JP4141929B2 - Floor slab connection structure - Google Patents

Floor slab connection structure Download PDF

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JP4141929B2
JP4141929B2 JP2003338381A JP2003338381A JP4141929B2 JP 4141929 B2 JP4141929 B2 JP 4141929B2 JP 2003338381 A JP2003338381 A JP 2003338381A JP 2003338381 A JP2003338381 A JP 2003338381A JP 4141929 B2 JP4141929 B2 JP 4141929B2
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support plate
floor slab
housing
reinforcing fiber
fiber sheet
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JP2005105599A (en
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信吉 村上
敏和 竹田
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日鉄コンポジット株式会社
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Description

本発明は、例えば、高架道路における床版を伸縮自在に接続する床版連結部の構造に関するものである。   The present invention relates to, for example, a structure of a floor slab coupling portion that connects a floor slab on an elevated road in a stretchable manner.

本件特許出願人は、特許文献1、更には、特許文献2〜4などに示すように、橋梁(床版)の伸縮を吸収緩和するための床版伸縮連結装置を提案し、実際に使用して好結果を得ている。図7を参照して床版連結部100の構造を簡単に説明すると、次の通りである。   The present patent applicant has proposed and actually used a floor slab telescopic connection device for absorbing and relaxing the expansion and contraction of a bridge (floor slab), as shown in Patent Document 1, and further Patent Documents 2 to 4 and the like. It is getting good results. The structure of the floor slab connecting portion 100 will be briefly described with reference to FIG.

つまり、床版連結部100に設置される床版伸縮連結装置1は、隣り合った遊間部Gの両側に位置した床版101(101A、101B)の端縁部の少なくとも床版舗装材(アスファルト)300を除去し、露出した躯体コンクリート201上に、本例では、不陸調整材202を介して設置された支持板10(10A、10B)と、この支持板10(10A、10B)の間に延在して、例えば取付板20(20A、20B)及びボルト30にて支持板10(10A、10B)に一体に固定され、固定された部分以外は可撓性を有している強化繊維シート3と、を有している。又、強化繊維シート3の可撓性を有した部分は、床版101(101A、101B)の遊間部Gにて下方に垂下して延在する湾曲部3Aとされ、床版101(101A、101B)の移動と共に、伸縮可能とされる。   That is, the floor slab expansion / contraction coupling device 1 installed in the floor slab coupling unit 100 has at least a floor slab paving material (asphalt) at the edge of the floor slab 101 (101A, 101B) located on both sides of the adjacent gap part G. ) 300 is removed, and in this example, between the support plate 10 (10A, 10B) and the support plate 10 (10A, 10B) installed on the exposed concrete body 201 via the unevenness adjusting material 202. For example, the reinforcing fiber is integrally fixed to the support plate 10 (10A, 10B) with the mounting plate 20 (20A, 20B) and the bolt 30 and has flexibility except for the fixed portion. And a sheet 3. Further, the flexible portion of the reinforcing fiber sheet 3 is a curved portion 3A that hangs downward and extends at the gap portion G of the floor slab 101 (101A, 101B). With the movement of 101B), it can be expanded and contracted.

その後、このようにして床版101(101A、101B)に固定設置された床版伸縮連結装置1の上方を覆って、隣接する舗装材300の表面高さまで連結部被覆材210(210A、210B)が打設される。連結部被覆材210(210A、210B)としては、ゴムアスファルト、又は、ウレタン樹脂モルタル若しくはMMA樹脂モルタルなどの連結部被覆樹脂モルタルが使用されている。   Thereafter, the connecting portion covering material 210 (210A, 210B) is covered up to the surface height of the adjacent pavement material 300, covering the upper portion of the floor slab expansion and contraction connecting device 1 fixedly installed on the floor slab 101 (101A, 101B) in this way. Will be placed. As the connecting portion covering material 210 (210A, 210B), a connecting portion covering resin mortar such as rubber asphalt or urethane resin mortar or MMA resin mortar is used.

斯かる床版連結部100は、高強度、高弾性率、且つ変形性能に優れた強化繊維シート3を用いた床版伸縮連結装置1を使用し、その上に連結部被覆材210を打設し、路面高さを床版舗装面高さと一致させて埋設され、且つ連結部被覆材210及び強化繊維シート3などが有する優れた防振特性を利用することができ、車両通行に伴って発生する騒音を低減し、しかも、耐摩耗性、耐衝撃性、補修での開放性に優れているという利点を有している。   Such a floor slab connecting portion 100 uses the floor slab expansion and contraction connecting device 1 using the reinforcing fiber sheet 3 having high strength, high elastic modulus, and excellent deformability, and a connecting portion covering member 210 is placed thereon. The road surface height is equal to the floor slab paved surface height, and the excellent vibration-proof characteristics of the connecting portion covering material 210 and the reinforcing fiber sheet 3 can be used, and it occurs when the vehicle passes. In addition, it has the advantage of reducing wear noise and being excellent in wear resistance, impact resistance and openness in repair.

また、連結部被覆材210は、床版101(101A、101B)の遊間部Gに相当する位置には、図示するように、他の位置に配置した連結部被覆材210Bより伸縮性に優れた材料から成る連結部被覆材210Aを打設することも提案されている。   Moreover, the connection part coating | coated material 210 was excellent in the stretching property in the position equivalent to the loose part G of the floor slab 101 (101A, 101B) than the connection part coating | coated material 210B arrange | positioned in another position so that it may show in figure. It has also been proposed to cast the connecting portion covering material 210A made of a material.

しかしながら、本発明者らの更なる研究実験の結果によれば、上記構成の床版連結部100は次のような問題があることが分かった。   However, according to the results of further research and experiments by the present inventors, it has been found that the floor slab connecting portion 100 having the above configuration has the following problems.

つまり、図7に示すような従来の床版連結部100においては、床版伸縮連結装置1の支持板10(10A、10B)は、不陸調整材202を介して床版101(101A、101B)の遊間部Gの両側に対向して配置された躯体、即ち、両コンクリート201、201の上面に設置される平坦な取付部11と、該取付部11に連接した湾曲部12とを有し、湾曲部12は、不陸調整材202の端面角部の湾曲(半径R0)に沿って密着配置されている。   In other words, in the conventional floor slab coupling portion 100 as shown in FIG. ) Of the gap portion G) facing each side of the gap portion G, that is, a flat mounting portion 11 installed on the upper surfaces of both concrete 201, 201, and a curved portion 12 connected to the mounting portion 11. The curved portion 12 is closely disposed along the curvature (radius R0) of the end surface corner portion of the unevenness adjusting material 202.

ところが、夏場において、床版伸縮連結装置1にて連結された両床版101A、101Bは膨張し、そのためコンクリート201上の床版舗装材、即ち、アスファルト300により、アスファルト300と同じ高さまで打設された連結部被覆材210(210A、210B)が圧縮される。   However, in the summer, the two floor slabs 101A and 101B connected by the floor slab expansion and contraction connecting device 1 expand, so that the floor slab paving material on the concrete 201, that is, asphalt 300, is driven to the same height as the asphalt 300. The connected connecting portion covering material 210 (210A, 210B) is compressed.

