JP2020133346A - Fixing structure and fixing method of flexible joint - Google Patents

Fixing structure and fixing method of flexible joint Download PDF

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JP2020133346A
JP2020133346A JP2019031723A JP2019031723A JP2020133346A JP 2020133346 A JP2020133346 A JP 2020133346A JP 2019031723 A JP2019031723 A JP 2019031723A JP 2019031723 A JP2019031723 A JP 2019031723A JP 2020133346 A JP2020133346 A JP 2020133346A
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plate portion
fixing plate
concrete body
fixing
flexible joint
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JP7180876B2 (en
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弘毅 高木
Hiroki Takagi
弘毅 高木
健 有村
Takeshi Arimura
健 有村
岡本　光弘
Mitsuhiro Okamoto
岡本　　光弘
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Hayakawa Rubber Co Ltd
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Hayakawa Rubber Co Ltd
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Abstract

To fix a fixing plate part of a flexible joint to a concrete body in a state in which cut-off performance is secured even when an anchor bolt embedded in the concrete body cannot be arbitrarily installed.SOLUTION: A pressing member includes a contact member 31 brought into contact with a first fixing plate part 11 of a flexible joint 10, and a support member 32. In a portion between anchor bolts in the support member 32, a bolt 33 for pressing that can press the contact member 31 against the first fixing plate part 11 is provided.SELECTED DRAWING: Figure 3

Description

本発明は、コンクリート構造物の目地に設けられる可撓継手を当該コンクリート構造物に固定する固定構造及び固定方法に関する。 The present invention relates to a fixing structure and a fixing method for fixing a flexible joint provided at a joint of a concrete structure to the concrete structure.

一般に、地中に構築されるコンクリートからなる構造物などの目地では、土砂の進入を防止したり、外側からの水の浸入を防止したり、内側からの水の流出を防止する必要がある。一方、目地の両側に配置されるコンクリート体は、不均等に沈下したり、地震発生時に相対的に変位したり、温度変化によって伸縮することがある。このような相対的な動きを許容するため、目地には、封止性・止水性・可撓性・伸縮性などを備える可撓継手が設置される。 In general, in joints such as concrete structures constructed underground, it is necessary to prevent the ingress of earth and sand, the intrusion of water from the outside, and the outflow of water from the inside. On the other hand, the concrete bodies arranged on both sides of the joint may sink unevenly, be relatively displaced when an earthquake occurs, or expand and contract due to temperature changes. In order to allow such relative movement, a flexible joint having sealing property, water stopping property, flexibility, elasticity and the like is installed at the joint.

可撓継手をコンクリート体に固定する構造としては、例えば特許文献１に開示されているように、可撓継手と、当該可撓継手をコンクリート体に固定するための押え板及び複数のアンカーボルトを備えた構造が知られている。特許文献１の可撓継手は、一方のコンクリート体から他方のコンクリート体に亘って設置されるものであり、その中間部には膨出部が形成され、膨出部の両側にはそれぞれ一方のコンクリート体に固定される固定板部及び他方のコンクリート体に固定される固定板部が形成されている。また、コンクリート体には、各アンカーボルトの基端側が埋め込まれており、各アンカーボルトが可撓継手の固定板部を貫通するとともに、押え板を貫通している。各アンカーボルトの先端側にナットを螺合させて締め付けることにより、押え板によって可撓継手の固定板部をコンクリート体へ強く押さえつけ、可撓継手とコンクリート体との間の止水性を確保するようにしている。 As a structure for fixing the flexible joint to the concrete body, for example, as disclosed in Patent Document 1, a flexible joint, a holding plate for fixing the flexible joint to the concrete body, and a plurality of anchor bolts are provided. The structure provided is known. The flexible joint of Patent Document 1 is installed from one concrete body to the other concrete body, and a bulging portion is formed in the middle portion thereof, and one of the bulging portions is formed on both sides of the bulging portion. A fixing plate portion fixed to the concrete body and a fixing plate portion fixed to the other concrete body are formed. Further, the base end side of each anchor bolt is embedded in the concrete body, and each anchor bolt penetrates the fixing plate portion of the flexible joint and also penetrates the holding plate. By screwing and tightening nuts on the tip side of each anchor bolt, the fixing plate of the flexible joint is strongly pressed against the concrete body by the holding plate, and water stoppage between the flexible joint and the concrete body is ensured. I have to.

特開２０１６−１９６７４５号公報JP-A-2016-196745

ところで、特許文献１の可撓継手の固定構造では、基端側がコンクリート体に埋め込まれたアンカーボルトにナットを螺合させることによって押え板を締結するようにしている。この構造の場合、止水性を確保するためには、アンカーボルトを所定の間隔以下で配置して押え板の締結箇所のピッチが大きくなり過ぎないようにする必要がある。これは、締結箇所のピッチが長くなればなるほど、締結箇所間における固定板部の押しつけ力が低下してしまい、止水性の悪化を招くからである。 By the way, in the fixed structure of the flexible joint of Patent Document 1, the holding plate is fastened by screwing a nut into an anchor bolt whose base end side is embedded in a concrete body. In the case of this structure, in order to ensure water stoppage, it is necessary to arrange anchor bolts at a predetermined interval or less so that the pitch of the fastening points of the presser plates does not become too large. This is because the longer the pitch of the fastening points, the lower the pressing force of the fixing plate portion between the fastening points, which causes deterioration of water stopping property.

ところが、アンカーボルトは押え板から突出した状態で設けられることになるので、可撓継手の近傍に例えば配管等の各種部材が配設されている場合には、アンカーボルトの設置が困難であるとともに、アンカーボルトにナットを螺合させる際の作業の邪魔になることがある。特に、既設のコンクリート体には既設配管等が配設されていることが多く、既設配管を除去して作業することは困難である。その結果、押え板の締結箇所のピッチを大きくせざるを得ない部分が生じ、止水性が悪化する懸念がある。 However, since the anchor bolts are provided so as to protrude from the holding plate, it is difficult to install the anchor bolts when various members such as pipes are arranged in the vicinity of the flexible joint. , May interfere with the work when screwing nuts into anchor bolts. In particular, existing pipes and the like are often arranged in the existing concrete body, and it is difficult to remove the existing pipes for work. As a result, there is a concern that the pitch of the fastening portion of the presser plate must be increased, resulting in deterioration of water stopping property.

また、アンカーボルトの基端側はコンクリート体に埋め込まれて固定されるのであるが、既設のコンクリート体の場合、下地の状態が悪くなっていることがあり、アンカーボルトを任意の位置に固定することが困難なことがある。このため、押え板の締結箇所のピッチを大きくせざるを得ない部分が生じ、止水性が悪化する懸念がある。 In addition, the base end side of the anchor bolt is embedded in the concrete body and fixed, but in the case of the existing concrete body, the condition of the base may be poor, and the anchor bolt is fixed at an arbitrary position. Can be difficult. For this reason, there is a concern that the pitch of the fastening portion of the presser plate must be increased, and the water stopping property may be deteriorated.

