JP2018040219A - Support device for expansion joint cover, expansion joint floor structure, and cradle for expansion joint cover - Google Patents

Support device for expansion joint cover, expansion joint floor structure, and cradle for expansion joint cover Download PDF

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JP2018040219A
JP2018040219A JP2016176724A JP2016176724A JP2018040219A JP 2018040219 A JP2018040219 A JP 2018040219A JP 2016176724 A JP2016176724 A JP 2016176724A JP 2016176724 A JP2016176724 A JP 2016176724A JP 2018040219 A JP2018040219 A JP 2018040219A
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expansion joint
joint cover
support
end edge
cradle
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JP6886263B2 (en
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有弘 永谷
Arihiro Nagatani
有弘 永谷
諒 遠藤
Ryo Endo
諒 遠藤
和彰 伊藤
Kazuaki Ito
和彰 伊藤
正則 塩澤
Masanori Shiozawa
正則 塩澤
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Naka Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a support device for an expansion joint cover, an expansion joint floor structure, and a cradle for an expansion joint cover that can make construction easier.SOLUTION: The present invention relates to a support device for an expansion joint cover 4 that is coupled at one end edge to either of a base-isolation structure 1 and an adjacent structure 3 adjoining the base-isolation structure 1 across a gap 2 for movement so as to support the other end edge side of the expansion joint cover 4 closing the gap 2 for movement in a freely advancing/retracting manner, the support device for an expansion joint cover 4 having a support leg 6 which is formed in a height adjustable state and stood on an installation base 5 of the other of the base-isolation structure 1 and the adjacent structure 3, and a cradle 7 supported by the support leg 6 at a horizontal position relative to the one end edge side to support the other end edge side of the expansion joint cover 4.SELECTED DRAWING: Figure 4

Description

本発明は、エキスパンションジョイントカバーの支持装置、エキスパンションジョイント床構造、およびエキスパンションジョイントカバー用の受台に関するものである。   The present invention relates to a support device for an expansion joint cover, an expansion joint floor structure, and a cradle for the expansion joint cover.

免震建造物と隣接構造体との間に形成される移動用間隙を閉塞するエキスパンションジョイントとしては、従来、特許文献1に記載のものが知られている。この従来例において、建築物と該建築物に溝を介して隣接するコンクリート躯体のそれぞれからは、差し筋が突設され、溝蓋(エキスパンションジョイントカバー)は、それぞれの差し筋に高さ調整して溶接固定される一対の受枠(受台)に一端を連結されるとともに、他端を摺動自在に支持されて設置される。この他端側を支持する受枠は、例えば、複数の鋼板を差し筋等にそれぞれ溶接することで枠状に組み上げられる。   As an expansion joint for closing a gap for movement formed between a base-isolated building and an adjacent structure, the one described in Patent Document 1 has been conventionally known. In this conventional example, an incision bar protrudes from each of the building and the concrete frame adjacent to the building through a groove, and the groove cover (expansion joint cover) adjusts the height of each incision bar. One end is connected to a pair of receiving frames (bases) fixed by welding and the other end is slidably supported and installed. The receiving frame that supports the other end side is assembled into a frame shape by welding a plurality of steel plates to a reinforcing bar, for example.

特許4778391号公報Japanese Patent No. 4778391

しかしながら、上述した従来例は、受台の施工に溶接作業を要するために、溶接技能者を手配しなければならない上に、溶接技能者の熟練度に応じて出来が左右されてしまいやすいという欠点がある。   However, since the conventional example described above requires welding work for the construction of the cradle, it is necessary to arrange a welding engineer, and further, the result is likely to be affected by the skill level of the welding engineer. There is.

本発明は以上の欠点を解消すべくなされたものであって、施工をより容易にすることのできるエキスパンションジョイントカバーの支持装置の提供を目的とする。また、本発明の他の目的は、施工をより容易にすることのできるエキスパンションジョイント床構造の提供にある。   The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide an expansion joint cover support device that can be easily constructed. Another object of the present invention is to provide an expansion joint floor structure that can make the construction easier.

一方、上述の従来例は、受台に鋼板を用いるために、その重量によって施工が手間がかかるという欠点がある。本発明のさらに他の目的は、このような欠点の解消を可能にし、施工をより容易にすることのできるエキスパンションジョイントカバー用の受台の提供にある。   On the other hand, since the above-mentioned conventional example uses a steel plate for the cradle, there is a disadvantage that the construction takes time due to its weight. Still another object of the present invention is to provide a cradle for an expansion joint cover that makes it possible to eliminate such drawbacks and make the construction easier.

本発明によれば、上記目的は、
免震建造物1と該免震建造物1に移動用間隙2を隔てて隣接する隣接構造体3のいずれか一方に一端縁部において連結されて前記移動用間隙2を閉塞するエキスパンションジョイントカバー4の他端縁部側を進退移動自在に支承するエキスパンションジョイントカバーの支持装置であって、
高さ調整可能に形成されて前記免震建造物1と隣接構造体3のいずれか他方の設置基部5上に立設される支持脚6と、
前記支持脚6により一端縁部側との水平位置に支持されてエキスパンションジョイントカバー4の他端縁部側を支承する受台7とを有するエキスパンションジョイントカバーの支持装置を提供することにより達成される。
According to the invention, the object is
An expansion joint cover 4 that is connected at one edge to one of the seismic isolation structure 1 and the adjacent structure 3 that is adjacent to the seismic isolation structure 1 with the movement gap 2 therebetween, and closes the movement gap 2. A support device for the expansion joint cover that supports the other end edge side of the head so as to be movable forward and backward.
Support legs 6 that are formed to be height-adjustable and are erected on the other installation base 5 of the seismic isolation building 1 and the adjacent structure 3;
This is achieved by providing a support device for an expansion joint cover having a support 7 that is supported by the support leg 6 in a horizontal position with the one end edge side and supports the other end edge side of the expansion joint cover 4. .

本発明によれば、エキスパンションジョイントカバー4の支持装置は、高さ調整可能に形成された支持脚6に受台7を組み付けて構成される。この組み付けは、例えばビス等によってすることが可能である。   According to the present invention, the support device for the expansion joint cover 4 is configured by assembling the cradle 7 to the support leg 6 formed to be adjustable in height. This assembling can be performed with, for example, screws.

これにより、エキスパンションジョイントカバー4の水平支持は、支持脚6の高さを調整することで担保される。また、受台7は、進退移動自在にエキスパンションジョイントカバー4を支承するために面積を広く確保する必要があり、このため支持脚6の複数を用いて支承することによって設置基部5の不陸の影響を受けやすくなるが、このような不陸も支持脚6の高さを設置位置に応じて調整することにより吸収することができる。さらに、支持脚6による不陸の吸収により、複数枚のエキスパンションジョイントカバー4、4、・・の表面を面一に揃えることも容易にでき、これらを跨いで人や車両が通行しやすくなる。   Thereby, the horizontal support of the expansion joint cover 4 is ensured by adjusting the height of the support legs 6. Further, it is necessary for the cradle 7 to secure a large area in order to support the expansion joint cover 4 so as to be movable back and forth. For this reason, by using a plurality of support legs 6, Such unevenness can be absorbed by adjusting the height of the support leg 6 according to the installation position. Furthermore, the surface of the plurality of expansion joint covers 4, 4,... Can be easily aligned by absorbing the unevenness by the support legs 6, and it becomes easy for people and vehicles to pass through them.