圧縮された連結部被覆材210(210A、210B)は、支持板10(10A、10B)及び強化繊維シート3の湾曲部3Aを下方へと押圧することとなる。しかしながら、両支持板10(10A、10B)の取付部11及び湾曲部12は、不陸調整材202上に、特に支持板10(10A、10B)の湾曲部12は、不陸調整材202の端面角部の湾曲(半径R0)に沿って密着配置されており、圧縮された連結部被覆材210(210A、210B)からの押圧力で変形することはない。また、強化繊維シート3の湾曲部3Aは、圧縮された連結部被覆材210の押圧力にて変形するような弾性材ではない。   The compressed connecting portion covering material 210 (210A, 210B) presses the support plate 10 (10A, 10B) and the curved portion 3A of the reinforcing fiber sheet 3 downward. However, the mounting portion 11 and the curved portion 12 of both the support plates 10 (10A, 10B) are on the non-land adjuster 202, and in particular, the curved portion 12 of the support plate 10 (10A, 10B) is the non-land adjuster 202. It is closely arranged along the curvature (radius R0) of the end face corner, and is not deformed by the pressing force from the compressed connecting portion covering material 210 (210A, 210B). Further, the curved portion 3 </ b> A of the reinforcing fiber sheet 3 is not an elastic material that is deformed by the pressing force of the compressed connecting portion covering material 210.

従って、隣接するアスファルト300部分にて両側から押圧されて圧縮された連結部被覆材210(210A、210B)は、連結部被覆材210(210A、210B)の上面を変形させることにより押圧力を解放せざるを得ない。そのために、特に、夏場において、床版連結部100において、床版伸縮連結装置1の上方路面が盛り上がり、床版連結部100の平坦性を損なうこととなり、車両の通行時に大きな騒音、振動を発生するなどの問題が生じた。
特開2001−152407号公報 特願2001−321235 特願2002−121432 特願2002−164965
Therefore, the connecting portion covering material 210 (210A, 210B) compressed by being pressed from both sides in the adjacent asphalt 300 portion releases the pressing force by deforming the upper surface of the connecting portion covering material 210 (210A, 210B). I have to. Therefore, especially in the summer, the floor surface of the floor slab expansion and contraction coupling device 1 rises in the floor slab coupling part 100, which impairs the flatness of the floor slab coupling part 100, and generates large noise and vibration when the vehicle passes. A problem occurred.
JP 2001-152407 A Japanese Patent Application No. 2001-321235 Japanese Patent Application No. 2002-121432 Japanese Patent Application No. 2002-164965

従って、本発明の目的は、強化繊維シートを有した床版伸縮連結装置を備えており、高伸縮性能を有し、防振特性に優れていると共に、特に、夏場において路面の盛り上がりを防止し、車両の通行に伴う振動、騒音の発生を低減することのできる床版連結部の構造を提供することである。   Accordingly, an object of the present invention is to provide a floor slab expansion / contraction coupling device having a reinforcing fiber sheet, to have high expansion / contraction performance and excellent vibration-proof characteristics, and to prevent the road surface from rising particularly in summer. An object of the present invention is to provide a structure of a floor slab connecting portion that can reduce the occurrence of vibration and noise associated with the passage of a vehicle.

上記目的は本発明に係る床版連結部の構造にて達成される。要約すれば、本発明は、床版の連結部において遊間部の両側に位置した躯体にそれぞれ取付けられる支持板と、伸縮可能の湾曲部を有し、前記両支持板に少なくとも一部が接合された強化繊維シートと、を有する床版伸縮連結装置が設置された床版連結部の構造において、
前記躯体は、前記支持板を取り付ける平面部と、前記躯体の遊間部に対面した側であって前記平面部と段差なく円滑に連接して形成された湾曲角部と、を有し、
前記支持板は、前記躯体の平面部に取り付けられる取付部と、該取付部に段差なく円滑に連接し、そして、前記躯体の湾曲角部に沿って且つこの湾曲角部とは離間して配置された、前記強化繊維シート湾曲部へと延在した先端部領域と、を有し、
前記支持板の前記先端部領域は、弾性変形可能の自由端とされ、
前記支持板の前記先端部領域の自由端先端は、前記床版連結装置を躯体に取り付けた状態にて連結部被覆材を打設して前記支持板に負荷をかけることにより、躯体側に近づく方向に0〜20mmの範囲で弾性変形した状態に設置され、
前記弾性変形された前記支持板の前記先端部領域の自由端先端は、前記床版伸縮装置の伸縮に対応して、前記支持板の自由端先端が躯体側に近づく方向へと更に0〜20mmの範囲で弾性変形可能とされ、且つ、前記支持板の自由端先端が躯体側から離れる方向へと、0〜20mmの範囲で弾性変形可能とされることを特徴とする床版連結部の構造である。
The above object is achieved by the structure of the floor slab connecting portion according to the present invention. In summary, the present invention includes a support plate that is attached to each of the casings located on both sides of the gap portion in the connecting portion of the floor slab, and a stretchable curved portion, at least a part of which is joined to the both support plates. In the structure of the floor slab connecting portion in which the floor slab expansion and contraction connecting device having the reinforcing fiber sheet is installed,
The housing includes a flat portion to which the support plate is attached, and a curved corner portion formed on the side facing the play portion of the housing and smoothly connected to the flat portion without a step,
The support plate is smoothly connected to the mounting portion attached to the flat portion of the housing without any step, and is disposed along the curved corner portion of the housing and apart from the curved corner portion. A distal end region extending to the reinforcing fiber sheet curved portion,
The tip region of the support plate is an elastically deformable free end,
The free end tip of the tip region of the support plate approaches the housing side by placing a connecting portion covering material in a state where the floor slab connecting device is attached to the housing and applying a load to the support plate. Installed in a state of elastic deformation in the range of 0-20 mm in the direction,
The free end tip of the tip end region of the support plate that has been elastically deformed further corresponds to the expansion and contraction of the floor slab stretching device, and the free end tip of the support plate further approaches 0 to 20 mm in a direction approaching the housing side. The structure of the floor slab connecting portion is characterized in that it can be elastically deformed in the range of 0 and 20 mm and can be elastically deformed in the range of 0 to 20 mm in the direction in which the free end of the support plate is away from the housing side. It is.

本発明の一実施態様によると、前記支持板は、鋼板、FRP板、或いは、高強度プラスチック板にて作製される。   According to an embodiment of the present invention, the support plate is made of a steel plate, an FRP plate, or a high-strength plastic plate.