本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、コンクリート体に埋め込まれるアンカーボルトの設置が任意に行えない場合であっても、可撓継手の固定板部をコンクリート体に対して止水性を確保した状態で固定できるようにすることにある。 The present invention has been made in view of this point, and an object of the present invention is to provide a fixing plate portion of a flexible joint even when an anchor bolt embedded in a concrete body cannot be installed arbitrarily. The purpose is to make it possible to fix the concrete body with water resistance.

上記目的を達成するために、第１の発明は、第１コンクリート体と第２コンクリート体との間に形成される目地を覆うように設置される可撓継手を押え部材及び複数のアンカーボルトによって当該第１コンクリート体及び第２コンクリート体に固定する可撓継手の固定構造において、前記可撓継手は、前記目地に沿うように延び、前記第１コンクリート体及び前記第２コンクリート体にそれぞれ固定される第１固定板部及び第２固定板部と、前記第１固定板部及び前記第２固定板部の間に形成され、当該固定板部の厚み方向に膨出する膨出部とを備え、前記押さえ部材は、前記第１固定板部に沿って延びるように形成され、当該第１固定板部に対して前記第１コンクリート体とは反対側から当接する当接部材と、当該当接部材を前記第１固定板部とは反対側から支持するように配置される支持部材とを備え、前記アンカーボルトは、前記目地に沿う方向に互いに間隔をあけて複数設けられ、前記第１コンクリート体に埋め込まれた状態で固定されるとともに、前記第１固定板部、前記当接部材及び前記支持部材を貫通しており、前記アンカーボルトの先端側にナットが螺合されて前記支持部材が締結され、前記支持部材における前記アンカーボルトの間の部分には、前記当接部材を前記第１固定板部に押圧可能な押圧手段が設けられていることを特徴とする。 In order to achieve the above object, the first invention is to hold a flexible joint installed so as to cover a joint formed between a first concrete body and a second concrete body by a pressing member and a plurality of anchor bolts. In the fixing structure of the flexible joint fixed to the first concrete body and the second concrete body, the flexible joint extends along the joint and is fixed to the first concrete body and the second concrete body, respectively. A bulging portion formed between the first fixing plate portion and the second fixing plate portion and the first fixing plate portion and the second fixing plate portion and bulging in the thickness direction of the fixing plate portion is provided. The pressing member is formed so as to extend along the first fixing plate portion, and the contact member that abuts the first fixing plate portion from the side opposite to the first concrete body and the contact. A support member is provided so as to support the member from the side opposite to the first fixing plate portion, and a plurality of the anchor bolts are provided at intervals in the direction along the joint, and the first concrete. It is fixed in a state of being embedded in the body, penetrates the first fixing plate portion, the contact member, and the support member, and a nut is screwed to the tip side of the anchor bolt to form the support member. A portion of the support member between the anchor bolts that is fastened is provided with a pressing means capable of pressing the contact member against the first fixing plate portion.

この構成によれば、第１コンクリート体に埋め込まれた複数のアンカーボルトが目地に沿う方向に互いに間隔をあけて設けられているので、第１コンクリート体の近傍に例えば配管が存在している場合に、その配管を避けることができるように、アンカーボルトの間隔を広くすることや、第１コンクリート体の下地の状態が悪い箇所を避けるように、アンカーボルトの間隔を広くすることが可能になる。 According to this configuration, since a plurality of anchor bolts embedded in the first concrete body are provided at intervals in the direction along the joint, for example, when a pipe exists in the vicinity of the first concrete body. In addition, it is possible to widen the space between the anchor bolts so that the piping can be avoided, and to widen the space between the anchor bolts so as to avoid a place where the base condition of the first concrete body is poor. ..

そして、アンカーボルトの先端側にナットを螺合させて支持部材を締結すると、支持部材が当接部材を可撓継手の第１固定板部に押しつけ、これにより、第１固定板部が第１コンクリート体に押しつけられる。このとき、上述したようにアンカーボルトの間隔が広くなっているので、アンカーボルトの間においては第１固定板部の第１コンクリート体への押しつけ力が弱まる懸念があるが、この発明では、支持部材におけるアンカーボルトの間の部分に、当接部材を第１固定板部に押圧可能な押圧手段が設けられているので、この押圧手段により、アンカーボルトの間においても第１固定板部の第１コンクリート体への押しつけ力が高まる。尚、第２固定板部も第１固定板部と同様に当接部材及び支持部材を利用して第２コンクリート体に固定することが可能である。 Then, when the nut is screwed into the tip side of the anchor bolt to fasten the support member, the support member presses the contact member against the first fixing plate portion of the flexible joint, whereby the first fixing plate portion becomes the first. It is pressed against the concrete body. At this time, since the distance between the anchor bolts is wide as described above, there is a concern that the pressing force of the first fixing plate portion against the first concrete body is weakened between the anchor bolts, but in the present invention, it is supported. Since a pressing means capable of pressing the contact member against the first fixing plate portion is provided in the portion between the anchor bolts in the member, the pressing means also provides the first fixing plate portion between the anchor bolts. 1 The pressing force against the concrete body is increased. It should be noted that the second fixing plate portion can also be fixed to the second concrete body by using the contact member and the support member in the same manner as the first fixing plate portion.

第２の発明は、前記押圧手段は、前記支持部材に螺合するボルトであることを特徴とする。 The second invention is characterized in that the pressing means is a bolt screwed into the support member.

この構成によれば、支持部材に螺合するボルトを締め込むことで当接部材に対して第１固定板部への押圧力を強めることができる。これにより、現場において任意の押圧力を簡単に得ることができる。 According to this configuration, the pressing force on the first fixing plate portion can be increased against the contact member by tightening the bolt screwed into the support member. As a result, an arbitrary pressing force can be easily obtained in the field.

第３の発明は、前記支持部材は、前記第１固定板部に対して垂直な方向に延びるとともに、互いに間隔を開けて配置される第１側板部及び第２側板部と、当該第１側板部から当該第２側板部まで延びる連結板部とを有するように形成されており、前記連結板部には、前記ボルトが螺合する螺合部材が設けられていることを特徴とする。 In the third aspect of the invention, the support member extends in a direction perpendicular to the first fixing plate portion, and has a first side plate portion and a second side plate portion arranged at intervals from each other, and the first side plate portion. It is formed so as to have a connecting plate portion extending from the portion to the second side plate portion, and the connecting plate portion is provided with a screwing member into which the bolt is screwed.

この構成によれば、支持部材が第１側板部及び第２側板部と連結板部とを有する形状になるので、支持部材の剛性が高まる。そして、支持部材を構成する連結板部に螺合部材が設けられているので、この螺合部材にボルトを螺合させて締め込むことで、当接部材に対して押圧力を確実に作用させることができる。 According to this configuration, since the support member has a shape having the first side plate portion, the second side plate portion, and the connecting plate portion, the rigidity of the support member is increased. Since a screwing member is provided on the connecting plate portion constituting the support member, the pressing force is surely applied to the contact member by screwing and tightening the bolt to the screwing member. be able to.

第４の発明は、前記支持部材の断面係数は、前記当接部材の断面係数よりも大きいことを特徴とする。 The fourth invention is characterized in that the cross-sectional coefficient of the support member is larger than the cross-sectional coefficient of the contact member.

