比して、分散されて
鋼板に伝えられるように作用する。
【０００７】
【実施例】以下、図面に基づき本発明の一実施例を説明
する。図５は本発明の床版を示す全体図であり、図５に
示すように、床版１００は、橋桁４上に設けられてい
る。床版１００は、橋桁４を中心として左右対称な左片
１００ａと右片１００ｂによりなり、左片１００ａ及び
右片１００ｂは、それぞれ、矩形の薄鋼板１を有してい
る。薄鋼板１の上面（図５上面）には、平坦な付着面１
ａが形成されており、付着面１ａには、薄鋼板１同様矩
形のコンクリート版２が重なるように付着されている。
コンクリート版２内部には、コンクリート版２の延在方
向縦横に複数の鉄筋３が配設されており、床版１００の
左片１００ａと右片１００ｂは、各片１００ａ、１００
ｂの内部に配設された鉄筋３の内、共有するように設け
られた鉄筋３（配力筋）等により一体化されている。ま
た、薄鋼板１の付着面１ａ側に設けられた複数のジベル
１０は、コンクリート版２内部に埋設されている。
【０００８】ジベル１０と付着面１ａとの間には、図１
及び図２に示すように、碗状に形成された荷重分散部材
３０が、その開口端を薄鋼板１の付着面１ａに向けて設
けられており、荷重分散部材３０は、その上面にジベル
１０に接続したジベル接続面３１を有している。また、
荷重分散部材３０の開口端には、薄鋼板１の付着面１ａ
に接続した鋼板接続面３２が形成されており、鋼板接続
面３２の薄鋼板１延在方向の両端の間隔Ｄ１は、ジベル
接続面３１の薄鋼板１延在方向の両端の間隔Ｄ２より大
きく設けられている。
【０００９】床版１００等は以上のような構成を有する
ので、荷重分散部材３０の鋼板接続面３２の薄鋼板１延
在方向の両端の間隔Ｄ１が、ジベル接続面３１の薄鋼板
１延在方向の両端の間隔Ｄ２より大なるように設けられ
ているので、ジベル１０による薄鋼板１の剥離を阻止し
ようとする力は、ジベル１０を直接薄鋼板１に接続する
場合に比して、分散されて薄鋼板１に伝えられる。よっ
て、薄鋼板１に局部的に大きな力が働かないようにする
ことが出来る。従って、従来のような薄鋼板１のジベル
突設部周辺の変形を防ぐことが出来、コンクリート版２
に対する薄鋼板１の剥離を阻止することが出来るので、
床版１００の強度の低下を防ぐことが出来る。よって、
本発明の床版１００は、従来に増して高い強度を有す
る。
【００１０】尚、上記実施例中の荷重分散部材３０は、
薄鋼板１をコンクリート版２側に碗状に突出させるよう
に成形して設けられても良いことは勿論である。また、
図３は、上記実施例中の荷重分散部材３０に代えて荷重
分散部材３０とは異なる形状を有する荷重分散部材４０
を設けた場合の別の実施例を示す図であり、図３に示す
ように、ジベル１０と付着面１ａとの間には、図３及び
図４に示すように、アングル材よりなる荷重分散部材４
０が、薄鋼板１の付着面１ａに伏せて設けられており、
荷重分散部材４０には、その上面にジベル１０に接続し
たジベル接続面４１を複数、荷重分散部材４０の延在方
向に所定の間隔をもって形成されている。また、荷重分
散部材４０の二股に分れた下端部は、それぞれ薄鋼板１
の付着面１ａに接続した鋼板接続面４２を形成してお
り、鋼板接続面４２の薄鋼板１延在方向の両端の間隔Ｄ
３は、ジベル接続面４１の薄鋼板１延在方向の両端の間
隔Ｄ４より大きく設けられている。よって、この実施例
においては、上記実施例に示す効果に加えて、荷重分散
部材４０に予め複数のジベル１０を接続しておくことに
より、荷重分散部材４０を薄鋼板１に溶接するだけで複
数のジベル１０を薄鋼板１に容易に施工することが出来
る。
【００１１】
【発明の効果】以上説明したように、本発明によれば、
ジベルによる鋼板の剥離を阻止しようとする力は、従来
のようにジベルを直接鋼板に接続する場合に比して、分
散されて鋼板に伝えられるので、鋼板に局部的に大きな
力が働かないようにすることが出来る。従って、従来の
ような鋼板のジベル突設部周辺の変形を防ぐことが出
来、コンクリート版に対する薄鋼板の剥離を阻止するこ
とが出来るので、床版の強度の低下を防ぐことが出来
る。よって、本発明の床版は、従来に増して高い強度を
有する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slab used for forming a road surface of a bridge, and more particularly to a slab formed by attaching a concrete slab to a steel plate. The present invention relates to a floor slab having suitably improved strength. Heretofore, this type of floor slab has been formed with high strength by attaching a concrete slab to a thin steel plate to form a plywood. However, if the concrete plate is not strongly bonded to the thin steel sheet, the high strength cannot be exhibited. Therefore, in conventional floor slabs, hollow pipe-shaped dowels are protruded vertically and horizontally on the thin steel plate, and the dowels are used to enhance the adhesion of the concrete slab to the thin steel plate and improve the strength of the slab. I have. [0003] However, in recent years, there has been a plan to provide a bridge in the bay, and it is expected that a large external force will be applied to such a bridge due to wind, waves, and the like.