したがって本発明によれば、エキスパンションジョイントカバーの支持装置の施工は、専門技能や熟練度の要求される溶接作業を用いることなく、一般作業者によってより容易に進めることができる。また、施工時における手直しも、溶接による場合よりも極めて簡単になる。   Therefore, according to the present invention, the construction of the support device for the expansion joint cover can be more easily advanced by a general worker without using a welding operation that requires specialized skills and skill levels. In addition, rework during construction is much easier than with welding.

さらに、従来においては、鋼材を現場でガス切断、溶接するなどして受台7自体を製作していたが、予め受台7を用意しておくことにより、このような手間も省くことができるし、受台7の高さが異なるような現場においても、高さ調整機能を利用することで共通の受台7を使用することができる。同様に、従来においては、鋼材を現場でガス切断して事前に打ち込まれたアンカーに溶接するなどし、更にこの鋼材を受台7と溶接して、受台7の高さ調整を行っていたが、予め高さ調整可能な支持脚6を用意しておくことにより、このような手間も省くことができる。加えて、エキスパンションジョイントカバー4の厚さが異なるために受台7の高さが異なるような現場においても、支持脚6の高さ調整機能を利用することにより、エキスパンションジョイントカバー4の水平支持及びエキスパンションジョイントカバー4の表面の高さ調整も容易なものとなる。   Furthermore, conventionally, the cradle 7 itself was manufactured by cutting and welding steel materials on site, but such trouble can be saved by preparing the cradle 7 in advance. Even in the field where the height of the cradle 7 is different, the common cradle 7 can be used by using the height adjustment function. Similarly, in the past, the steel material was gas cut at the site and welded to an anchor that was previously driven, and this steel material was further welded to the cradle 7 to adjust the height of the cradle 7. However, by preparing the support legs 6 that can be height-adjusted in advance, such trouble can be saved. In addition, even in the field where the height of the cradle 7 is different because the thickness of the expansion joint cover 4 is different, by using the height adjusting function of the support leg 6, the expansion joint cover 4 can be supported horizontally. The height of the surface of the expansion joint cover 4 can be easily adjusted.

また、上記支持脚6の設置基部5上への設置は、ネジあるいは接着剤からなる固定手段8によることが可能である。具体的には例えば、コンクリートビスやコンクリート用接着剤を利用することが可能である。   The support leg 6 can be installed on the installation base 5 by a fixing means 8 made of a screw or an adhesive. Specifically, for example, a concrete screw or an adhesive for concrete can be used.

上記受台7は、例えば適宜の金属板材によって構成することが可能であるが、上述した従来例のようにコンクリート等の充填材10をより充填しやすくするための開口を備えた枠状にすることも可能である。このような枠状の受台7、すなわち受枠は、型材9をビス組みして構成することで施工が容易になる。この場合、型材9にビス穴等のビス受けを予め形成しておけば、ビス組みが容易になる。なお、このようにビス組みして構成する場合、受台7を予め工場で組み上げてから現場に搬入しても、あるいは、型材9を現場搬入した上で、現場において組み上げるようにしても足りる。   The cradle 7 can be formed of, for example, an appropriate metal plate material, but has a frame shape with an opening for facilitating filling of the filler 10 such as concrete as in the conventional example described above. It is also possible. Such a frame-shaped cradle 7, that is, the receiving frame, can be easily constructed by forming the mold material 9 with screws. In this case, if a screw receiver such as a screw hole is formed in the mold material 9 in advance, the screw assembly becomes easy. In the case where the screws are assembled in this way, it is sufficient that the cradle 7 is assembled in advance in the factory and then carried into the site, or the mold material 9 is carried in and then assembled on the site.

また、エキスパンションジョイント床構造は、
免震建造物1と該免震建造物1に移動用間隙2を隔てて隣接する隣接構造体3のいずれか一方に設置される連結装置11と、
前記免震建造物1と隣接構造体3のいずれか他方の設置基部5上に設置される支持装置12と、
前記連結装置11に一端縁部が連結されるとともに、他端縁部側が前記支持装置12により進退移動自在に支承されて前記移動用間隙2を閉塞するエキスパンションジョイントカバー4とを有し、
前記支持装置12は、高さ調整可能に形成されて連結装置11との水平位置においてエキスパンションジョイントカバー4の他端縁部を支持して構成することができ、支持装置12を連結装置11に合わせて高さ調整することにより、施工を容易に進めることができる。
The expansion joint floor structure
A connecting device 11 installed in either one of the seismic isolation building 1 and an adjacent structure 3 adjacent to the seismic isolation building 1 with a gap 2 for movement;
A support device 12 installed on the other installation base 5 of the seismic isolation building 1 and the adjacent structure 3;
An expansion joint cover 4 having one end edge connected to the connecting device 11 and the other end edge side supported by the support device 12 so as to be movable forward and backward, and closing the gap 2 for movement;
The support device 12 is configured to be height-adjustable, and can be configured to support the other end edge of the expansion joint cover 4 in a horizontal position with the connection device 11. The support device 12 is aligned with the connection device 11. By adjusting the height, construction can be easily advanced.

一方、本発明に係るエキスパンションジョイントカバー用の受台は、上述のように受台の重量による施工性の低下を改善できるもので、
型材9を枠組みして形成され、設置基部5上に設置されて該設置基部5上に充填される充填材10により埋設されるエキスパンションジョイントカバー用の受台であって、
前記型材9には、固化状態の充填材10に係止して該充填材10との熱膨張率差による浮き上がり方向への移動を抑制する抜け止め片13が押出成形により形成して構成される。
On the other hand, the cradle for the expansion joint cover according to the present invention can improve the deterioration of workability due to the weight of the cradle as described above.
A cradle for an expansion joint cover that is formed by a framework of the mold material 9 and is embedded on the installation base 5 and embedded by the filler 10 filled on the installation base 5,
The mold member 9 is formed by extrusion forming a retaining piece 13 that is locked to the solidified filler 10 and suppresses movement in the lifting direction due to a difference in thermal expansion coefficient with the filler 10. .

本発明によれば、枠状の受台7である受台は、固化状態の充填材10に係止して浮き上がり方向への移動を抑制する抜け止め片13を備えて構成される。この抜け止め片13は、充填材10と熱膨張率差が高い材料によりエキスパンションジョイントカバー用の受台7を形成した場合に、施工後の温度環境の変化により充填材10との膨張差によって長手方向により延伸してしまい、太鼓状に浮き上がってしまうことを防止する。   According to the present invention, the cradle, which is a frame-shaped cradle 7, is configured to include a retaining piece 13 that is locked to the solidified filler 10 and suppresses movement in the floating direction. When the stopper 7 for the expansion joint cover is formed of a material having a high thermal expansion coefficient difference from that of the filler 10, the retaining piece 13 is elongated by a difference in expansion from the filler 10 due to a change in temperature environment after construction. Stretching depending on the direction to prevent the drum from rising up.