この構成によれば、支持部材の剛性を高めることができるので、当接部材に対して押圧力を確実に作用させることができる。尚、支持部材を構成する部材の厚みを、当接部材を構成する部材の厚みよりも厚くすることも可能である。 According to this configuration, the rigidity of the support member can be increased, so that the pressing force can be reliably applied to the contact member. It is also possible to make the thickness of the member constituting the support member thicker than the thickness of the member constituting the contact member.

第５の発明は、第１コンクリート体と第２コンクリート体との間に形成される目地を覆うように設置される可撓継手を押え部材及び複数のアンカーボルトによって当該第１コンクリート体及び第２コンクリート体に固定する可撓継手の固定方法において、前記可撓継手は、前記目地に沿うように延び、前記第１コンクリート体及び前記第２コンクリート体にそれぞれ固定される第１固定板部及び第２固定板部と、前記第１固定板部及び前記第２固定板部の間に形成され、当該固定板部の厚み方向に膨出する膨出部とを備え、前記押さえ部材は、前記第１固定板部に沿って延びるように形成され、当該第１固定板部に対して前記第１コンクリート体とは反対側から当接する当接部材と、当該当接部材を前記第１固定板部とは反対側から支持するように配置される支持部材とを備え、複数の前記アンカーボルトを前記目地に沿う方向に互いに間隔をあけて前記第１コンクリート体に埋め込んで固定するアンカーボルト固定工程と、複数の前記アンカーボルトを、前記第１固定板部、前記当接部材及び前記支持部材を貫通させ、前記アンカーボルトの先端側にナットを螺合して前記支持部材を締結する締結工程と、前記支持部材における前記アンカーボルトの間の部分に設けられた押圧手段によって前記当接部材を前記第１固定板部に押圧する押圧工程とを備えていることを特徴とする。 In a fifth invention, a flexible joint installed so as to cover a joint formed between a first concrete body and a second concrete body is held by a holding member and a plurality of anchor bolts to form the first concrete body and the second concrete body. In the method of fixing a flexible joint fixed to a concrete body, the flexible joint extends along the joint and is fixed to the first concrete body and the second concrete body, respectively. 2 The fixing plate portion is provided with a bulging portion formed between the first fixing plate portion and the second fixing plate portion and bulging in the thickness direction of the fixing plate portion, and the holding member is the first An abutting member formed so as to extend along the 1 fixing plate portion and abutting the first fixing plate portion from the side opposite to the first concrete body, and the abutting member with the first fixing plate portion. Anchor bolt fixing step of providing a support member arranged so as to support from the opposite side, and embedding and fixing a plurality of the anchor bolts in the first concrete body at intervals in the direction along the joint. A fastening step in which a plurality of the anchor bolts are passed through the first fixing plate portion, the contact member, and the support member, and a nut is screwed into the tip end side of the anchor bolt to fasten the support member. It is characterized by including a pressing step of pressing the contact member against the first fixing plate portion by a pressing means provided between the anchor bolts in the support member.

第６の発明は、前記押圧工程は前記締結工程の後に行うことを特徴とする。 The sixth invention is characterized in that the pressing step is performed after the fastening step.

本発明によれば、コンクリート体に埋め込まれるアンカーボルトの設置が任意に行えない場合であっても、可撓継手の固定板部をコンクリート体に対して止水性を確保した状態で固定できる。 According to the present invention, even when the anchor bolts embedded in the concrete body cannot be installed arbitrarily, the fixing plate portion of the flexible joint can be fixed to the concrete body in a state of ensuring water stoppage.

本発明の実施形態に係る可撓継手の固定構造が適用された構造物の一例を示す斜視図である。It is a perspective view which shows an example of the structure to which the fixed structure of the flexible joint which concerns on embodiment of this invention is applied. 図１におけるII−II線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG. 図１におけるIII−III線断面図である。FIG. 3 is a sectional view taken along line III-III in FIG. 押え部材の斜視図である。It is a perspective view of a holding member. 押え部材の断面図である。It is sectional drawing of a holding member. コンクリート体に固定したアンカーボルトにより可撓継手を位置決めした状態を示す図２相当図である。FIG. 2 is a view corresponding to FIG. 2 showing a state in which a flexible joint is positioned by anchor bolts fixed to a concrete body. 押え部材を位置決めした状態を示す図２相当図である。FIG. 2 is a view corresponding to FIG. 2 showing a state in which the pressing member is positioned. 構造物の角部近傍に本発明を適用した場合を示す図１相当図である。FIG. 1 is a view corresponding to FIG. 1 showing a case where the present invention is applied to the vicinity of corners of a structure.

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its application or its use.

図１は、本発明の実施形態に係る可撓継手の固定構造が適用されたコンクリート製構造物１００の一例を示す斜視図である。この構造物１００は、地中に構築される構造物であり、例えば、上下水処理施設の暗渠、開渠、洞道、共同溝等や、各種コンクリート施設等である。構造物１００は、第１コンクリート体１０１及び第２コンクリート体１０２を備えている。第１コンクリート体１０１及び第２コンクリート体１０２は、所定方向に並ぶように配置されている。この実施形態では、第１コンクリート体１０１及び第２コンクリート体１０２が水平方向に並ぶように配置されている場合について説明するが、これに限らず、上下方向に並ぶように配置されていてもよい。図２や図３にも示すように、第１コンクリート体１０１と第２コンクリート体１０２とは、並び方向に互いに間隔をあけて配置されており、第１コンクリート体１０１と第２コンクリート体１０２と間には、第１コンクリート体１０１及び第２コンクリート体１０２の縁部に沿って延びる目地１０３が形成されている。構造物１００の内側が図２、３の上側になり、構造物１００の外側が図２、３の下側になる。構造物１００の外側には土砂や水が存在している場合がある。 FIG. 1 is a perspective view showing an example of a concrete structure 100 to which a fixed structure of a flexible joint according to an embodiment of the present invention is applied. The structure 100 is a structure constructed underground, and is, for example, an underdrain, an open culvert, a cable tunnel, a utility tunnel, or the like of a water and sewage treatment facility, or various concrete facilities. The structure 100 includes a first concrete body 101 and a second concrete body 102. The first concrete body 101 and the second concrete body 102 are arranged so as to be arranged in a predetermined direction. In this embodiment, the case where the first concrete body 101 and the second concrete body 102 are arranged so as to be arranged in the horizontal direction will be described, but the present invention is not limited to this, and the first concrete body 101 and the second concrete body 102 may be arranged so as to be arranged in the vertical direction. .. As shown in FIGS. 2 and 3, the first concrete body 101 and the second concrete body 102 are arranged at intervals in the arrangement direction, and the first concrete body 101 and the second concrete body 102 A joint 103 extending along the edges of the first concrete body 101 and the second concrete body 102 is formed between them. The inside of the structure 100 is the upper side of FIGS. 2 and 3, and the outside of the structure 100 is the lower side of FIGS. 2 and 3. Sediment and water may be present on the outside of the structure 100.