When a floor slab is used to form the road surface of a bridge to which such a large external force is applied, some people point out that the conventional slab has some problems in strength. That is, when an external force is applied, a force acts to peel the thin steel sheet from the concrete plate, and in response to this, a force acts to locally prevent the peeling of the thin steel sheet at the dowel projecting portion. However, if the external force is large, the periphery of the thin steel plate at the protruding part of the dowel is locally deformed. Then, since the thin steel sheet easily peels off from the concrete plate from the deformed portion, there is a problem that the strength of the floor slab is reduced as a result. [0004] In view of the above circumstances, it is an object of the present invention to provide a slab of higher strength than ever before. [0005] The floor slab of claim 1 is
A steel plate, a concrete slab formed on one surface side of the steel plate, and a floor slab including a plurality of protrusions protruding on one surface side of the steel plate, and a dowel embedded inside the concrete plate, A bowl shape is formed between the dowel and the steel plate.
The bowl-shaped load dispersing member is provided with a dowel connecting surface on the upper surface side to which the dowel is connected, and a steel plate connection on the opening end side to which the steel plate is connected. And a gap between both ends of the steel plate connecting surface in the steel plate extending direction is larger than a gap between both ends of the dowel connecting surface in the steel plate extending direction. According to the present invention, the distance between both ends of the load distributing member in the direction in which the steel plate extends in the steel plate connection surface is provided so as to be larger than the distance between both ends in the direction in which the steel plate extends in the steel plate connection direction. So, the force that tries to prevent the peeling of the steel plate by the dowel is
Compared to the case where the dowel is directly connected to the steel plate, it acts to be dispersed and transmitted to the steel plate. An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 is an overall view showing the floor slab of the present invention. As shown in FIG. 5, the floor slab 100 is provided on the bridge girder 4. The floor slab 100 is composed of a left piece 100a and a right piece 100b symmetrical about the bridge girder 4, and the left piece 100a and the right piece 100b each have a rectangular thin steel plate 1. On the upper surface (the upper surface in FIG. 5) of the thin steel plate 1,
a is formed, and a rectangular concrete slab 2 is attached to the attachment surface 1 a so as to overlap with the thin steel plate 1.