したがって本発明によれば、受台7の材料選択の幅を広げることができ、このような材料選択の高い自由度を通じて、より軽量の材料を採用することによる施工性の向上に貢献できる。言い換えれば、このような材料選択の自由度を向上させる過程で生じる、充填材10との熱膨張率差に起因する不具合の発生をも抑制することができるものである。   Therefore, according to the present invention, the range of material selection of the cradle 7 can be widened, and through such a high degree of freedom in material selection, it is possible to contribute to improvement in workability by adopting a lighter material. In other words, it is possible to suppress the occurrence of defects due to the difference in thermal expansion coefficient from the filler 10 that occurs in the process of improving the degree of freedom of material selection.

具体的には例えば、充填材10として一般に用いられるモルタルやコンクリートなどと熱膨張率が近似する鋼ではなく、アルミニウム等のより軽量ではあるものの熱膨張率が相違する材料によって受台7を形成することにより、比重が格段に大きい鋼で受台7を形成する従来例に比べて、施工性が格段に向上する。   Specifically, for example, the cradle 7 is formed of a material that is lighter but has a different coefficient of thermal expansion, such as aluminum, instead of steel having a coefficient of thermal expansion similar to that of mortar, concrete, or the like that is generally used as the filler 10. Thus, the workability is remarkably improved as compared with the conventional example in which the cradle 7 is formed of steel having a significantly higher specific gravity.

また、上述の抜け止め片13が押出成形により形成されることによって、型材9の生産効率を良好に維持することもできる。   Moreover, the production efficiency of the mold material 9 can be maintained well by forming the above-described retaining pieces 13 by extrusion molding.

以上の説明から明らかなように、本発明によれば、施工をより容易にすることのできるエキスパンションジョイントカバーの支持装置、エキスパンションジョイント床構造、およびエキスパンションジョイントカバー用の受台を提供することができ、免震施設のより簡易な構築に寄与することができる。   As is apparent from the above description, according to the present invention, it is possible to provide an expansion joint cover support device, an expansion joint floor structure, and a cradle for the expansion joint cover that can be easily constructed. This can contribute to the simpler construction of seismic isolation facilities.

免震建造物の基礎周りの構造を説明する図で、(a)は要部縦断面図、(b)は(a)の要部拡大図である。It is a figure explaining the structure around the foundation of a base-isolated building, (a) is a principal part longitudinal cross-sectional view, (b) is a principal part enlarged view of (a). 本発明に係るエキスパンションジョイント床構造を示す図で、(a)は平面図、(b)はエキスパンションジョイントカバー取り付け前の施工途上の斜視図である。It is a figure which shows the expansion joint floor structure which concerns on this invention, (a) is a top view, (b) is a perspective view in the middle of construction before an expansion joint cover attachment. 受台の設置状態を示す図で、(a)は平面図、(b)は要部縦断面図である。It is a figure which shows the installation state of a receiving stand, (a) is a top view, (b) is a principal part longitudinal cross-sectional view. 受台を示す図で、(a)は分解斜視図、(b)は支持脚の拡大斜視図、(c)は型材の断面図、(d)は受台の斜視図である。It is a figure which shows a receiving stand, (a) is a disassembled perspective view, (b) is an expansion perspective view of a support leg, (c) is sectional drawing of a type | mold material, (d) is a perspective view of a receiving stand. 受台の施工過程を示す図で、(a)は支持脚を設置した状態を示す斜視図、(b)は支持脚への受台の取り付け作業を示す斜視図、(c)は受台の設置が完了した状態を示す斜視図である。It is a figure which shows the construction process of a cradle, (a) is a perspective view which shows the state which installed the support leg, (b) is a perspective view which shows the attachment operation | work of a cradle to a support leg, (c) is a cradle of a cradle It is a perspective view which shows the state which installation was completed. 連結装置周辺を示す要部縦断面図である。It is a principal part longitudinal cross-sectional view which shows a coupling device periphery. 補助用支持脚を示す斜視図である。It is a perspective view which shows the supporting leg for assistance. 地震発生時におけるエキスパンションジョイントの挙動を示す図で、(a)は移動用間隙が狭まったときを示す縦断面図、(b)は移動用間隙が広がったときを示す縦断面図である。It is a figure which shows the behavior of the expansion joint at the time of an earthquake occurrence, (a) is a longitudinal cross-sectional view which shows when the gap for movement narrows, (b) is a longitudinal cross-sectional view which shows when the gap for movement expands. 補助用支持脚の施工状態を示す図で、(a)は補助用支持脚の受台への組み付け初期段階の作業を示す側面図、(b)は組み付け終期段階の作業を示す側面図、(c)は施工完了状態を示す斜視図である。It is a figure which shows the construction state of an auxiliary support leg, (a) is a side view which shows the operation | work of the assembly | attachment initial stage to the cradle of an auxiliary support leg, (b) is a side view which shows the operation | work of the assembly | attachment final stage, c) is a perspective view showing a construction completion state.

図1ないし図8に本発明の実施の形態を示す。図1(a)に示すように、建造物(免震建造物1)は、地盤20を掘り下げて形成されたコンクリート躯体21上に設置されるアイソレータ等の免震装置22上に構築される。上記コンクリート躯体21は、地表面23下において建造物1の周囲まで延設され、建造物1から一定間隔離れた位置で地表面23に露出して建造物1の外側に舗装面(隣接構造物3)を提供する。   1 to 8 show an embodiment of the present invention. As shown in FIG. 1A, the building (base-isolated building 1) is constructed on a base-isolation device 22 such as an isolator installed on a concrete frame 21 formed by digging down the ground 20. The concrete frame 21 extends to the periphery of the building 1 below the ground surface 23, is exposed to the ground surface 23 at a position spaced apart from the building 1, and is paved on the outside of the building 1 (adjacent structure). 3) is provided.

また、この実施の形態においてコンクリート躯体21には、上記舗装面3よりも少し手前で免震装置22の設置面から地表面23近傍まで立ち上がるようにして縦壁21aが形成され、建造物1の下端には、この縦壁21aのほぼ直上位置まで周囲に向かって張り出すようにしてコンクリートが打設されて建造物1に付帯の犬走りを構成する張り出し部1aが形成される。コンクリート躯体21は、上記縦壁21aの上端よりもやや低い位置からさらに外側に向かって延設されて凹形状をなすようにして舗装面3へと連続し、これにより上記張り出し部1aと舗装面3との間において移動用間隙2が形成される。なお、移動用間隙2は、上述した免震装置22の設置面の深さのままコンクリート躯体21を舗装面3の直近まで水平方向に拡幅し、上述の縦壁21a等を省略して構成することも可能である。   In this embodiment, a vertical wall 21 a is formed on the concrete frame 21 so as to rise from the installation surface of the seismic isolation device 22 to the vicinity of the ground surface 23 slightly before the pavement surface 3. At the lower end, concrete is cast so as to project to the position almost directly above the vertical wall 21a to form an overhanging portion 1a that constitutes an accompanying dog run in the building 1. The concrete frame 21 extends further outward from a position slightly lower than the upper end of the vertical wall 21a and continues to the pavement surface 3 so as to form a concave shape, thereby the overhanging portion 1a and the pavement surface. A gap 2 for movement is formed between the two. The moving gap 2 is configured by expanding the concrete frame 21 in the horizontal direction up to the vicinity of the pavement surface 3 with the depth of the installation surface of the seismic isolation device 22 described above, and omitting the vertical wall 21a and the like described above. It is also possible.