構造物１００の第１コンクリート体１０１と第２コンクリート体１０２との間に目地１０３が形成されている場合には、構造物１００の外側の土砂が内側へ進入するのを防止すること、構造物１００の外側から内側への水の浸入を防止すること、構造物１００の内側に水が存在する場合にはその水が構造物１００の外側へ漏水しないようにすることが必要になる。また、目地１０３の両側に配置される第１コンクリート体１０１及び第２コンクリート体１０２は、不均等に沈下したり、地震発生時に相対的に変位したり、温度変化によって伸縮することがある。このような相対的な動きを許容しながら、目地１０３の止水性を確保するために、封止性・止水性・可撓性・伸縮性などを備える可撓継手１０が設置される。この可撓継手１０は、第１押え部材２０、第２押さえ部材３０、複数のアンカーボルト４０及びナット４１によって第１コンクリート体１０１及び第２コンクリート体１０２に固定される。 When the joint 103 is formed between the first concrete body 101 and the second concrete body 102 of the structure 100, it is necessary to prevent the earth and sand on the outside of the structure 100 from entering the inside of the structure. It is necessary to prevent the intrusion of water from the outside to the inside of the 100, and to prevent the water from leaking to the outside of the structure 100 when the water is present inside the structure 100. Further, the first concrete body 101 and the second concrete body 102 arranged on both sides of the joint 103 may sink unevenly, be relatively displaced when an earthquake occurs, or expand and contract due to a temperature change. In order to ensure the water-stopping property of the joint 103 while allowing such relative movement, a flexible joint 10 having sealing property, water-stopping property, flexibility, elasticity and the like is installed. The flexible joint 10 is fixed to the first concrete body 101 and the second concrete body 102 by the first pressing member 20, the second pressing member 30, a plurality of anchor bolts 40 and nuts 41.

また、図１に示すように、この構造物１００には、第１コンクリート体１０１及び第２コンクリート体１０２の近傍に配管１０４が配設されている。この配管１０４は、目地１０３の延びる方向と交差するように配設されており、第１コンクリート体１０１及び第２コンクリート体１０２の内側面に近い所を通っている。尚、配管１０４以外にも、各種部材が第１コンクリート体１０１及び第２コンクリート体１０２の内側面に近い所に配設される場合がある。 Further, as shown in FIG. 1, in this structure 100, a pipe 104 is arranged in the vicinity of the first concrete body 101 and the second concrete body 102. The pipe 104 is arranged so as to intersect the extending direction of the joint 103, and passes through a place near the inner side surface of the first concrete body 101 and the second concrete body 102. In addition to the pipe 104, various members may be arranged near the inner side surfaces of the first concrete body 101 and the second concrete body 102.

図２に示すように、アンカーボルト４０は、その基端側が第１コンクリート体１０１及び第２コンクリート体１０２にそれぞれ埋め込まれた状態で固定されており、先端側が第１コンクリート体１０１及び第２コンクリート体１０２の内側面から突出している。また、アンカーボルト４０は、目地１０３に沿う方向に互いに間隔をあけて設けられており、原則として、止水性を確保可能な所定の間隔以下で配置しているが、配管１０４に接近した部分では、配管１０４がアンカーボルト４０の先端側と干渉したり、アンカーボルト４０にナット４１を螺合させる際の作業が配管１０４の存在によって困難になることがあるので、このような部分ではアンカーボルト４０を設けていないか、ピッチを大きめに設定している。 As shown in FIG. 2, the anchor bolt 40 is fixed in a state where its base end side is embedded in the first concrete body 101 and the second concrete body 102, respectively, and the tip end side is the first concrete body 101 and the second concrete body 102. It protrudes from the inner surface of the body 102. Further, the anchor bolts 40 are provided at intervals in the direction along the joint 103, and in principle, they are arranged at a predetermined interval or less that can ensure water stopping, but in the portion close to the pipe 104. Since the pipe 104 may interfere with the tip side of the anchor bolt 40 or the work of screwing the nut 41 into the anchor bolt 40 may be difficult due to the presence of the pipe 104, the anchor bolt 40 may be difficult to perform in such a portion. Is not provided, or the pitch is set large.

（可撓継手１０の構成）
可撓部材１０は、第１コンクリート体１０１と第２コンクリート体１０２との間に形成される目地１０３を覆うように設置される部材である。可撓継手１０は、目地１０３に沿うように延び、第１コンクリート体１０１に固定される第１固定板部１１と、目地１０３に沿うように延び、第２コンクリート体１０２に固定される第２固定板部１２と、第１固定板部１１及び第２固定板部１２の間に形成され、当該固定板部１１、１２の厚み方向に膨出する膨出部１３とを備えている。第１固定板部１１、第２固定板部１２及び膨出部１３は、例えばゴム等によって一体成形されている。 (Structure of flexible joint 10)
The flexible member 10 is a member installed so as to cover the joint 103 formed between the first concrete body 101 and the second concrete body 102. The flexible joint 10 extends along the joint 103 and is fixed to the first concrete body 101, and the second fixing plate portion 11 extends along the joint 103 and is fixed to the second concrete body 102. A bulging portion 13 formed between the fixing plate portion 12 and the first fixing plate portion 11 and the second fixing plate portion 12 and bulging in the thickness direction of the fixing plate portions 11 and 12 is provided. The first fixing plate portion 11, the second fixing plate portion 12, and the bulging portion 13 are integrally molded with, for example, rubber.

図２に示すように、第１固定板部１１は、第１コンクリート体１０１の内側面に沿うように形成されており、アンカーボルト４０の配設位置に対応する部分には当該アンカーボルト４０が挿通する挿通孔１１ａが形成されている。第２固定板部１２は、第２コンクリート体１０２の内側面に沿うように形成されており、アンカーボルト４０の配設位置に対応する部分には当該アンカーボルト４０が挿通する挿通孔１２ａが形成されている。 As shown in FIG. 2, the first fixing plate portion 11 is formed along the inner side surface of the first concrete body 101, and the anchor bolt 40 is provided at a portion corresponding to the arrangement position of the anchor bolt 40. An insertion hole 11a to be inserted is formed. The second fixing plate portion 12 is formed along the inner side surface of the second concrete body 102, and an insertion hole 12a through which the anchor bolt 40 is inserted is formed in a portion corresponding to the arrangement position of the anchor bolt 40. Has been done.

膨出部１３は、可撓部材１０に伸縮性及び可撓性を持たせるために形成された部分である。膨出部１３の断面形状は特に限定されるものではなく、例えば１つの膨出部１３を形成してもよいし、図示しないが、２つ以上の膨出部１３を、第１コンクリート体１０１及び第２コンクリート体１０２の並び方向に並ぶように形成してもよい。膨出部１３の膨出方向も任意に設定することができる。 The bulging portion 13 is a portion formed to give the flexible member 10 elasticity and flexibility. The cross-sectional shape of the bulging portion 13 is not particularly limited, and for example, one bulging portion 13 may be formed, and although not shown, two or more bulging portions 13 may be formed on the first concrete body 101. And may be formed so as to be arranged in the arrangement direction of the second concrete body 102. The bulging direction of the bulging portion 13 can also be set arbitrarily.