以上説明したように、本発明の床版連結部の構造によれば、高伸縮性能を有し、防振特性に優れていると共に、特に、夏場において路面の盛り上がりを防止し、車両の通行に伴う振動、騒音の発生を低減することができる。   As described above, according to the structure of the floor slab connecting portion of the present invention, it has high stretchability and excellent vibration-proof characteristics, and in particular, prevents the road surface from rising during summer, and allows the vehicle to pass. The accompanying vibration and noise can be reduced.

以下、本発明に係る床版連結部の構造を図面に則して更に詳しく説明する。   Hereinafter, the structure of the floor slab connecting portion according to the present invention will be described in more detail with reference to the drawings.

実施例1
図1を参照すると、本発明の一実施例に係る床版連結部100の構造が示される。本実施例では、床版連結部100は、高架道路にて横目地部空隙(遊間部)Gを介して位置する2つの床版101(101A、101B)の伸縮を吸収緩和するための連結部であるとする。
Example 1
Referring to FIG. 1, the structure of a floor slab connecting part 100 according to an embodiment of the present invention is shown. In the present embodiment, the floor slab connecting part 100 is a connecting part for absorbing and relaxing expansion and contraction of the two floor slabs 101 (101A, 101B) located via the horizontal joint gap (gap part) G on the elevated road. Suppose that

先ず、本実施例にて使用される床版伸縮連結装置1について説明する。床版伸縮連結装置1は、各床版101A、101Bの幅方向に延在し、両床版101A、101Bの間隔Gを挟んで、両側に対向配置された支持板10(10A、10B)を有する。本明細書にて、床版101A、101Bの幅方向とは、床版101A、101Bにおける車両等の走行方向に対して直交する方向をいう。   First, the floor slab telescopic connection device 1 used in this embodiment will be described. The floor slab expansion and contraction connecting device 1 extends in the width direction of the floor slabs 101A and 101B, and has support plates 10 (10A and 10B) disposed opposite to each other with a gap G between both floor slabs 101A and 101B interposed therebetween. Have. In this specification, the width direction of the floor slabs 101A and 101B refers to a direction orthogonal to the traveling direction of the vehicle or the like on the floor slabs 101A and 101B.

両支持板10A、10Bは、同じ形状とすることができる。各支持板10A、10Bは、床版101A、101Bの遊間部G(幅W0)の両側に対向して配置された躯体、即ち、両コンクリート201、201の上面に設置される平坦状の取付部11と、該取付部11に連接し、両コンクリート201の遊間部Gの方へと突出して延在し、本実施例では、下方に湾曲した湾曲状の先端部領域12と、を有する。 Both support plates 10A and 10B can have the same shape. Each of the support plates 10A and 10B is a flat installation that is installed on the upper surface of both the concrete 201 and 201, ie, a frame disposed opposite to both sides of the gap portion G (width W 0 ) of the floor slabs 101A and 101B. It has a portion 11 and a curved tip end region 12 that is connected to the mounting portion 11 and protrudes and extends toward the gap portion G of both concrete 201 and is curved downward in this embodiment.

両支持板10A、10Bの上面には、強化繊維シート3が一体的に取り付けられる。   The reinforcing fiber sheet 3 is integrally attached to the upper surfaces of the support plates 10A and 10B.

つまり、強化繊維シート3は、少なくとも一部が両支持板10A、10Bの取付部11の上に接合された両端部3Bと、各支持板10A、10Bの湾曲先端部領域12に添って下方へと延在し、更に、下方へとU字形状に所定の半径(R)にて湾曲した伸縮湾曲部3Aとを有する。   That is, the reinforcing fiber sheet 3 is downward along the both end portions 3B joined at least partially on the attachment portions 11 of the support plates 10A and 10B and the curved tip end region 12 of the support plates 10A and 10B. And a telescopic bending portion 3A that is curved downward in a U-shape with a predetermined radius (R).

強化繊維シート3の両端部3Bは、上述のように、少なくとも一部が支持板10A、10Bの取付部11に一体に接合されるが、伸縮湾曲部3Aは、支持板10A、10Bに接合されることはなく、支持板先端部領域12に添って下方へと湾曲し、両コンクリート201、201間の伸縮に対応して伸び縮みする。   As described above, at least a part of both end portions 3B of the reinforcing fiber sheet 3 is integrally joined to the mounting portions 11 of the support plates 10A and 10B, but the stretchable bending portion 3A is joined to the support plates 10A and 10B. In other words, it curves downward along the support plate tip region 12 and expands and contracts corresponding to the expansion and contraction between the concretes 201 and 201.

次に、図1及び図2を参照して、更に詳しく、本発明に従って構成される床版連結部100の構造及びその施工方法について説明する。   Next, with reference to FIG.1 and FIG.2, the structure of the slab connection part 100 comprised according to this invention and its construction method are demonstrated in detail.

支持板の取り付け
図1にて、少なくとも、遊間部Gにおける床版101A、101Bの躯体(コンクリート)201の端縁部上面は、床版伸縮連結装置1が十分設置できる程度の幅及び長さにわたって床版舗装材、即ち、アスファルト300が除去される。本実施例では、遊間部Gのコンクリート201の遊間幅(W0)は62mmとされた。又、床版101A、101Bは、端面からの長さ(LW1)が359mmとされ、従って、長さ(LW2)が780mmとなるようにアスファルト300を除去し、コンクリート201を露出した。
In FIG. 1, at least the upper surface of the edge portion of the frame (concrete) 201 of the floor slabs 101A and 101B in the gap portion G has a width and length that allow the floor slab expansion and contraction coupling device 1 to be sufficiently installed. The floor slab paving material, that is, asphalt 300 is removed. In this example, the gap width (W 0 ) of the concrete 201 in the gap portion G was 62 mm. Further, the floor slabs 101A and 101B had a length (LW1) from the end surface of 359 mm, and therefore the asphalt 300 was removed so that the length (LW2) was 780 mm, and the concrete 201 was exposed.

更に、本実施例では、露出したコンクリートを、既設の床版筋203及び通し筋204が露出するまで、本実施例では、70mm程度の深さまでハツリ(削り)、コンクリートを除去した。   Further, in this example, until the existing floor slab reinforcement 203 and the through reinforcement 204 are exposed, the exposed concrete is scraped (cut) to a depth of about 70 mm and the concrete is removed.

その後、この部分に、例えばMMA樹脂モルタルのような不陸調整材202を打設し、不陸の修正を行なうと共に、下部支持板10(10A、10B)を設置した。   After that, for example, an unevenness adjusting material 202 such as MMA resin mortar was placed in this portion to correct the unevenness, and the lower support plate 10 (10A, 10B) was installed.

不陸調整材202としては、MMA樹脂、ビニルエステル樹脂若しくはエポキシ樹脂などの熱硬化性樹脂を用いた樹脂モルタルの他に、ポリマーセメントモルタル、速硬セメントモルタル若しくはコンクリートなどの無機系材料、又は、アスファルト系材料などを好適に使用し得る。   As the unevenness adjusting material 202, in addition to a resin mortar using a thermosetting resin such as MMA resin, vinyl ester resin or epoxy resin, an inorganic material such as polymer cement mortar, fast-hardening cement mortar or concrete, or Asphalt materials and the like can be suitably used.