地震が発生した際には、上記舗装面3が振幅及び方向ともに地震動の大きさそのままに振動するのに対し、建造物1は免震装置22により地震動が吸収されるため、図8に示すように舗装面3と張り出し部1aとの間隔が拡縮するが、移動用間隙2がこの拡縮を吸収することにより舗装面3と張り出し部1aとの衝突が避けられる。本発明に係るエキスパンションジョイント床構造は、このような拡縮の吸収を妨げることなく、移動用間隙2をエキスパンションジョイントにより覆って構築される。   When an earthquake occurs, the paved surface 3 vibrates with the magnitude and direction of the earthquake motion as it is, whereas the building 1 absorbs the earthquake motion by the seismic isolation device 22, and as shown in FIG. The distance between the pavement surface 3 and the overhanging portion 1a expands and contracts. However, the movement gap 2 absorbs the expansion and contraction, so that the collision between the pavement surface 3 and the overhanging portion 1a can be avoided. The expansion joint floor structure according to the present invention is constructed by covering the moving gap 2 with an expansion joint without hindering such absorption of expansion and contraction.

上記エキスパンションジョイント床構造は、図1(b)に示すように、移動用間隙2を閉塞するエキスパンションジョイントカバー4と、エキスパンションジョイントカバー4の一端縁部が垂直回転自在に連結される連結装置11と、エキスパンションジョイントカバー4の他端縁部を進退移動自在に支承する支持装置12とを有する。この実施の形態において、上記エキスパンションジョイントカバー4は、図1(b)および図2(a)に示すように、グレーチング24の表面に縞鋼板からなる表面材25を溶接固定し、幅1m前後、長さ1.5m前後のサイズに形成される。このエキスパンションジョイントカバー4の先端の表面部には、縞鋼板からなるスロープ材26が垂直回転自在に連結される。なお、図2(a)において27は、後述する連結ボルト28をグレーチング24に締結しやすくするための表面材25の開口部分を覆うキャップ27である。   As shown in FIG. 1 (b), the expansion joint floor structure includes an expansion joint cover 4 that closes the moving gap 2, and a connecting device 11 in which one end edge of the expansion joint cover 4 is connected to be vertically rotatable. And a support device 12 that supports the other end edge of the expansion joint cover 4 so as to be movable back and forth. In this embodiment, the expansion joint cover 4 has a surface material 25 made of a striped steel plate welded to the surface of the grating 24, as shown in FIGS. 1B and 2A, and has a width of about 1 m. It is formed in a size of about 1.5 m in length. A slope member 26 made of a striped steel plate is connected to the surface portion at the tip of the expansion joint cover 4 so as to be vertically rotatable. In FIG. 2A, reference numeral 27 denotes a cap 27 that covers an opening portion of the surface material 25 for facilitating fastening of a connecting bolt 28 described later to the grating 24.

上記連結装置11は、図2(b)および図6に示すように、金属材料からなる長尺のレール材29を有する。このレール材29は、円弧状に屈曲して形成される縦壁部29aを有し、該縦壁部29aには、その高さ方向に長寸に形成された透孔29bが長手方向に沿って所定ピッチで穿孔される。   As shown in FIGS. 2B and 6, the connecting device 11 has a long rail member 29 made of a metal material. The rail member 29 has a vertical wall portion 29a formed by bending in an arc shape, and a through-hole 29b formed in a length in the height direction of the vertical wall portion 29a extends along the longitudinal direction. Perforated at a predetermined pitch.

以上のレール材29は縦壁部29aの両端から延設される一対の取付片29c、29cにおいてアングル材30に固定され、このアングル材30を介して張り出し部1aの上面に適宜の脚部材31等により高さ調整されて固定される。固定状態において、上記縦壁部29aは、円弧状の曲面が移動用間隙2に向けて凸となる姿勢で張り出し部1aの先端縁に沿って配置される。以上のようにしてレール材29の張り出し部1aへの設置が完了すると、図2(b)において2点鎖線で示すように、張り出し部1a上面にアングル材30の表面を露出させるようにしてモルタル(充填材10)が充填され、これによりレール材29等を外部に露出させた状態でアンカー材等が埋設されて連結装置11が完成する。なお、上記脚部材31等の張り出し部1aへの固定は、コンクリートビスとコンクリート用接着剤(固定手段8)を併用してなされ、また、上記脚部材31等は、後述する支持脚6同様、高さ調整機能を備える。   The rail member 29 is fixed to the angle member 30 with a pair of attachment pieces 29c and 29c extending from both ends of the vertical wall portion 29a, and an appropriate leg member 31 is attached to the upper surface of the projecting portion 1a via the angle member 30. The height is adjusted by, for example, fixing. In the fixed state, the vertical wall portion 29 a is disposed along the distal end edge of the overhang portion 1 a with an arcuate curved surface protruding toward the moving gap 2. When the installation of the rail material 29 to the projecting portion 1a is completed as described above, the mortar is formed so that the surface of the angle member 30 is exposed on the upper surface of the projecting portion 1a as shown by a two-dot chain line in FIG. (Filler 10) is filled, and thereby the anchor material or the like is buried with the rail material 29 or the like exposed to the outside, and the connecting device 11 is completed. The leg member 31 and the like are fixed to the overhanging portion 1a by using a concrete screw and a concrete adhesive (fixing means 8) in combination, and the leg member 31 and the like are the same as the support leg 6 described later. Equipped with height adjustment function.

上記支持装置12は、図2(b)および図3に示すように、型材9を枠組みして形成される受枠(受台7)を有する。上記型材9はアルミニウムからなり、その枠組みはビス12aによりなされる。また、上記型材9には、図4(a)および(d)に示すように、この実施の形態においてアングル材と、C型チャンネル材近似のものの2種類があり、アングル材を横桟9a、C型チャンネル材近似のものを縦桟9bとすることにより、組み上げられる受枠7が梯子状をなす。以上の受台7は上述した連結装置11同様、3m程度の長さでユニット化され、施工長さに応じて複数ユニットが連接される。   As shown in FIGS. 2B and 3, the support device 12 has a receiving frame (receiving stand 7) that is formed by using the mold material 9 as a frame. The mold 9 is made of aluminum, and the frame is made of screws 12a. In addition, as shown in FIGS. 4A and 4D, there are two types of the mold material 9 in this embodiment, an angle material and an approximate C-type channel material. By using the vertical beam 9b as an approximate C-type channel material, the assembled receiving frame 7 forms a ladder shape. The above cradle 7 is unitized with a length of about 3 m as in the above-described coupling device 11, and a plurality of units are connected in accordance with the construction length.