（第１押え部材２０の構成）
図１に示すように、第１押え部材２０は、配管１０４に接近しない箇所において、可撓部材１０の第１固定板部１１を第１コンクリート体１０１に固定し、また可撓部材１０の第２固定板部１２を第２コンクリート体１０２に固定するための部材である。具体的には、第１押え部材２０は、例えば金属製の高剛性な板材で構成することができ、第１固定板部１１や第２固定板部１２に沿って延びるように形成されている。図示しないが、第１押え部材２０には、アンカーボルト４０が挿通する挿通孔が形成されている。 (Structure of 1st presser member 20)
As shown in FIG. 1, the first pressing member 20 fixes the first fixing plate portion 11 of the flexible member 10 to the first concrete body 101 at a position where it does not approach the pipe 104, and also fixes the first fixing plate portion 11 of the flexible member 10 to the first concrete body 101. 2 This is a member for fixing the fixing plate portion 12 to the second concrete body 102. Specifically, the first pressing member 20 can be made of, for example, a metal high-rigidity plate material, and is formed so as to extend along the first fixing plate portion 11 and the second fixing plate portion 12. .. Although not shown, the first pressing member 20 is formed with an insertion hole through which the anchor bolt 40 is inserted.

そして、第１コンクリート体１０１に固定されているアンカーボルト４０を第１押え部材２０の挿通孔に挿通して当該アンカーボルト４０が第１押え部材２０を貫通するように配置するとともに、第１押え部材２０を第１固定板部１１に対して第１コンクリート体１０１とは反対側から当接させた後、アンカーボルト４０の先端側にナット４１を螺合させて第１押え部材２０を締結する。これにより、第１押え部材２０が可撓部材１０の第１固定板部１１に対して押圧力を作用させ、第１固定板部１１が第１コンクリート体１０１の内側面に押しつけられて止水性を確保することができる。 Then, the anchor bolt 40 fixed to the first concrete body 101 is inserted into the insertion hole of the first pressing member 20, and the anchor bolt 40 is arranged so as to penetrate the first pressing member 20, and the first pressing member 20 is inserted. After the member 20 is brought into contact with the first fixing plate portion 11 from the side opposite to the first concrete body 101, the nut 41 is screwed into the tip side of the anchor bolt 40 to fasten the first pressing member 20. .. As a result, the first pressing member 20 exerts a pressing force on the first fixing plate portion 11 of the flexible member 10, and the first fixing plate portion 11 is pressed against the inner side surface of the first concrete body 101 to stop water. Can be secured.

尚、第２固定板部１２を第２コンクリート体１０２に固定する場合も、同様に、第１押え部材２０を使用することができる。 Similarly, when the second fixing plate portion 12 is fixed to the second concrete body 102, the first pressing member 20 can be used.

（第２押え部材３０の構成）
図１に示すように、第２押え部材３０は、第１押え部材２０が配置される箇所以外の箇所、すなわち、配管１０４に接近する箇所に配置され、当該箇所において、可撓部材１０の第１固定板部１１を第１コンクリート体１０１に固定し、また可撓部材１０の第２固定板部１２を第２コンクリート体１０２に固定するための部材である。 (Structure of 2nd presser member 30)
As shown in FIG. 1, the second pressing member 30 is arranged at a location other than the location where the first pressing member 20 is arranged, that is, at a location close to the pipe 104, and at that location, the flexible member 10 is located. 1 This is a member for fixing the fixing plate portion 11 to the first concrete body 101 and fixing the second fixing plate portion 12 of the flexible member 10 to the second concrete body 102.

図２及び図３に示すように、第２押え部材３０は、当接部材３１と支持部材３２とを備えている。当接部材３１と支持部材３２とは共に金属製の板材で構成することができるが、これに限られるものではなく、高剛性な部材で構成することができる。支持部材３２の断面係数は、当接部材３１の断面係数よりも大きく設定されている。つまり、支持部材３２の断面係数は、当接部材３１の断面係数よりも大きくなるように、支持部材３２及び当接部材３１の断面形状や各部の厚みが設定されているので、支持部材３２の方が当接部材３１よりも高剛性になり、同条件の荷重に対する変形量が小さくなる。また、この実施形態では、支持部材３２に十分な剛性を持たせるために、支持部材３２を構成する板材の厚みを、当接部材３１を構成する板材の厚みよりも厚く設定している。また、当接部材３１と支持部材３２とは、それぞれ、プレス成形によって得ることができる。 As shown in FIGS. 2 and 3, the second pressing member 30 includes a contact member 31 and a support member 32. Both the contact member 31 and the support member 32 can be made of a metal plate material, but the present invention is not limited to this, and can be made of a highly rigid member. The section modulus of the support member 32 is set to be larger than the section modulus of the contact member 31. That is, since the cross-sectional shape of the support member 32 and the contact member 31 and the thickness of each part are set so that the cross-sectional coefficient of the support member 32 is larger than the cross-sectional coefficient of the contact member 31, the support member 32 The rigidity is higher than that of the contact member 31, and the amount of deformation with respect to the load under the same conditions is smaller. Further, in this embodiment, in order to give the support member 32 sufficient rigidity, the thickness of the plate material constituting the support member 32 is set to be thicker than the thickness of the plate material constituting the contact member 31. Further, the contact member 31 and the support member 32 can be obtained by press forming, respectively.

当接部材３１は、可撓部材１０の第１固定板部１１に沿って延びるように形成され、当該第１固定板部１１に対して第１コンクリート体１０１とは反対側から当接する部材である。この当接部材３１は、アンカーボルト４０の並び方向に長い形状を持っており、第１固定板部１１に当接する部分である底板部３１ａと、底板部３１ａにおける両側縁部から上方（第１固定板部１１から離れる方向）へ延びる側板部３１ｂ、３１ｂとを有している。両側板部３１ｂ、３１ｂは互いに平行に延びている。底板部３１ａ及び側板部３１ｂ、３１ｂにより、当接部材３１は上方へ開放する断面を有することになる。 The abutting member 31 is a member that is formed so as to extend along the first fixing plate portion 11 of the flexible member 10 and abuts on the first fixing plate portion 11 from the side opposite to the first concrete body 101. is there. The contact member 31 has a long shape in the alignment direction of the anchor bolts 40, and is a portion that abuts on the first fixing plate portion 11 and is located above the bottom plate portion 31a and both side edges of the bottom plate portion 31a (first). It has side plate portions 31b and 31b extending in a direction away from the fixed plate portion 11. Both side plate portions 31b and 31b extend in parallel with each other. The bottom plate portion 31a and the side plate portions 31b, 31b cause the contact member 31 to have a cross section that opens upward.

図２に示すように、底板部３１ａにおけるアンカーボルト４０の配設位置に対応する部分には当該アンカーボルト４０が挿通する挿通孔３１ｄが形成されている。この実施形態では、２つの挿通孔３１ｄが当接部材３１の長手方向両側に位置するように形成されているが、これに限らず、３つ以上の挿通孔３１ｄが形成されていてもよい。挿通孔３１ｄの間隔は、アンカーボルト４０の間隔に対応しており、上述したように第２押え部材３０が設けられる箇所では、第１押え部材２０が設けられる箇所に比べてアンカーボルト４０の間隔が広いので、第１押え部材２０の挿通孔の間隔に比べて当接部材３１の挿通孔３１ｄの間隔の方が広くなる。 As shown in FIG. 2, an insertion hole 31d through which the anchor bolt 40 is inserted is formed in a portion of the bottom plate portion 31a corresponding to the arrangement position of the anchor bolt 40. In this embodiment, the two insertion holes 31d are formed so as to be located on both sides in the longitudinal direction of the contact member 31, but the present invention is not limited to this, and three or more insertion holes 31d may be formed. The spacing between the insertion holes 31d corresponds to the spacing between the anchor bolts 40, and as described above, the spacing between the anchor bolts 40 at the location where the second pressing member 30 is provided is higher than the spacing at the location where the first pressing member 20 is provided. The distance between the insertion holes 31d of the contact member 31 is wider than the distance between the insertion holes of the first pressing member 20.