本実施例に従えば、図2をも参照するとより良く理解されるように、不陸調整材202にて形成される下部支持板10(10A、10B)を取り付けるための躯体表面には、支持板取り付け平面部211が形成される。また、躯体201の遊間部Gに対面した側の端面角部は、半径R0の湾曲形状とされ、この湾曲角部212は、支持板取り付け平面部211と段差なく円滑に連接するように成形される。   According to the present embodiment, as will be better understood with reference also to FIG. 2, the surface of the housing for attaching the lower support plate 10 (10 </ b> A, 10 </ b> B) formed by the unevenness adjusting material 202 is supported on A plate mounting flat portion 211 is formed. In addition, the end face corner portion of the housing 201 facing the play gap G has a curved shape with a radius R0, and the curved corner portion 212 is shaped so as to be smoothly connected to the support plate mounting flat surface portion 211 without a step. The

本実施例では、上述のように、下部支持板10(10A、10B)は、不陸調整材202を介してコンクリート躯体201に取り付けるものとして説明したが、もし、不陸調整材202を使用しない場合には、下部支持板10(10A、10B)は、コンクリート躯体201に直接取り付けることもできる。勿論、この場合には、コンクリート躯体自体に、下部支持板10(10A、10B)を取り付けるための平面部211と、湾曲角部212が形成される。   In the present embodiment, as described above, the lower support plate 10 (10A, 10B) has been described as being attached to the concrete housing 201 via the uneven land adjuster 202. However, the uneven land adjuster 202 is not used. In some cases, the lower support plate 10 (10A, 10B) can be directly attached to the concrete housing 201. Of course, in this case, the flat portion 211 and the curved corner portion 212 for attaching the lower support plate 10 (10A, 10B) are formed on the concrete casing itself.

支持板の構造
支持板10(10A、10B)は、対称配置されるが、本実施例では、同じ形状とされ、通常、鋼板にて作製される。ただ、これに限定されるものではない。例えば、FRP板、高強度プラスチック板などとすることもできる。
The structure of the support plate 10 (10A, 10B) is symmetrically arranged, but in this embodiment, it has the same shape and is usually made of a steel plate. However, it is not limited to this. For example, an FRP plate or a high-strength plastic plate can be used.

支持板10(10A、10B)は、図4、図5に示すように、支持板10を躯体表面平面部211に、本実施例では不陸調整材202にて形成される平面部211を介して躯体表面に取り付けるための矩形状をした平坦状の取付部11と、この取付部11に段差なく円滑に連接し、躯体表面湾曲角部212に沿って、且つ、湾曲角部212の表面とは離間して強化繊維シート湾曲部3Aへと下方に湾曲して延在した先端部領域12と、を有する。   As shown in FIGS. 4 and 5, the support plate 10 (10 </ b> A, 10 </ b> B) is provided with the support plate 10 on the housing surface flat surface portion 211, and in this embodiment, the flat surface portion 211 formed by the unevenness adjusting material 202. A flat mounting portion 11 having a rectangular shape for mounting on the surface of the housing, and smoothly connecting to the mounting portion 11 without a step, along the curved surface corner portion 212 of the housing surface and the surface of the curved corner portion 212. Has a distal end region 12 that is spaced apart and extends downwardly toward the reinforcing fiber sheet curved portion 3A.

本実施例では、先端部領域12は、半径R1とされ、その延在長さ(L3)(図5)は、半径R1程度とされる。即ち、本実施例では、先端部領域12は、半径R1とされる円の4分の1円周分にわたっている。   In the present embodiment, the distal end region 12 has a radius R1, and its extension length (L3) (FIG. 5) is about the radius R1. That is, in the present embodiment, the tip end region 12 extends over a quarter circumference of a circle having a radius R1.

取付部11の下方には、カプラー13を介してアンカーバー14が取り付けられている。カプラー13は、取付部11と連通してねじ穴15が形成されている。ねじ穴15は、後述する強化繊維シート取付板20(20A、20B)の取り付けに利用される。ただ、取付板20を取り付けるまでは、工事中にねじ穴15に異物が入らないように、ボルト30が仮螺着されている。アンカーバー14は、支持板10の長手方向に沿って、所定間隔にて、任意の数配置される。   An anchor bar 14 is attached below the attachment portion 11 via a coupler 13. The coupler 13 communicates with the mounting portion 11 and has a screw hole 15 formed therein. The screw hole 15 is used for mounting a reinforcing fiber sheet mounting plate 20 (20A, 20B) described later. However, until the mounting plate 20 is attached, the bolt 30 is temporarily screwed so that no foreign matter enters the screw hole 15 during the construction. An arbitrary number of anchor bars 14 are arranged at predetermined intervals along the longitudinal direction of the support plate 10.

本発明に従えば、支持板10(10A、10B)は、その取付部11を、躯体表面の平面部211に適合させて取り付ける。   According to the present invention, the support plate 10 (10A, 10B) is attached by fitting the attachment portion 11 to the flat portion 211 on the surface of the housing.

また、支持板10(10A、10B)の先端部領域12は、その湾曲の半径R1が躯体の湾曲角部212の半径R0より大とされるので、更には、本実施例では、図2に示すように、躯体湾曲角部212の半径R0と、支持体10の先端領域12の湾曲半径R1とは、その半径R0、R1の中心X0、X1が、支持板10の取付部11と湾曲部12との連接部を通る直線X上に位置するように構成されているので、支持板10の先端部領域12は、躯体コンクリート201から、本実施例では、躯体表面に形成された不陸調整材202の湾曲表面から離間して配置され、先端部領域12と不陸調整材202との間には空間Sが形成される。   Further, the tip region 12 of the support plate 10 (10A, 10B) has a radius of curvature R1 larger than the radius R0 of the curved corner portion 212 of the housing. As shown, the radius R0 of the body curved corner 212 and the radius R1 of the tip region 12 of the support 10 are such that the centers X0 and X1 of the radii R0 and R1 are the mounting portion 11 and the curved portion of the support plate 10, respectively. 12 is configured so as to be positioned on a straight line X passing through the connecting portion with the rim 12, so that the tip end region 12 of the support plate 10 is adjusted from the concrete body 201 to the uneven surface formed in the skeleton surface in this embodiment. A space S is formed between the tip end region 12 and the unevenness adjusting material 202, being spaced apart from the curved surface of the material 202.