また、上述のビス組みを容易にするために、上記縦桟9bにはビス受け32が予め形成される。このビス受け32は、図4(c)等に示すように、縦桟9bの一方のフランジを他方よりも長寸に形成した上で、その内壁面にフランジと協働してC字形状をなすように一対の突起を突設させた上で、これらの内周面にネジ溝を切って形成される。また、上述のビス12aとしてテクスビス等のセルフタッピング可能なビスを用いた場合には、横桟9aに現場でビス穴を開ける手間を省くことができる。   Further, in order to facilitate the above-described screw assembly, a screw receiver 32 is formed in advance on the vertical rail 9b. As shown in FIG. 4 (c), the screw receiver 32 is formed with one flange of the vertical rail 9b longer than the other, and has a C-shape on its inner wall surface in cooperation with the flange. After forming a pair of protrusions so as to form, a thread groove is formed in these inner peripheral surfaces. Further, when a self-tapping screw such as a tex screw is used as the above-described screw 12a, it is possible to save the trouble of making a screw hole on the horizontal rail 9a in the field.

また、上記一方のフランジには、後述する補助支持脚6'との嵌合部33が形成される。この嵌合部33は、上記一方のフランジの先端を外側に屈曲した後、基端側に折り返してL字状の折り返し片33aを形成するとともに、同様に基端側においても線対称となるようにウェブを延設、折り返して折り返し片33aを形成し、これら折り返し片33a間にスリット状に構成される。   In addition, a fitting portion 33 with an auxiliary support leg 6 ′ described later is formed on the one flange. The fitting portion 33 bends the distal end of the one flange outward, and then folds it back to the base end side to form an L-shaped folded piece 33a. The web is extended and folded to form the folded piece 33a, and the folded piece 33a is formed in a slit shape.

さらに、上記縦桟9bには、図4(c)に示すように、抜け止め片13が形成される。この抜け止め片13は、フランジの先端をウェブと平行に屈曲して形成されるもので、上述した一方のフランジは折り返し片33aの基端部分により、また、他方のフランジは先端を内側に屈曲して形成される。   Further, as shown in FIG. 4C, a retaining piece 13 is formed on the vertical rail 9b. The retaining piece 13 is formed by bending the distal end of the flange in parallel with the web. One flange described above is bent by the proximal end portion of the folded piece 33a, and the other flange is bent by the distal end inward. Formed.

以上の受枠7を設置するために、上述したコンクリート躯体21の舗装面3の移動用間隙2側には、舗装面3よりも一段低い設置基部5が形成される。受枠7の設置は、上記設置基部5上に立設される支持脚6を介してなされ、この支持脚6により上記縦桟9bを支持してなされる。   In order to install the receiving frame 7 described above, the installation base 5 that is one step lower than the pavement surface 3 is formed on the moving gap 2 side of the pavement surface 3 of the concrete frame 21 described above. The receiving frame 7 is installed via a support leg 6 erected on the installation base 5, and the vertical beam 9 b is supported by the support leg 6.

上記支持脚6は、図4(b)に示すように、設置基部5上に立設される脚部34と、該脚部34の上端部に取り付けられる支持部35とを有する。上記脚部34は、金属板材からなるベース板34aの中央から両切りボルト34bを立設して形成される。ベース板34aと両切りボルト34bとは溶接等により一体化され、上述の設置基部5への設置は、ベース板34aの四隅部に予め形成されたキリ穴36を貫通して設置基部5にコンクリートビス(固定手段8)をねじ込み、あるいは、ベース板34aの裏面をコンクリートボンド(固定手段8)により設置基部5に接着してなされる。   As shown in FIG. 4 (b), the support leg 6 has a leg 34 that is erected on the installation base 5 and a support 35 that is attached to the upper end of the leg 34. The leg portion 34 is formed by standing a double-sided bolt 34b from the center of a base plate 34a made of a metal plate material. The base plate 34a and the double-sided bolt 34b are integrated by welding or the like, and the above-described installation to the installation base 5 is performed by passing concrete holes 36 formed in advance at the four corners of the base plate 34a to the installation base 5 to provide concrete screws. (Fixing means 8) is screwed, or the back surface of the base plate 34a is bonded to the installation base 5 with concrete bond (fixing means 8).

上記支持部35は、金属板材を略コ字形状に折曲して形成される挟持片35aを備える。両縦壁に跨る横壁の中央には、上記両切ボルトよりもやや大径の通し穴が予め開設されており、この通し穴上に溶接等により固定されたナット35bによって上述の両切りボルト34bとの締結位置を調整することによって、ベース板34aからの高さを調整することができる。また、両縦壁は、基端部における間隔が縦桟9bの横幅よりもやや広く、先端に行くに従って漸次間隔が狭まるようにされ、先端における間隔が縦桟9bの横幅よりもやや狭くされることにより、縦桟9bをしっかりと挟持することができるようにされる。また、上記挟持片35aの両縦壁にはタップ穴35cが予め形成される。   The support portion 35 includes a sandwiching piece 35a formed by bending a metal plate material into a substantially U shape. A through hole having a diameter slightly larger than that of the above-described two-cut bolts is provided in the center of the horizontal wall straddling both vertical walls. By adjusting the fastening position, the height from the base plate 34a can be adjusted. In addition, the distance between the base walls of the vertical walls is slightly wider than the horizontal width of the vertical beam 9b, and the distance between the vertical walls gradually decreases toward the tip, and the distance at the distal end is slightly narrower than the horizontal width of the vertical beam 9b. As a result, the vertical rail 9b can be firmly clamped. Further, tap holes 35c are formed in advance on both vertical walls of the holding piece 35a.

さらに、支持装置12は、上述のように地震により舗装面3と張り出し部1aとの間隔が狭まったときにエキスパンションジョイントカバー4の先端が設置基部5を通過して舗装面3の側面に衝突することを避けるために、図2(b)等に示すように、スロープ部37を有する。このスロープ部37は、アルミニウムの長尺の板材の両側縁を鈍角に谷折り、山折りして中央部のスロープ面37aの両端にそれぞれ平行な取り付け面37bを配置して形成される。以上のスロープ部37は、谷折り側の下方の取り付け面37bを上述の横桟9aにビス止めし、上方の取り付け面37bを舗装面3の移動用間隙2側の辺縁部にコンクリートビス12aでビス止めすることにより設置される。なお、横桟9aとのビス止めにも上述同様テクスビス等を用いることにより、ビス穴を穿孔する手間を軽減することができる。   Further, in the support device 12, the tip of the expansion joint cover 4 passes through the installation base 5 and collides with the side surface of the pavement surface 3 when the distance between the pavement surface 3 and the overhanging portion 1 a is narrowed by an earthquake as described above. In order to avoid this, a slope portion 37 is provided as shown in FIG. The slope portion 37 is formed by truncating both side edges of a long aluminum plate at an obtuse angle and mountain-folding and arranging parallel mounting surfaces 37b at both ends of the slope surface 37a at the center. The above slope portion 37 is screwed at the mounting surface 37b on the lower side of the valley fold to the horizontal rail 9a, and the upper mounting surface 37b on the side edge of the pavement surface 3 on the moving gap 2 side. Installed with screws. It should be noted that by using a tex screw or the like in the same manner as described above for screwing with the horizontal rail 9a, the labor of drilling the screw hole can be reduced.