支持部材３２は、当接部材３１を第１固定板部１１とは反対側から支持するように配置される部材であり、当接部材３１と同様にアンカーボルト４０の並び方向に長い形状を持っている。支持部材３２は、第１固定板部１１対して垂直な方向に延びるとともに、互いに間隔を開けて配置される第１側板部３２ｂ及び第２側板部３２ｃと、当該第１側板部３２ｂから当該第２側板部３２ｃまで延びる連結板部３２ａとを有するように形成されている。第１側板部３２ｂ及び第２側板部３２ｃは、当接部材３１の側板部３１ｂ、３１ｂの間に配置され、第１側板部３２ｂ及び第２側板部３２ｃの下端部は、当接部材３１の底板部３１ａに当接するようになっている。連結板部３２ａは、第１側板部３２ｂの上端部と第２側板部３２ｃの上端部とを連結する部分であり、従って、支持部材３２は下方へ開放する断面を有することになる。 The support member 32 is a member arranged so as to support the contact member 31 from the side opposite to the first fixing plate portion 11, and has a long shape in the arrangement direction of the anchor bolts 40 like the contact member 31. ing. The support member 32 extends in a direction perpendicular to the first fixed plate portion 11, and is arranged at intervals from the first side plate portion 32b and the second side plate portion 32c, and from the first side plate portion 32b to the first side plate portion 32b. It is formed so as to have a connecting plate portion 32a extending to the two side plate portions 32c. The first side plate portion 32b and the second side plate portion 32c are arranged between the side plate portions 31b and 31b of the contact member 31, and the lower end portions of the first side plate portion 32b and the second side plate portion 32c are of the contact member 31. It comes into contact with the bottom plate portion 31a. The connecting plate portion 32a is a portion that connects the upper end portion of the first side plate portion 32b and the upper end portion of the second side plate portion 32c, and therefore the support member 32 has a cross section that opens downward.

連結板部３２ａにおけるアンカーボルト４０の配設位置に対応する部分には、当該アンカーボルト４０が挿通する２つの挿通孔３２ｄが支持部材３２の長手方向両側に位置するように形成されている。また、支持部材３２におけるアンカーボルト４０、４０の間の部分、即ち２つの挿通孔３２ｄ、３２ｄの間の部分には、当接部材３１を第１固定板部１１に押圧可能な押圧手段としての押圧用ボルト３３が設けられている。押圧用ボルト３３は、支持部材３２の連結板部３２ａに螺合する部材である。 In the portion of the connecting plate portion 32a corresponding to the arrangement position of the anchor bolt 40, two insertion holes 32d through which the anchor bolt 40 is inserted are formed so as to be located on both sides in the longitudinal direction of the support member 32. Further, in the portion of the support member 32 between the anchor bolts 40 and 40, that is, the portion between the two insertion holes 32d and 32d, the contact member 31 can be pressed against the first fixing plate portion 11 as a pressing means. A pressing bolt 33 is provided. The pressing bolt 33 is a member that is screwed into the connecting plate portion 32a of the support member 32.

すなわち、図４に示すように連結板部３２ａには、２つの挿通孔３２ｄ、３２ｄの間の部分に貫通孔３２ｅが形成されており、図３に示すように、連結板部３２ａの下面には、貫通孔３２ｅと一致するようにナット（螺合部材）３４が設けられている。押圧用ボルト３３は、その軸部が連結板部３２ａの貫通孔３２ｅに挿通された状態でナット３４に螺合することによって支持部材３２に取り付けられる。押圧用ボルト３３の頭部は、連結板部３２ａの上方に位置するように配置される。また、押圧用ボルト３３の軸部の長さは、押圧用ボルト３３を締め込んでいったとき（押圧用ボルト３３が下方へ移動する方向に回転したとき）、軸部の先端が当接部材３１の底板部３１ａの上面に当接するように設定されている。 That is, as shown in FIG. 4, the connecting plate portion 32a is formed with a through hole 32e in a portion between the two insertion holes 32d and 32d, and as shown in FIG. 3, the lower surface of the connecting plate portion 32a is formed. Is provided with a nut (screw member) 34 so as to coincide with the through hole 32e. The pressing bolt 33 is attached to the support member 32 by being screwed into the nut 34 with its shaft portion inserted into the through hole 32e of the connecting plate portion 32a. The head of the pressing bolt 33 is arranged so as to be located above the connecting plate portion 32a. Further, the length of the shaft portion of the pressing bolt 33 is such that when the pressing bolt 33 is tightened (when the pressing bolt 33 rotates in the downward moving direction), the tip of the shaft portion is a contact member. It is set to come into contact with the upper surface of the bottom plate portion 31a of 31.

尚、押圧用ボルト３３は、１つであってもよいし、２つ以上設けてもよい。押圧用ボルト３３を２つ以上設ける場合には、支持部材３２の長手方向に互いに間隔をあけて設ければよい。 The number of pressing bolts 33 may be one, or two or more may be provided. When two or more pressing bolts 33 are provided, they may be provided at intervals in the longitudinal direction of the support member 32.

図２に示すように、アンカーボルト４０を、可撓継手１０の第１固定板部１１の挿通孔１１ａ、当接部材３１の挿通孔３１ｄ及び支持部材３２の挿通孔３２ｄに挿通させることで、アンカーボルト４０が可撓継手１０の第１固定板部１１、当接部材３１及び支持部材３２を貫通した状態になる。アンカーボルト４０の先端側にナット４１を螺合することで支持部材３２を締結することができるようになっている。 As shown in FIG. 2, the anchor bolt 40 is inserted into the insertion hole 11a of the first fixing plate portion 11 of the flexible joint 10, the insertion hole 31d of the contact member 31, and the insertion hole 32d of the support member 32. The anchor bolt 40 penetrates the first fixing plate portion 11, the contact member 31, and the support member 32 of the flexible joint 10. The support member 32 can be fastened by screwing the nut 41 to the tip end side of the anchor bolt 40.

尚、第２固定板部１２を第２コンクリート体１０２に固定する場合も、同様に、第２押え部材３０を使用することができる。 Similarly, when the second fixing plate portion 12 is fixed to the second concrete body 102, the second pressing member 30 can be used.

（可撓継手１０の固定方法）
次に、可撓継手１０の固定方法について説明する。第１押え部材２０による固定方法は一般的な方法であるため、詳細な説明を省略する。以下、第２押さえ部材３０を使用した可撓継手１０の固定方法について詳細に説明する。 (Fixing method of flexible joint 10)
Next, a method of fixing the flexible joint 10 will be described. Since the fixing method by the first pressing member 20 is a general method, detailed description thereof will be omitted. Hereinafter, a method of fixing the flexible joint 10 using the second pressing member 30 will be described in detail.