つまり、支持板10の先端部領域12は、躯体201或いは不陸調整材202などに固定されていない自由端とされ、従って、支持板10の先端部領域12に上方より押圧力が加わったときは、この先端部領域12は、空間Sにて、図1にて点線にて示すように、弾性的に変形可能とされる。この点に関しては、後で図2を参照して更に説明する。   That is, the tip end region 12 of the support plate 10 is a free end that is not fixed to the housing 201 or the unevenness adjusting material 202, and accordingly, when a pressing force is applied to the tip end region 12 of the support plate 10 from above. The tip end region 12 can be elastically deformed in the space S as shown by the dotted line in FIG. This point will be further described later with reference to FIG.

強化繊維シートの構造
次に、図6を参照して、床版伸縮連結装置を構成する強化繊維シート3について説明する。
Structure of Reinforcing Fiber Sheet Next, with reference to FIG. 6, the reinforcing fiber sheet 3 constituting the floor slab telescopic connection device will be described.

本実施例にて強化繊維シート3は、図示するように、略平行に所定距離だけ離間して配置された、幅(L2)、長さ(L1)とされる矩形状の取付板20(20A、20B)の裏面に一体に接着される。取付板20A、20Bは、本実施例では同じ形状とされ、通常、鋼板にて作製される。ただ、これに限定されるものではない。   In this embodiment, the reinforcing fiber sheet 3 is arranged in a rectangular shape with a width (L2) and a length (L1) 20A (20A) arranged in parallel and spaced apart by a predetermined distance. 20B) are integrally bonded to the back surface. The mounting plates 20A and 20B have the same shape in this embodiment, and are usually made of steel plates. However, it is not limited to this.

取付板20(20A、20B)の裏面には予めプライマを塗布しておくことが好ましい。次いで、強化繊維シート3側より樹脂を塗布し、強化繊維シート3の取付板20(20A、20B)との接合部にのみ樹脂を含浸させる。必要に応じて、更に他の強化繊維シート3を積層し、同様に取付板20(20A、20B)との接合部にのみ樹脂を含浸させる。   It is preferable to apply a primer in advance to the back surface of the mounting plate 20 (20A, 20B). Next, a resin is applied from the reinforcing fiber sheet 3 side, and the resin is impregnated only at the joint portion of the reinforcing fiber sheet 3 with the mounting plate 20 (20A, 20B). If necessary, another reinforcing fiber sheet 3 is further laminated, and the resin is impregnated only in the joint portion with the mounting plate 20 (20A, 20B).

このようにして所要枚数の強化繊維シート3を取付板20(20A、20B)の裏面に積層し、その後、樹脂を硬化する。これによって、強化繊維シート3は、取付板20(20A、20B)との接合部のみが硬化した強化繊維複合材となり、取付板20(20A、20B)に一体的に接合される。通常、取付板20(20A、20B)との接合における硬化した強化繊維複合材部分の厚さは、0.1〜5mmとされる。   In this way, the required number of reinforcing fiber sheets 3 are laminated on the back surface of the mounting plate 20 (20A, 20B), and then the resin is cured. Thereby, the reinforcing fiber sheet 3 becomes a reinforcing fiber composite material in which only the joint portion with the mounting plate 20 (20A, 20B) is cured, and is integrally bonded to the mounting plate 20 (20A, 20B). Usually, the thickness of the cured reinforcing fiber composite material portion in the joining with the mounting plate 20 (20A, 20B) is 0.1 to 5 mm.

一方、上述にて理解されるように、強化繊維シート3のその他の部分は、樹脂が含浸されておらず、伸縮可能とされる。   On the other hand, as understood above, the other portions of the reinforcing fiber sheet 3 are not impregnated with resin and can be expanded and contracted.

なお、強化繊維シート3は、取付板20(20A、20B)に一体に接合されるのであれば、上記接着するのに限定されるものではなく、任意の方法を採用し得る。勿論、強化繊維シート3は、必ずしも取付板20(20A、20B)にその両端部3Bが予め接合されている必要はなく、両端部3Bを支持板10(10A、10B)と取付板20(20A、20B)との間に挟持し、ボルト30にて固定することも可能である。   Note that the reinforcing fiber sheet 3 is not limited to the above bonding as long as it is integrally joined to the mounting plate 20 (20A, 20B), and any method can be adopted. Of course, both ends 3B of the reinforcing fiber sheet 3 are not necessarily bonded to the mounting plate 20 (20A, 20B) in advance, and the both ends 3B are connected to the support plate 10 (10A, 10B) and the mounting plate 20 (20A). 20B) and can be fixed with bolts 30.

又、取付板20(20A、20B)には、強化繊維シート3をも貫通して形成された、支持板10に取り付けるための取り付け穴22が設けられている。   The mounting plate 20 (20A, 20B) is provided with mounting holes 22 that are formed through the reinforcing fiber sheet 3 and are attached to the support plate 10.

強化繊維シート3は、強化繊維を一方向に配列してシート状とするか、或いは、強化繊維を織成した織物とされる。又、強化繊維としては、ポリパラフェニレンベンズビスオキサゾール(PBO)繊維を好適に使用することができる。強化繊維は、PBO繊維のみに限定されるものではなく、その他に、ガラス繊維;アラミド、ナイロン、ポリエステル、ポリアリレート、ポリアセタール、ポリオレフィンなどの有機繊維;ボロン、チタン、スチールなどの金属繊維;などを一種、又は複数種混入したハイブリッドタイプのものを使用することもできる。   The reinforcing fiber sheet 3 is formed into a sheet shape by arranging reinforcing fibers in one direction, or a woven fabric in which reinforcing fibers are woven. Further, as the reinforcing fiber, polyparaphenylene benzbisoxazole (PBO) fiber can be suitably used. Reinforcing fibers are not limited to PBO fibers, but also include glass fibers; organic fibers such as aramid, nylon, polyester, polyarylate, polyacetal, and polyolefin; metal fibers such as boron, titanium, and steel; One type or a hybrid type mixed with a plurality of types can also be used.

接着樹脂としては、常温硬化型或は熱硬化型のエポキシ樹脂、ポリエステル系樹脂、MMA樹脂などの熱硬化性樹脂、又、所望に応じてポリアミド樹脂、ポリカーボネート樹脂などの熱可塑性樹脂をも使用することができる。   As the adhesive resin, a thermosetting resin such as a room temperature curing type or a thermosetting type epoxy resin, a polyester resin, or an MMA resin, or a thermoplastic resin such as a polyamide resin or a polycarbonate resin may be used as desired. be able to.

強化繊維シートの取り付け
本実施例では、上述のようにして取付板20(20A、20B)に固着された強化繊維シート3は、次いで、両取付板20(20A、20B)をそれぞれ支持板10(10A、10B)の上に設置する。このとき、支持板10A、10Bのねじ穴15に螺着していたボルト30を取り外し、このねじ穴15を利用して、両取付板20A、20Bをそれぞれ下部支持板10A、10Bに、取り外したこのボルト30を利用して取り付ける。
Attachment of Reinforcing Fiber Sheet In this embodiment, the reinforcing fiber sheet 3 fixed to the attachment plate 20 (20A, 20B) as described above is then attached to both attachment plates 20 (20A, 20B) with the support plate 10 ( 10A, 10B). At this time, the bolts 30 screwed into the screw holes 15 of the support plates 10A and 10B were removed, and both mounting plates 20A and 20B were removed to the lower support plates 10A and 10B using the screw holes 15, respectively. The bolt 30 is used for attachment.