また、上記スロープ面37aを設置基部5上に強固に支持するために、支持装置12は補助支持部38を有する。この補助支持部38は、金属板材をクランク状に折曲して形成され、両端には舗装面3等に固定するための固定板部38aが形成される。補助支持部38は、舗装面3の移動用間隙2側の辺縁部に一方の固定板部38aを重ねると、ここから舗装面3の側面に沿って下方に垂下した後、設置基部5の表面に沿って移動用間隙2側に延びてから、さらに他方の固定板部38aが上方に向かって立ち上がる。   Further, in order to firmly support the slope surface 37 a on the installation base 5, the support device 12 has an auxiliary support portion 38. The auxiliary support portion 38 is formed by bending a metal plate material into a crank shape, and fixed plate portions 38a for fixing to the pavement surface 3 and the like are formed at both ends. The auxiliary support portion 38 hangs down along the side surface of the pavement surface 3 from one side of the fixed plate portion 38a on the side edge of the pavement surface 3 on the moving gap 2 side. After extending to the moving gap 2 side along the surface, the other fixed plate portion 38a rises upward.

したがって、一方の固定板部38aをスロープ部37の上側の取り付け面37bに重ねてコンクリートビス12aでビス止めし、他方の固定用面を横桟9aにビス止めすれば、地震発生時にエキスパンションジョイントカバー4が衝突しても、スロープ面37aが舗装面3側に容易に変形してしまうことが防がれる。この横桟9aへのビス止めに際してもテクスビス等を用いることが可能である。   Therefore, if one fixing plate portion 38a is overlapped with the upper mounting surface 37b of the slope portion 37 and screwed with the concrete screw 12a, and the other fixing surface is screwed to the horizontal rail 9a, the expansion joint cover can be used in the event of an earthquake. Even if 4 collides, the slope surface 37a is prevented from being easily deformed to the pavement surface 3 side. A tex screw or the like can be used for screwing the horizontal rail 9a.

以上の支持装置12の設置は、図5(a)に示すように、まず最初に、支持脚6の設置位置を設置基部5に墨出しにより記した上で、この墨出し位置に合わせて支持脚6の脚部34を設置してなされる。脚部34を設置したら、次いで、連結装置11よりも受枠7の分だけ低い高さに合わせて支持部35を組み付けて支持脚6を完成させた後、この支持脚6に縦桟9bを組み付ける。この組み付けに際しては、図5(b)に示すように、支持部35のタップ穴35cを通して縦桟9bにテクスビス等12aを貫通させることにより、縦桟9bを強固に支持することができる。   As shown in FIG. 5A, the installation of the support device 12 described above is performed by first marking the installation position of the support leg 6 on the installation base 5 and marking it in accordance with the marking position. The leg portion 34 of the leg 6 is installed. After the leg portion 34 is installed, the support portion 35 is assembled to the height lower than the coupling device 11 by the height of the receiving frame 7 to complete the support leg 6, and then the vertical beam 9 b is assembled to the support leg 6. . At the time of this assembly, as shown in FIG. 5B, the vertical rail 9b can be firmly supported by passing the text screws 12a through the vertical rail 9b through the tap holes 35c of the support portion 35.

この後、縦桟9bの両端に横桟9aをビス止めすると受枠7が完成する。受枠7の施工が完了したら、補助支持部38の一端を横桟9aにネジ止めした後、横桟9aにスロープ部37の下端をネジ止めし、この状態で補助支持部38とスロープ部37の上端を舗装面3にビス止めする。図5(c)に示すように、以上のようにしてスロープ部37や補助支持部38の設置が完了したら、最後に、図2(b)にしめすように、受枠7の上面を外部に露出させるようにして枠内の開口部分から設置基部5の上面にモルタル10を流し込み、支持脚6等を埋設させれば、支持装置12が完成する。   After this, the receiving frame 7 is completed when the horizontal beam 9a is screwed to both ends of the vertical beam 9b. When the construction of the receiving frame 7 is completed, one end of the auxiliary support portion 38 is screwed to the horizontal beam 9a, and then the lower end of the slope portion 37 is screwed to the horizontal beam 9a. In this state, the auxiliary support portion 38 and the slope portion 37 are Screw the upper end to the pavement surface 3. As shown in FIG. 5C, when the installation of the slope portion 37 and the auxiliary support portion 38 is completed as described above, finally, as shown in FIG. 2B, the upper surface of the receiving frame 7 is exposed to the outside. If the mortar 10 is poured into the upper surface of the installation base 5 from the opening in the frame and the support legs 6 and the like are embedded, the support device 12 is completed.

図3はモルタル10充填前の支持装置12の状態を示すもので、モルタル10は、図2(b)に示すように、受枠7の上面近傍、およびスロープ部37の表面近傍まで充填されることにより、受枠7やスロープ部37を補強する。   FIG. 3 shows the state of the support device 12 before filling the mortar 10, and the mortar 10 is filled to the vicinity of the upper surface of the receiving frame 7 and the surface of the slope portion 37 as shown in FIG. Thus, the receiving frame 7 and the slope portion 37 are reinforced.

以上のようにして支持装置12が完成したら、この上にエキスパンションジョイントカバー4を載せて荷重をやや支えるようにしながら連結装置11に連結すれば、エキスパンションジョイント床構造が完成する。エキスパンションジョイントカバー4と連結装置11との連結は、図6に示すように、レール材29の透孔29bに挿入された上述の連結ボルト28の先端をグレーチング24に形成されたボルト挿通部24aに貫通させた後、ダブルナット等からなる連結ナット39で締め付けることによりなされる。連結装置11を張り出し部1aに設置する前に予め連結ボルト28を挿入しておき、連結ナット39の締め付けに際しては上述のキャップ27を取り外すことにより、連結作業をスムーズに進めることができる。   When the support device 12 is completed as described above, the expansion joint floor structure is completed by placing the expansion joint cover 4 on the support device 12 and connecting it to the connection device 11 while slightly supporting the load. As shown in FIG. 6, the expansion joint cover 4 and the connecting device 11 are connected to a bolt insertion portion 24 a formed in the grating 24 with the tip of the connecting bolt 28 inserted into the through hole 29 b of the rail member 29. After penetrating, it is made by tightening with a connecting nut 39 made of a double nut or the like. Before installing the connecting device 11 on the overhanging portion 1a, the connecting bolt 28 is inserted in advance, and when the connecting nut 39 is tightened, the above-described cap 27 is removed, so that the connecting operation can be smoothly advanced.