Inside the concrete slab 2, a plurality of rebars 3 are arranged in the length and width directions of the concrete slab 2, and the left piece 100 a and the right piece 100 b of the floor slab 100 are each piece 100 a, 100
The reinforcing bars 3 (distributing bars) provided so as to be shared among the reinforcing bars 3 disposed inside b are integrated. A plurality of dowels 10 provided on the attachment surface 1a side of the thin steel plate 1 are embedded in the concrete slab 2. [0008] Between the dowel 10 and the attachment surface 1a, FIG.
As shown in FIG. 2 and FIG. 2, a load distribution member 30 formed in a bowl shape is provided with its open end facing the attachment surface 1a of the thin steel sheet 1, and the load distribution member 30 has a dowel 10 on its upper surface. Has a dowel connection surface 31 connected to the. Also,
At the open end of the load distribution member 30, the attachment surface 1a of the thin steel plate 1
Is formed, and the interval D1 between both ends of the steel plate connecting surface 32 in the extending direction of the thin steel plate 1 is provided larger than the interval D2 between both ends of the dowel connecting surface 31 in the extending direction of the thin steel plate 1. Have been. Since the floor slab 100 and the like have the above configuration, the distance D1 between both ends of the steel plate connecting surface 32 of the load distribution member 30 in the extending direction of the thin steel plate 1 is set to be equal to that of the dowel connecting surface 31. Is provided so as to be larger than the distance D2 between both ends in the direction, the force for preventing the peeling of the thin steel sheet 1 by the dowel 10 is more dispersed than when the dowel 10 is directly connected to the thin steel sheet 1. And transmitted to the thin steel sheet 1. Therefore, it is possible to prevent a large force from acting locally on the thin steel plate 1. Accordingly, it is possible to prevent the conventional steel plate 1 from being deformed in the vicinity of the protruding portion of the thin steel plate 1 and the concrete plate 2
Can prevent the thin steel sheet 1 from peeling off
A decrease in the strength of the floor slab 100 can be prevented. Therefore,
The floor slab 100 of the present invention has higher strength than before. The load distribution member 30 in the above embodiment is
Needless to say, the thin steel plate 1 may be formed and provided so as to protrude in a bowl shape from the concrete plate 2 side. Also,
FIG. 3 shows a load distribution member 40 having a shape different from the load distribution member 30 in place of the load distribution member 30 in the above embodiment.
FIG. 4 is a view showing another embodiment in which a load distribution made of an angle material is provided between the dowel 10 and the attachment surface 1a as shown in FIGS. 3 and 4, as shown in FIG. Member 4
0 is provided face down on the attachment surface 1a of the thin steel sheet 1,
On the upper surface of the load distribution member 40, a plurality of dowel connection surfaces 41 connected to the dowel 10 are formed at predetermined intervals in the extending direction of the load distribution member 40. The forked lower end of the load distribution member 40 is connected to the thin steel plate 1 respectively.
The steel plate connecting surface 42 connected to the attachment surface 1a of the steel plate 1 is formed.
3 is provided to be larger than the interval D4 between both ends of the dowel connection surface 41 in the direction in which the thin steel plate 1 extends. Therefore, in this embodiment, in addition to the effects shown in the above-described embodiment, by connecting a plurality of dowels 10 to the load distribution member 40 in advance, a plurality of Can be easily applied to the thin steel plate 1. As described above, according to the present invention,
The force to prevent peeling of the steel plate by the dowel is dispersed and transmitted to the steel plate, compared to the conventional case where the dowel is directly connected to the steel plate, so that a large force does not act locally on the steel plate. It can be. Therefore, it is possible to prevent the conventional deformation around the protruding portion of the steel plate around the dowel and to prevent the thin steel plate from peeling off from the concrete slab, so that it is possible to prevent a decrease in the strength of the floor slab. Therefore, the floor slab of the present invention has higher strength than before.