強化繊維シート3のサイズは、即ち、両取付板20A、20Bの間に延在する強化繊維シート3の長さ(LS3)は、両取付板20A、20Bを、支持板10A、10Bの上に設置したときに、図1に示すように、遊間部Gの下方へと強化繊維シート3が垂れ下がり、湾曲部3Aを形成するに十分な長さとされる。   The size of the reinforcing fiber sheet 3, that is, the length (LS3) of the reinforcing fiber sheet 3 extending between the two mounting plates 20A and 20B is such that both the mounting plates 20A and 20B are placed on the support plates 10A and 10B. When installed, as shown in FIG. 1, the reinforcing fiber sheet 3 hangs down below the gap G, and is long enough to form the curved portion 3A.

本実施例では、図1に示すように、各床版間の空隙(遊間部)Gが62mmであったので、強化繊維シート3は、両取付板20A、20Bの下面より下方へと60mmだけ垂下し、湾曲部の半径Rが30mmとなるように構成した。   In the present embodiment, as shown in FIG. 1, since the gap (interval portion) G between the floor slabs was 62 mm, the reinforcing fiber sheet 3 is only 60 mm downward from the lower surfaces of both mounting plates 20A and 20B. It hangs down, and it was comprised so that the radius R of a curved part might be set to 30 mm.

連結部被覆材の打設
次に、上記構成の床版伸縮連結装置1を覆って、即ち、取付板20A、20Bにて支持板10A、10Bに取り付けられた強化繊維シート3の上方部には、アスファルト300が除去されている領域(即ち、連結接続部)においてアスファルト部分300と同じ高さまで、連結部被覆材、例えばゴムアスファルト、又は、ウレタン樹脂モルタル若しくはMMA樹脂モルタルなどの連結部被覆樹脂モルタルが打設される。その時、下層部と上層部で樹脂材と、硅砂及び骨材との配合を変えながら厚みに対応していくことが好ましい。
Pouring of the connecting portion covering member then covers the deck telescopic coupling device 1 having the above configuration, i.e., the mounting plate 20A, the support plate 10A at 20B, the upper portion of the reinforcing fiber sheet 3 attached to 10B are In the region where the asphalt 300 is removed (that is, the connecting connection portion), the connecting portion covering material such as rubber asphalt, or the connecting portion covering resin mortar such as urethane resin mortar or MMA resin mortar is as high as the asphalt portion 300. Will be placed. At that time, it is preferable to correspond to the thickness while changing the composition of the resin material, cinnabar sand and aggregate in the lower layer portion and the upper layer portion.

本実施例によれば、連結部被覆材210(210A、210B)は、床版101A、101Bの遊間部Gに相当する位置に打設された第1の連結部被覆材210Aと、第1の連結部被覆材210Aに隣接して打設された第2の連結部被覆材210Bとにて構成し、第1の連結部被覆材210Aには、より伸縮性に優れた材料を使用した。   According to the present embodiment, the connecting portion covering material 210 (210A, 210B) includes the first connecting portion covering material 210A placed at a position corresponding to the idle space G of the floor slabs 101A, 101B, A second connecting portion covering material 210B placed adjacent to the connecting portion covering material 210A was used, and a material having higher stretchability was used for the first connecting portion covering material 210A.

例えば、第2の連結部被覆材210BとしてMMA樹脂モルタルを使用した場合には、特に図1に示すように、遊間部Gに相当する、本実施例では遊間部Gより若干幅広くされた部分、即ち、幅W1=80mmの第1の連結部被覆材210Aは、MMA樹脂モルタルより軟らかい樹脂モルタル、例えば、ウレタン樹脂モルタル若しくは軟質MMA樹脂モルタルを使用する。   For example, when MMA resin mortar is used as the second connecting portion covering material 210B, as shown in FIG. 1 in particular, the portion corresponding to the gap portion G, which is slightly wider than the gap portion G in this embodiment, That is, the first connecting portion covering material 210A having a width W1 = 80 mm uses a resin mortar softer than the MMA resin mortar, for example, a urethane resin mortar or a soft MMA resin mortar.

このように、強化繊維シート3を備えた床版伸縮連結装置1の上にゴムアスファルト或いは連結部被覆樹脂モルタルなどの被覆材210(210A、210B)を打設することにより路面高さを床版上面の舗装材300の高さと一致させることができ、しかも、強化繊維シート3、又、ゴムアスファルト或いは連結部被覆樹脂モルタルなどの被覆材210(210A、210B)は、防振特性に優れているために、車両の通行に伴って発生する騒音を著しく低減することができると共に、耐久性にも優れている。   Thus, the road surface height is set by placing the covering material 210 (210A, 210B) such as rubber asphalt or connecting portion covering resin mortar on the floor slab expansion and contraction connecting device 1 provided with the reinforcing fiber sheet 3. The covering material 210 (210A, 210B) such as the reinforcing fiber sheet 3 and the rubber asphalt or the connecting portion covering resin mortar is excellent in vibration-proofing characteristics. For this reason, the noise generated with the passage of the vehicle can be remarkably reduced, and the durability is also excellent.

支持板の初期設定位置
上述のように、支持板10(10A、10B)に強化繊維シート3が取り付けられた床版伸縮連結装置1は、支持板10(10A、10B)により躯体201に取り付けられ、連結部被覆材210が床版伸縮連結装置1を覆って打設される。
The initial setting position of the support plate As described above, the floor slab telescopic connection device 1 in which the reinforcing fiber sheet 3 is attached to the support plate 10 (10A, 10B) is attached to the housing 201 by the support plate 10 (10A, 10B). The connecting portion covering material 210 is placed so as to cover the floor slab telescopic connecting device 1.

本発明によれば、このように床版伸縮連結装置1を覆って連結部被覆材210を打設することにより、床版伸縮連結装置1の支持板10(10A、10B)には押圧力としての負荷がかかる。それによって、支持板10(10A、10B)の湾曲部12は、図2に点線で示すように、連結部被覆材210を打設する前の湾曲部12の位置から初期設定位置(即ち、湾曲部12aの位置)へと、支持体10の湾曲部12が躯体側へと弾性変形により移動した状態となる。このとき、移動量(g1)は、0〜20mmの範囲であるのが好ましい。   According to the present invention, by placing the connecting portion covering material 210 so as to cover the floor slab expansion / contraction coupling device 1 as described above, the support plate 10 (10A, 10B) of the floor slab expansion / contraction coupling device 1 has a pressing force. Load. As a result, the bending portion 12 of the support plate 10 (10A, 10B) is moved from the position of the bending portion 12 before placing the connecting portion covering material 210 to the initial setting position (that is, as shown by the dotted line in FIG. 2). The curved portion 12 of the support 10 is moved to the housing side by elastic deformation to the position of the portion 12a. At this time, the movement amount (g1) is preferably in the range of 0 to 20 mm.