この後、地震が発生して図8(a)に示すように舗装面3と張り出し部1aとの間隔が縮小すると、エキスパンションジョイントカバー4は、連結ボルト28が透孔29b内を移動することで垂直回転することにより先端部がスロープ部37に乗り上げて舗装面3をかわし、反対に間隔が拡大したときにも、エキスパンションジョイントカバー4の先端部が支持装置12上に残ることにより、移動用間隙2が閉塞した状態に保持される。   Thereafter, when an earthquake occurs and the distance between the pavement surface 3 and the overhanging portion 1a is reduced as shown in FIG. 8A, the expansion joint cover 4 is moved by the connecting bolt 28 moving in the through hole 29b. When the tip portion rides on the slope portion 37 by rotating vertically to dodge the pavement surface 3, and the interval increases, the tip portion of the expansion joint cover 4 remains on the support device 12. 2 is kept closed.

また、設置後において、夏場など高温になった際には、モルタル10よりも熱膨張率の高いアルミニウムの縦桟9bが伸長し、両端が支持脚6に拘束されることにより長手方向中央部を太鼓状に膨らませるようにして変形するおそれもある。この点、この実施の形態においては、上述のように縦桟9bが抜け止め片13を備えることにより、浮き上がり方向の移動が抑制されるために、かかる変形を抑制することができる。   After installation, when the temperature becomes high, such as in summer, the vertical rail 9b having a higher thermal expansion coefficient than that of the mortar 10 is extended, and both ends are constrained by the support legs 6 so that the central portion in the longitudinal direction is There is also a risk of deformation as it expands like a drum. In this respect, in this embodiment, since the vertical rail 9b includes the retaining piece 13 as described above, the movement in the lifting direction is suppressed, so that such deformation can be suppressed.

また、この実施の形態において、上述した支持装置12は、支持脚6による受枠7の支持を補うための補助支持脚6'を備える。この補助支持脚6'は、移動用間隙2の幅をより広く設定した際に、支持脚6の配置されない縦桟9bの長手方向中間部において連結装置11との水平が十分に確保できないおそれが受枠7の施工後に認められたときに、後施工により上記中間部において受枠7を支持する。   In this embodiment, the above-described support device 12 includes an auxiliary support leg 6 ′ for supplementing the support of the receiving frame 7 by the support leg 6. When the width of the gap for movement 2 is set wider, the auxiliary support leg 6 ′ may not be able to ensure sufficient horizontality with the coupling device 11 at the longitudinal intermediate portion of the vertical beam 9b where the support leg 6 is not disposed. When it is recognized after construction of the receiving frame 7, the receiving frame 7 is supported at the intermediate portion by post-construction.

上記補助支持脚6'は、図7に示すように、支持脚6とほぼ同じ構造の脚部34'と、上述した縦桟9bの嵌合部33に嵌合可能な支持部35'とを有する。上記支持部35'は、金属板材を折曲して形成され、脚部34'に取り付けられる取付片40と、上述の嵌合部33に嵌合可能な嵌合片41を有する。上記取付片40は、略U字形状をなし、中央部に脚部34'のボルト部分よりもやや幅広の切欠部40aを有する。上記嵌合片41は、対角線上に位置する一対の角取りした略長方形形状をなし、その長辺が嵌合部33のスリットに嵌合可能な長さ寸法に形成される。   As shown in FIG. 7, the auxiliary support leg 6 ′ includes a leg part 34 ′ having substantially the same structure as the support leg 6 and a support part 35 ′ that can be fitted to the fitting part 33 of the vertical beam 9 b described above. Have. The support portion 35 ′ is formed by bending a metal plate material, and includes an attachment piece 40 attached to the leg portion 34 ′ and a fitting piece 41 that can be fitted to the fitting portion 33 described above. The mounting piece 40 is substantially U-shaped and has a notch 40a that is slightly wider than the bolt portion of the leg 34 'at the center. The fitting piece 41 has a pair of chamfered substantially rectangular shapes located on a diagonal line, and the long side thereof is formed in a length dimension that can be fitted into the slit of the fitting portion 33.

以上の支持部35'は、取付片40の開放端とは反対端縁を直交方向に折曲して形成される中間部42をさらに有し、嵌合片41は、この中間部42と取付片40の双方に直交する方向に屈曲されて形成される。嵌合部33への組み付けは、図9(a)ないし(c)に示すように、縦桟9bの側方において予め脚部34'を設置基部5に固定した上で、嵌合片41の長辺部分を嵌合部33に合わせて挿入した後、スリット40aに脚部34'のボルト部分を通すようにして支持部35'を90度垂直回転させてなされる。この垂直回転に際し、嵌合片41は角取り部分によって嵌合部33を通過し、これにより短辺が嵌合部33に嵌合するとともに、取付片40が脚部34'のボルト部分に直交する位置をとる。   The support portion 35 ′ further includes an intermediate portion 42 formed by bending an end edge opposite to the open end of the attachment piece 40 in the orthogonal direction, and the fitting piece 41 is attached to the intermediate portion 42. It is bent and formed in a direction orthogonal to both the pieces 40. As shown in FIGS. 9A to 9C, the fitting portion 33 is assembled by fixing the leg portion 34 'to the installation base 5 in advance on the side of the vertical rail 9b, and After the long side portion is inserted in accordance with the fitting portion 33, the support portion 35 'is rotated 90 degrees vertically so that the bolt portion of the leg portion 34' is passed through the slit 40a. During this vertical rotation, the fitting piece 41 passes through the fitting portion 33 by the chamfered portion, whereby the short side is fitted to the fitting portion 33 and the attachment piece 40 is orthogonal to the bolt portion of the leg portion 34 ′. Take a position to do.

この後、嵌合片41をテクスビス等12aで縦桟9bにビス止めするとともに、取付片40の高さに合わせて脚部34'にナット43を締結すれば、補助支持脚6'の設置が完了する。なお、図7において43'は円盤ナットである。   Thereafter, the fitting piece 41 is screwed to the vertical rail 9b with a tex screw 12a and the nut 43 is fastened to the leg portion 34 'according to the height of the mounting piece 40, so that the auxiliary support leg 6' is installed. Complete. In FIG. 7, reference numeral 43 'denotes a disk nut.

なお、以上の実施の形態においては、型材9を支持脚6に組み付けながら受枠7を構築する場合を示したが、図4(d)に示すように、受枠7を工場において予め組み上げた上で施工現場に搬入し、この受枠7を支持脚6に組み付けて支持装置12を構築することも可能である。また、上述の実施の形態においては、エキスパンションジョイントカバー4としてグレーチング24の表面に表面材25を溶接固定したものを採用したが、箱状の金属ケース内にグレーチング24を収容した上で内部にモルタル10を充填して構成したり、あるいは、あまり強度を要しない場所においては、金属板材等の適宜の強度を備えたシート材により構成したりすることも可能である。   In the above embodiment, the case where the receiving frame 7 is constructed while assembling the mold member 9 to the support leg 6 is shown. However, as shown in FIG. 4D, the receiving frame 7 is assembled in advance in the factory. It is also possible to construct the support device 12 by carrying it into the construction site and assembling the receiving frame 7 to the support leg 6. In the above-described embodiment, the expansion joint cover 4 has a surface material 25 welded and fixed to the surface of the grating 24. However, the grating 24 is housed in a box-shaped metal case and the mortar is contained inside. 10 can be used, or in places where less strength is required, a sheet material having an appropriate strength such as a metal plate can be used.