【図面の簡単な説明】
【図１】 本発明の床版におけるジベル周辺を示す側面
断面図である。
【図２】 図１のジベル及びカップ部材を示す平面図で
ある。
【図３】 本発明の別の実施例におけるジベル周辺を示
す側面断面図である。
【図４】 図３のジベル及びカップ部材を示す平面図で
ある。
【図５】 本発明の床版を示す全体図である。
【符号の説明】
１…薄鋼板（鋼板）、１ａ…付着面（一方の面）、２…
コンクリート版、１０…ジベル、３０…荷重分散部材、
３１…ジベル接続面、３２…鋼板接続面、４０…荷重分
散部材、４１…ジベル接続面、４２…鋼板接続面、１０
０…床版、Ｄ１、Ｄ３…鋼板接続面両端の間隔、Ｄ２、
Ｄ４…ジベル接続面両端の間隔。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing the vicinity of a dowel in a floor slab of the present invention. FIG. 2 is a plan view showing a dowel and a cup member of FIG. 1; FIG. 3 is a side sectional view showing the periphery of a dowel in another embodiment of the present invention. FIG. 4 is a plan view showing the dowel and cup member of FIG. 3; FIG. 5 is an overall view showing a floor slab of the present invention. [Description of Signs] 1 ... thin steel plate (steel plate), 1a ... adhesion surface (one surface), 2 ...
Concrete slab, 10 ... Gibel, 30 ... Load distribution member,
31: Dowel connection surface, 32: Steel plate connection surface, 40: Load distribution member, 41: Dowel connection surface, 42: Steel plate connection surface, 10
0: floor slab, D1, D3: gap between both ends of steel plate connection surface, D2,
D4: Interval between both ends of the dowel connection surface.
Claims (1)
（１ａ）側に形成されたコンクリート版（２）と、前記
鋼板（１）の一方の面（１ａ）側に複数突設され、前記
コンクリート版（２）内部に埋設されたジベル（１０）
とを具備する床版（１００）であって、 前記ジベル（１０）と前記鋼板（１）との間に、碗状に
形成された荷重分散部材（３０）が設けられ、 前記碗状に形成された荷重分散部材（３０）は、前記ジ
ベル（１０）が接続する上面側のジベル接続面（３１）
と、前記鋼板（１）が接続する開口端側の鋼板接続面
（３２）とを備え、 前記鋼板接続面（３２）の前記鋼板延在方向の両端の間
隔（Ｄ１）が、前記ジベル接続面（３１）の前記鋼板延
在方向の両端の間隔（Ｄ２）より大なることを特徴とす
る床版。(57) Claims 1. A steel plate (1), a concrete plate (2) formed on one surface (1a) side of the steel plate (1), and a steel plate (1). A plurality of dowels (10) projecting from one surface (1a) and buried inside the concrete slab (2)
A slab (100) comprising bets, between the dowel (10) and the steel plate (1), the bowl-shaped
A load distributing member (30) formed is provided, and the load distributing member (30) formed in a bowl shape has a dowel connection surface (31) on the upper surface to which the dowel (10) is connected.
And a steel plate connection surface (32) on the open end side to which the steel plate (1) is connected. The distance (D1) between both ends of the steel plate connection surface (32) in the steel plate extending direction is the dowel connection surface. (31) The floor slab, which is larger than the interval (D2) between both ends in the steel sheet extending direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13465294A JP3388024B2 (en) | 1994-06-16 | 1994-06-16 | Floor plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13465294A JP3388024B2 (en) | 1994-06-16 | 1994-06-16 | Floor plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH084169A JPH084169A (en) | 1996-01-09 |
| JP3388024B2 true JP3388024B2 (en) | 2003-03-17 |
Family
ID=15133385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13465294A Expired - Fee Related JP3388024B2 (en) | 1994-06-16 | 1994-06-16 | Floor plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3388024B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100032A (en) * | 2014-08-06 | 2014-10-15 | 安徽水利开发股份有限公司 | Floor structure |
-
1994
- 1994-06-16 JP JP13465294A patent/JP3388024B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH084169A (en) | 1996-01-09 |
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