更に、本発明によれば、初期位置に設定された支持板10(10A、10B)の湾曲部12aは、床版伸縮連結装置1に負荷される押圧力に対応して、更に、躯体側に近づく方向へと(湾曲部12bの位置へと)、弾性変形可能とされる。このとき、移動量(g2)は、0〜20mmの範囲であるのが好ましい。従って、初期設定位置(湾曲部12aの位置)から躯体202の側面までの距離gは、20mm以上、例えば、30mm程度とされる。   Further, according to the present invention, the curved portion 12a of the support plate 10 (10A, 10B) set to the initial position further corresponds to the pressing force applied to the floor slab expansion / contraction coupling device 1, and further to the housing side. In the approaching direction (to the position of the bending portion 12b), elastic deformation is possible. At this time, the movement amount (g2) is preferably in the range of 0 to 20 mm. Accordingly, the distance g from the initial setting position (the position of the bending portion 12a) to the side surface of the housing 202 is set to 20 mm or more, for example, about 30 mm.

又、一方、支持板10への負荷が減少した場合には、初期位置に設定されている支持板10の湾曲部12aは、無負荷状態の位置(湾曲部12の位置)方向へと移動量(g1)=0〜20mmの範囲で弾性変形により移動可能とされる。   On the other hand, when the load on the support plate 10 decreases, the bending portion 12a of the support plate 10 set to the initial position moves in the direction of the unloaded state (position of the bending portion 12). (G1) It is possible to move by elastic deformation in the range of 0 to 20 mm.

上記移動量g1、g2を0〜20mmとすることにより、この移動量にて、本発明の床版伸縮連結装置1が対象とする橋梁の変位量をカバーすることができる。   By setting the movement amounts g1 and g2 to 0 to 20 mm, the displacement amount of the bridge targeted by the floor slab expansion and contraction coupling device 1 of the present invention can be covered by this movement amount.

図2にて理解されるように、本発明によれば、支持板10(10A、10B)の先端湾曲部12は、躯体側へと近づく方向に変形する場合には、常に、躯体の湾曲角部212の湾曲面に沿って曲げられることとなり、支持板10及び強化繊維シート3が損傷を受けることはない。   As can be seen in FIG. 2, according to the present invention, when the tip bending portion 12 of the support plate 10 (10A, 10B) is deformed in a direction approaching the housing side, the bending angle of the housing is always obtained. It will be bent along the curved surface of the part 212, and the support plate 10 and the reinforcing fiber sheet 3 will not be damaged.

一方、例えば、図3に示すように、本発明の構成と異なり、躯体201の遊間部Gに対面した側の端縁角部212が湾曲形状とされていない場合であって、しかも、躯体角部212が、支持板10の取付部11と湾曲部12との間に形成された中間平坦部11aに位置するように構成された場合には、支持板10に対して下方への負荷がかかった場合には、支持板10は、一点鎖線にて示す支持板10aのように、中間平坦部10aと取付部11との接続部位置F、即ち、躯体角部212にて鋭角に折り曲がることとなる。   On the other hand, for example, as shown in FIG. 3, unlike the configuration of the present invention, the edge corner 212 on the side of the housing 201 facing the play gap G is not curved, and the housing angle When the portion 212 is configured to be positioned at the intermediate flat portion 11 a formed between the mounting portion 11 and the bending portion 12 of the support plate 10, a downward load is applied to the support plate 10. In this case, the support plate 10 bends at an acute angle at the connecting portion position F between the intermediate flat portion 10a and the mounting portion 11, that is, the frame corner portion 212, like the support plate 10a indicated by a one-dot chain line. It becomes.

床版伸縮連結装置1の伸縮動作により、支持板10に対してこのような折り曲げ作用が繰り返し行われると、この折り曲げ位置Fにて、強化繊維シート3も又損傷を受け、切断し易くなる。また、支持板10自体が折損に至る懸念もある。   When such a bending action is repeatedly performed on the support plate 10 by the expansion / contraction operation of the floor slab expansion / contraction coupling device 1, the reinforcing fiber sheet 3 is also damaged and easily cut at the bending position F. There is also a concern that the support plate 10 itself may break.

実験例1
本発明に従って構成された床版連結部の効果を立証するために、下記仕様にて床版伸縮連結装置1を作製した。
Experimental example 1
In order to verify the effect of the floor slab connecting portion configured according to the present invention, the floor slab expansion and contraction connecting device 1 was manufactured with the following specifications.

支持板10A、10B
材料:鋼板
板厚: 6mm
全体の長さ(L1) 1800mm
取付部11の幅(L2): 132mm
先端部領域12の半径(R1): 53mm
先端部領域12の延在長さ(L1): 53mm
取付板20A、20B
材料:鋼板
板厚: 6mm
全体の長さ(L1) 200mm
幅(L2): 132mm
強化繊維シート3
湾曲部3Aの半径R: 30mm
両端取付部3Bの長さ(L2): 132mm
強化繊維シート3の物性:
PBO繊維:東洋紡績株式会社(商品名:ザイロン)
引張弾性率 2.7×105N/mm2
引張強度 5800N/mm2
強化繊維シートの積層枚数 3層
Support plate 10A, 10B
Material: Steel plate Thickness: 6mm
Overall length (L1) 1800mm
Width of mounting portion 11 (L2): 132 mm
Radius (R1) of the tip region 12: 53 mm
Extension length (L1) of the tip end region 12: 53 mm
Mounting plate 20A, 20B
Material: Steel plate Thickness: 6mm
Overall length (L1) 200mm
Width (L2): 132mm
Reinforcing fiber sheet 3
Radius R of the curved portion 3A: 30mm
Length of both end mounting portions 3B (L2): 132mm
Physical properties of the reinforcing fiber sheet 3:
PBO fiber: Toyobo Co., Ltd. (trade name: Xylon)
Tensile modulus 2.7 × 10 5 N / mm 2
Tensile strength 5800N / mm 2
Number of laminated reinforcing fiber sheets 3 layers

本実験例では、上述の構成とされる床版伸縮連結装置1は、図1に示したと同様の構造とされる両床版101(101A、101B)の遊間部Gに取り付けた。次いで、床版伸縮連結装置1を覆って、連結被覆材210を打設した。これにより、支持板10の自由端先端は、弾性変形して移動し、移動量(g1)は10mmであった。このとき、支持板10(10A、10B)の先端部領域12と不陸調整材202との間の距離gは20mmであった。   In the present experimental example, the floor slab expansion and contraction coupling device 1 having the above-described configuration is attached to the gap portion G of both floor slabs 101 (101A, 101B) having the same structure as shown in FIG. Next, the covering covering material 210 was placed so as to cover the floor slab telescopic connecting device 1. Thereby, the free end tip of the support plate 10 moved by elastic deformation, and the movement amount (g1) was 10 mm. At this time, the distance g between the tip end region 12 of the support plate 10 (10A, 10B) and the unevenness adjusting material 202 was 20 mm.