さらに、上述の実施の形態においては、エキスパンションジョイントを免震建造物1と舗装面3との間に設置する場合を示したが、免震建造物1、1同士の連絡通路(渡り廊下)に設置しても足りる。加えて、上述の実施の形態においては、エキスパンションジョイントカバー4を一端縁部側を中心に垂直回転させるために、連結装置11に形成された透孔29b内で垂直回転移動する連結ボルト28を用いる場合を示したが、連結ボルト28を水平姿勢に固定しておいてエキスパンションジョイントカバー4側に長孔を設けたり、あるいは、鉛直姿勢に固定された連結ボルト28をエキスパンションジョイントカバー4の一端縁部底面側に形成したボルト挿入部に遊挿させても足りる。   Furthermore, in the above-mentioned embodiment, although the case where the expansion joint was installed between the seismic isolation building 1 and the pavement surface 3 was shown, it installed in the communication path (crossing corridor) of the seismic isolation building 1 and 1 each other. It's enough. In addition, in the above-described embodiment, in order to rotate the expansion joint cover 4 vertically around the one end edge side, the connecting bolt 28 that rotates vertically within the through hole 29b formed in the connecting device 11 is used. As shown, the connecting bolt 28 is fixed in a horizontal posture and a long hole is provided on the expansion joint cover 4 side, or the connecting bolt 28 fixed in a vertical posture is connected to one end edge of the expansion joint cover 4. It is sufficient to allow loose insertion in the bolt insertion portion formed on the bottom side.

1 免震建造物
2 移動用間隙
3 隣接構造体
4 エキスパンションジョイントカバー
5 設置基部
6 支持脚
7 受台
8 固定手段
9 型材
10 充填材
11 連結装置
12 支持装置
13 抜け止め片
DESCRIPTION OF SYMBOLS 1 Seismic isolation building 2 Movement gap 3 Adjacent structure 4 Expansion joint cover 5 Installation base 6 Support leg 7 Receiving base 8 Fixing means 9 Mold material 10 Filling material 11 Connecting device 12 Support device 13 Retaining piece

Claims (5)

免震建造物と該免震建造物に移動用間隙を隔てて隣接する隣接構造体のいずれか一方に一端縁部において連結されて前記移動用間隙を閉塞するエキスパンションジョイントカバーの他端縁部側を進退移動自在に支承するエキスパンションジョイントカバーの支持装置であって、
高さ調整可能に形成されて前記免震建造物と隣接構造体のいずれか他方の設置基部上に立設される支持脚と、
前記支持脚により一端縁部側との水平位置に支持されてエキスパンションジョイントカバーの他端縁部側を支承する受台とを有するエキスパンションジョイントカバーの支持装置。
The other end edge side of the expansion joint cover that is connected at one end edge to either one of the base-isolated building and the adjacent structure adjacent to the base-isolated structure with a gap for movement to close the gap for movement Is a support device for the expansion joint cover that supports the reciprocating movement freely,
A support leg that is formed to be height-adjustable and is erected on the other installation base of either the base-isolated structure or the adjacent structure;
A support device for an expansion joint cover, comprising: a cradle supported by the support leg in a horizontal position with the one end edge side and supporting the other end edge side of the expansion joint cover.
前記支持脚がネジあるいは接着剤からなる固定手段により設置基部に固定される請求項1記載のエキスパンションジョイントカバーの支持装置。   2. The expansion joint cover support device according to claim 1, wherein the support leg is fixed to the installation base by a fixing means comprising a screw or an adhesive. 前記受台は、型材を枠状にビス組みして形成され、設置基部上に充填される充填材により支持脚とともに埋設される請求項1または2記載のエキスパンションジョイントカバーの支持装置。   The expansion joint cover support device according to claim 1, wherein the cradle is formed by assembling a mold material into a frame shape and embedded with a support leg by a filler filled on an installation base. 免震建造物と該免震建造物に移動用間隙を隔てて隣接する隣接構造体のいずれか一方に設置される連結装置と、
前記免震建造物と隣接構造体のいずれか他方の設置基部上に設置される支持装置と、
前記連結装置に一端縁部が連結されるとともに、他端縁部側が前記支持装置により進退移動自在に支承されて前記移動用間隙を閉塞するエキスパンションジョイントカバーとを有し、
前記支持装置は、高さ調整可能に形成されて連結装置との水平位置においてエキスパンションジョイントカバーの他端縁部を支持するエキスパンションジョイント床構造。
A coupling device installed in one of the seismic isolation building and the adjacent structure adjacent to the seismic isolation building with a gap for movement;
A support device installed on the other installation base of the seismic isolation building and the adjacent structure;
An expansion joint cover that is connected to the connecting device at one end edge, and is supported by the support device so that the other end edge can move forward and backward, and closes the moving gap;
The said support apparatus is an expansion joint floor structure which is formed so that height adjustment is possible, and supports the other end edge part of an expansion joint cover in a horizontal position with a connection apparatus.
型材を枠組みして形成され、設置基部上に設置されて該設置基部上に充填される充填材により埋設されるエキスパンションジョイントカバー用の受台であって、
前記型材には、固化状態の充填材に係止して該充填材との熱膨張率差による浮き上がり方向への移動を抑制する抜け止め片が押出成形により形成されるエキスパンションジョイントカバー用の受台。
A cradle for an expansion joint cover that is formed by framing a mold material and is embedded on the installation base and is filled with a filler filled on the installation base,
The mold material has a retaining piece for an expansion joint cover, which is formed by extrusion molding so as to be locked to the solidified filler and prevent movement in the lifting direction due to a difference in thermal expansion coefficient with the filler. .
JP2016176724A 2016-09-09 2016-09-09 Expansion joint cover support device and expansion joint floor structure Active JP6886263B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381437A (en) * 1989-08-23 1991-04-05 Toshiichi Daimatsu Fixed structure of base framework for expansion joint
JP2008095385A (en) * 2006-10-12 2008-04-24 Daikure Co Ltd Ditch cover mounting structure
JP2013019267A (en) * 2012-11-02 2013-01-31 Toshiichi Daimatsu Base isolation expansion joint floor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381437A (en) * 1989-08-23 1991-04-05 Toshiichi Daimatsu Fixed structure of base framework for expansion joint
JP2008095385A (en) * 2006-10-12 2008-04-24 Daikure Co Ltd Ditch cover mounting structure
JP2013019267A (en) * 2012-11-02 2013-01-31 Toshiichi Daimatsu Base isolation expansion joint floor

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