まず、図６に示すように、複数のアンカーボルト４０を目地１０３に沿う方向に互いに間隔をあけて第１コンクリート体１０１及び第２コンクリート体１０２に埋め込んで固定するアンカーボルト固定工程を行う。アンカーボルト４０を固定した後、可撓部材１０の第１固定板部１１の挿通孔１１ａ及び第２固定板部１２の挿通孔１２ａにそれぞれアンカーボルト４０を挿通させて可撓部材１０を位置決めする。 First, as shown in FIG. 6, an anchor bolt fixing step is performed in which a plurality of anchor bolts 40 are embedded and fixed in the first concrete body 101 and the second concrete body 102 at intervals in the direction along the joint 103. After fixing the anchor bolt 40, the anchor bolt 40 is inserted into the insertion hole 11a of the first fixing plate portion 11 and the insertion hole 12a of the second fixing plate portion 12 of the flexible member 10 to position the flexible member 10. ..

その後、図７に示すように第２押え部材３０を位置決めする。このとき、当接部材３１の挿通孔３１ｄ及び支持部材３２の挿通孔３２ｃにそれぞれアンカーボルト４０を挿通させる。以上に工程により、複数のアンカーボルト４０が、可撓部材１０の第１固定板部１１、当接部材３１及び支持部材３２を貫通した状態になる。 After that, the second pressing member 30 is positioned as shown in FIG. At this time, the anchor bolts 40 are inserted into the insertion holes 31d of the contact member 31 and the insertion holes 32c of the support member 32, respectively. Through the above steps, the plurality of anchor bolts 40 are in a state of penetrating the first fixing plate portion 11, the contact member 31, and the support member 32 of the flexible member 10.

次いで、図２に示すように、各アンカーボルト４０の先端側にナット４１を螺合して支持部材３２を締結する締結工程を行う。支持部材３２を締結すると、支持部材３２が当接部材３１を可撓継手１０の第１固定板部１１に押しつけ、これにより、第１固定板部１１が第１コンクリート体１０１に押しつけられる。第２固定板部１２も同様に第２コンクリート体１０２に押しつけられる。 Next, as shown in FIG. 2, a fastening step is performed in which the nut 41 is screwed onto the tip end side of each anchor bolt 40 to fasten the support member 32. When the support member 32 is fastened, the support member 32 presses the contact member 31 against the first fixing plate portion 11 of the flexible joint 10, whereby the first fixing plate portion 11 is pressed against the first concrete body 101. The second fixing plate portion 12 is also pressed against the second concrete body 102 in the same manner.

このとき、上述したように隣合うアンカーボルト４０、４０の間隔が広くなっているので、アンカーボルト４０、４０の間においては第１固定板部１１の第１コンクリート体１０１への押しつけ力が弱まる懸念があるが、この実施形態では、図１に示すように、支持部材３２におけるアンカーボルト４０、４０の間の部分に、当接部材３１を第１固定板部１１に押圧可能な押圧用ボルト３３が設けられているので、この押圧用ボルト３３により、アンカーボルト４０、４０の間においても第１固定板部１１の第１コンクリート体１０１への押しつけ力を高めることができる。これが押圧工程であり、締結工程の後に行うことができる。 At this time, since the distance between the adjacent anchor bolts 40 and 40 is wide as described above, the pressing force of the first fixing plate portion 11 against the first concrete body 101 is weakened between the anchor bolts 40 and 40. Although there is a concern, in this embodiment, as shown in FIG. 1, a pressing bolt capable of pressing the contact member 31 against the first fixing plate portion 11 in the portion between the anchor bolts 40 and 40 in the support member 32. Since 33 is provided, the pressing bolt 33 can increase the pressing force of the first fixing plate portion 11 against the first concrete body 101 even between the anchor bolts 40 and 40. This is the pressing process, which can be performed after the fastening process.

詳しくは、図３に示すように、押圧用ボルト３３を締め込み方向に回すことで、押圧用ボルト３３の軸部の先端が当接部材３１の底板部３１ａに対して下向きの力を作用させる。これにより、第１固定板部１１におけるアンカーボルト４０、４０の間の部分に対して第１コンクリート体１０１への押しつけ力を作用させることができる。押圧用ボルト３３の回転量によって第１固定板部１１に作用する押しつけ力を無段階に変化させることができる。アンカーボルト４０による締結箇所と同じ程度の押しつけ力となるまで、押圧用ボルト３３を回せばよい。第２固定板部１２も同様である。 Specifically, as shown in FIG. 3, by turning the pressing bolt 33 in the tightening direction, the tip of the shaft portion of the pressing bolt 33 exerts a downward force on the bottom plate portion 31a of the contact member 31. .. As a result, a pressing force against the first concrete body 101 can be applied to the portion between the anchor bolts 40 and 40 in the first fixing plate portion 11. The pressing force acting on the first fixing plate portion 11 can be steplessly changed by the amount of rotation of the pressing bolt 33. The pressing bolt 33 may be turned until the pressing force is about the same as that of the anchor bolt 40. The same applies to the second fixing plate portion 12.

（実施形態の作用効果）
以上説明したように、この実施形態によれば、第１コンクリート体１０１に埋め込まれた複数のアンカーボルト４０が目地１０３に沿う方向に互いに間隔をあけて設けられているので、第１コンクリート体１０１の近傍に存在している配管１０４を避けることができるように、隣合うアンカーボルト４０、４０の間隔を広くすることや、第１コンクリート体１０１の下地の状態が悪い箇所を避けるように、隣合うアンカーボルト４０、４０の間隔を広くすることができる。 (Action effect of embodiment)
As described above, according to this embodiment, since the plurality of anchor bolts 40 embedded in the first concrete body 101 are provided at intervals in the direction along the joint 103, the first concrete body 101 The distance between the adjacent anchor bolts 40 and 40 should be widened so that the pipe 104 existing in the vicinity of the first concrete body 101 should be avoided, and the adjacent anchor bolts 40 and 40 should be placed next to each other so as to avoid a poorly grounded portion. The distance between the matching anchor bolts 40 and 40 can be widened.

そして、アンカーボルト４０、４０によって支持部材３２の両側を締結するとともに、支持部材３２におけるアンカーボルト４０、４０の間の部分に、当接部材３１を第１固定板部１１に押圧可能な押圧用ボルト３３を設けているので、この押圧用ボルト３３により、アンカーボルト４０、４０の間においても第１固定板部１１の第１コンクリート体１０１への押しつけ力を高めることができる。つまり、第１コンクリート体１０１に埋め込まれるアンカーボルト４０の設置が任意に行えない場合であっても、可撓継手１０の第１固定板部１１を第１コンクリート体１０１に対して止水性を確保した状態で固定できる。第２固定板部１２も同様である。 Then, both sides of the support member 32 are fastened by the anchor bolts 40, 40, and the contact member 31 can be pressed against the first fixing plate portion 11 at the portion between the anchor bolts 40, 40 in the support member 32. Since the bolts 33 are provided, the pressing bolts 33 can increase the pressing force of the first fixing plate portion 11 against the first concrete body 101 even between the anchor bolts 40 and 40. That is, even if the anchor bolt 40 embedded in the first concrete body 101 cannot be installed arbitrarily, the first fixing plate portion 11 of the flexible joint 10 ensures water stoppage with respect to the first concrete body 101. Can be fixed in the state of being. The same applies to the second fixing plate portion 12.