また、連結部被覆材210(210A、210B)は、連結部被覆材210Aとして、軟質樹脂モルタル:日鉄コンポジット株式会社製(商品名:FJ−30)を、また、連結部被覆材210Bとして樹脂モルタル:日鉄コンポジット株式会社製(商品名:FJ−20)を使用した。   Further, the connecting portion covering material 210 (210A, 210B) is a soft resin mortar made by Nippon Steel Composite Co., Ltd. (trade name: FJ-30) as the connecting portion covering material 210A, and a resin as the connecting portion covering material 210B. Mortar: Nippon Steel Composite Co., Ltd. (trade name: FJ-20) was used.

夏場においても、路面、即ち、連結部被覆材210(210A、210B)の上面が盛り上がることはなく、良好な結果を得ることができた。   Even in summer, the road surface, that is, the upper surface of the connecting portion covering material 210 (210A, 210B) did not rise, and good results could be obtained.

また、支持板10及び強化繊維シート3が折損したり、切れたりすることはなかった。   Further, the support plate 10 and the reinforcing fiber sheet 3 were not broken or cut.

本発明の床版連結部の構造の一実施例を示す断面図である。It is sectional drawing which shows one Example of the structure of the floor slab coupling | bond part of this invention. 本発明の床版連結部の構造を説明する拡大断面図である。It is an expanded sectional view explaining the structure of the floor slab connection part of this invention. 本発明の床版連結部の構造の利点を説明するための比較例の拡大断面図である。It is an expanded sectional view of the comparative example for demonstrating the advantage of the structure of the floor slab coupling | bond part of this invention. 支持板の一実施例を示す斜視図である。It is a perspective view which shows one Example of a support plate. 支持板の一実施例を示す側面図である。It is a side view which shows one Example of a support plate. 取付板に固定した強化繊維シートを示す斜視図である。It is a perspective view which shows the reinforced fiber sheet fixed to the attachment board. 従来の床版連結部の構造の一例を示す断面図である。It is sectional drawing which shows an example of the structure of the conventional floor slab coupling | bond part.

符号の説明Explanation of symbols

1 床版伸縮連結装置
3 強化繊維シート
3A 伸縮湾曲部
3B 両端部
10(10A、10B) 支持板
11 支持板の取付部
12 支持板の先端部領域(自由端)
20(20A、20B) 取付板
100(101A、101B) 床版
201 躯体(コンクリート)
202 不陸調整材
210(210A、210B) 連結部被覆材
211 躯体表面平面部
212 躯体湾曲角部
300 舗装材(アスファルト)
DESCRIPTION OF SYMBOLS 1 Floor slab expansion-contraction apparatus 3 Reinforcement fiber sheet 3A Expansion-contraction bending part 3B Both-ends part 10 (10A, 10B) Support plate 11 Mounting part of support plate 12 Front-end | tip part area | region (free end) of a support plate
20 (20A, 20B) Mounting plate 100 (101A, 101B) Floor slab 201 Frame (concrete)
202 Non-land surface adjustment material 210 (210A, 210B) Connecting part covering material 211 Frame surface flat surface part 212 Curved corner part 300 Pavement material (asphalt)

Claims (2)

床版の連結部において遊間部の両側に位置した躯体にそれぞれ取付けられる支持板と、伸縮可能の湾曲部を有し、前記両支持板に少なくとも一部が接合された強化繊維シートと、を有する床版伸縮連結装置が設置された床版連結部の構造において、
前記躯体は、前記支持板を取り付ける平面部と、前記躯体の遊間部に対面した側であって前記平面部と段差なく円滑に連接して形成された湾曲角部と、を有し、
前記支持板は、前記躯体の平面部に取り付けられる取付部と、該取付部に段差なく円滑に連接し、そして、前記躯体の湾曲角部に沿って且つこの湾曲角部とは離間して配置された、前記強化繊維シート湾曲部へと延在した先端部領域と、を有し、
前記支持板の前記先端部領域は、弾性変形可能の自由端とされ、
前記支持板の前記先端部領域の自由端先端は、前記床版連結装置を躯体に取り付けた状態にて連結部被覆材を打設して前記支持板に負荷をかけることにより、躯体側に近づく方向に0〜20mmの範囲で弾性変形した状態に設置され、
前記弾性変形された前記支持板の前記先端部領域の自由端先端は、前記床版伸縮装置の伸縮に対応して、前記支持板の自由端先端が躯体側に近づく方向へと更に0〜20mmの範囲で弾性変形可能とされ、且つ、前記支持板の自由端先端が躯体側から離れる方向へと、0〜20mmの範囲で弾性変形可能とされることを特徴とする床版連結部の構造。
A support plate attached to each of the casings located on both sides of the gap portion in the connecting portion of the floor slab, and a reinforcing fiber sheet having an extendable and curvable portion and at least partially joined to both the support plates. In the structure of the floor slab connecting part where the floor slab telescopic connection device is installed,
The housing includes a flat portion to which the support plate is attached, and a curved corner portion formed on the side facing the play portion of the housing and smoothly connected to the flat portion without a step,
The support plate is smoothly connected to the mounting portion attached to the flat portion of the housing without any step, and is disposed along the curved corner portion of the housing and apart from the curved corner portion. A distal end region extending to the reinforcing fiber sheet curved portion,
The tip region of the support plate is an elastically deformable free end,
The free end tip of the tip region of the support plate approaches the housing side by placing a connecting portion covering material in a state where the floor slab connecting device is attached to the housing and applying a load to the support plate. Installed in a state of elastic deformation in the range of 0-20 mm in the direction,
The free end tip of the tip end region of the support plate that has been elastically deformed further corresponds to the expansion and contraction of the floor slab stretching device, and the free end tip of the support plate further approaches 0 to 20 mm in a direction approaching the housing side. The structure of the floor slab connecting portion is characterized in that it can be elastically deformed in the range of 0 and 20 mm and can be elastically deformed in the range of 0 to 20 mm in the direction in which the free end of the support plate is away from the housing side. .
前記支持板は、鋼板、FRP板、或いは、高強度プラスチック板にて作製されることを特徴とする請求項1の床版連結部の構造。   The structure of a floor slab connection part according to claim 1, wherein the support plate is made of a steel plate, an FRP plate, or a high-strength plastic plate.
JP2003338381A 2003-09-29 2003-09-29 Floor slab connection structure Expired - Fee Related JP4141929B2 (en)

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JP4141929B2 true JP4141929B2 (en) 2008-08-27

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