上述の実施形態はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。さらに、特許請求の範囲の均等範囲に属する変形や変更は、全て本発明の範囲内のものである。 The above embodiments are merely exemplary in all respects and should not be construed in a limited way. Furthermore, all modifications and modifications that fall within the equivalent scope of the claims are within the scope of the present invention.

例えば、図８に示すように、構造物１００の角部近傍に配管１０４が配設されている場合には、可撓継手１０の角部を含む範囲を固定可能となるように、第２押え部材３０を形成することができる。この例では、第２押え部材３０が水平に延びる部分と上下方向に延びる部分とで構成されており、水平に延びる部分と、上下方向に延びる部分とは別体とされてそれぞれの端部が接触し、互いに係合した状態で設置されている。水平に延びる部分と、上下方向に延びる部分にそれぞれ押圧用ボルト３３を設けることができる。第２押え部材３０の形状は、可撓継手１０の形状に合わせて任意の形状にすることができる。 For example, as shown in FIG. 8, when the pipe 104 is arranged near the corner of the structure 100, the second presser can be fixed so that the range including the corner of the flexible joint 10 can be fixed. The member 30 can be formed. In this example, the second pressing member 30 is composed of a horizontally extending portion and a vertically extending portion, and the horizontally extending portion and the vertically extending portion are separated from each other and their respective ends are separated. They are installed in contact and engaged with each other. Pressing bolts 33 can be provided on the horizontally extending portion and the vertically extending portion, respectively. The shape of the second pressing member 30 can be any shape according to the shape of the flexible joint 10.

以上説明したように、本発明に係る可撓継手の固定構造及び固定方法は、例えば地中に構築されるコンクリートからなる構造物などの目地を止水する場合に利用することができる。 As described above, the fixing structure and fixing method of the flexible joint according to the present invention can be used when water is stopped at a joint such as a structure made of concrete constructed in the ground.

１０ 可撓継手
１１ 第１固定板部
１２ 第２固定板部
３０ 第２押え部材
３１ 当接部材
３２ 支持部材
３２ａ 連結板部
３２ｂ 第１側板部
３２ｃ 第２側板部
３３ 押圧用ボルト（押圧手段）
３４ ナット（螺合部材）
４０ アンカーボルト
４１ ナット
１０１ 第１コンクリート体
１０２ 第２コンクリート体
１０３ 目地 10 Flexible joint 11 1st fixing plate part 12 2nd fixing plate part 30 2nd pressing member 31 Contact member 32 Supporting member 32a Connecting plate part 32b 1st side plate part 32c 2nd side plate part 33 Pressing bolt (pressing means)
34 Nut (screw member)
40 Anchor bolt 41 Nut 101 1st concrete body 102 2nd concrete body 103 Joint

Claims (6)

第１コンクリート体と第２コンクリート体との間に形成される目地を覆うように設置される可撓継手を押え部材及び複数のアンカーボルトによって当該第１コンクリート体及び第２コンクリート体に固定する可撓継手の固定構造において、
前記可撓継手は、前記目地に沿うように延び、前記第１コンクリート体及び前記第２コンクリート体にそれぞれ固定される第１固定板部及び第２固定板部と、前記第１固定板部及び前記第２固定板部の間に形成され、当該固定板部の厚み方向に膨出する膨出部とを備え、
前記押さえ部材は、前記第１固定板部に沿って延びるように形成され、当該第１固定板部に対して前記第１コンクリート体とは反対側から当接する当接部材と、当該当接部材を前記第１固定板部とは反対側から支持するように配置される支持部材とを備え、
前記アンカーボルトは、前記目地に沿う方向に互いに間隔をあけて複数設けられ、前記第１コンクリート体に埋め込まれた状態で固定されるとともに、前記第１固定板部、前記当接部材及び前記支持部材を貫通しており、前記アンカーボルトの先端側にナットが螺合されて前記支持部材が締結され、
前記支持部材における前記アンカーボルトの間の部分には、前記当接部材を前記第１固定板部に押圧可能な押圧手段が設けられていることを特徴とする可撓継手の固定構造。 A flexible joint installed so as to cover the joint formed between the first concrete body and the second concrete body can be fixed to the first concrete body and the second concrete body by a holding member and a plurality of anchor bolts. In the fixed structure of flexible joints
The flexible joint extends along the joints and is fixed to the first concrete body and the second concrete body, respectively, with the first fixing plate portion and the second fixing plate portion, and the first fixing plate portion and the first fixing plate portion. It is provided with a bulging portion formed between the second fixing plate portions and bulging in the thickness direction of the fixing plate portion.
The holding member is formed so as to extend along the first fixing plate portion, and a contact member that contacts the first fixing plate portion from the side opposite to the first concrete body, and the contact member. Is provided with a support member arranged so as to support from the side opposite to the first fixing plate portion.
A plurality of the anchor bolts are provided at intervals along the joint, and are fixed in a state of being embedded in the first concrete body, and the first fixing plate portion, the contact member, and the support are provided. It penetrates the member, and a nut is screwed to the tip side of the anchor bolt to fasten the support member.
A structure for fixing a flexible joint, characterized in that a pressing means capable of pressing the contact member against the first fixing plate portion is provided in a portion of the support member between the anchor bolts. 請求項１に記載の可撓継手の固定構造において、
前記押圧手段は、前記支持部材に螺合するボルトであることを特徴とする可撓継手の固定構造。 In the fixed structure of the flexible joint according to claim 1,
The pressing means is a fixed structure of a flexible joint, characterized by being a bolt screwed into the support member. 請求項２に記載の可撓継手の固定構造において、
前記支持部材は、前記第１固定板部に対して垂直な方向に延びるとともに、互いに間隔を開けて配置される第１側板部及び第２側板部と、当該第１側板部から当該第２側板部まで延びる連結板部とを有するように形成されており、
前記連結板部には、前記ボルトが螺合する螺合部材が設けられていることを特徴とする可撓継手の固定構造。 In the fixed structure of the flexible joint according to claim 2,
The support member extends in a direction perpendicular to the first fixing plate portion, and has a first side plate portion and a second side plate portion arranged at intervals from each other, and a second side plate portion from the first side plate portion. It is formed so as to have a connecting plate portion extending to the portion.
A flexible joint fixing structure, characterized in that the connecting plate portion is provided with a screwing member into which the bolt is screwed. 請求項１から３のいずれか１つに記載の可撓継手の固定構造において、
前記支持部材の断面係数は、前記当接部材の断面係数よりも大きいことを特徴とする可撓継手の固定構造。 In the fixing structure of the flexible joint according to any one of claims 1 to 3,
A fixed structure of a flexible joint, characterized in that the cross-sectional coefficient of the support member is larger than the cross-sectional coefficient of the contact member. 第１コンクリート体と第２コンクリート体との間に形成される目地を覆うように設置される可撓継手を押え部材及び複数のアンカーボルトによって当該第１コンクリート体及び第２コンクリート体に固定する可撓継手の固定方法において、
前記可撓継手は、前記目地に沿うように延び、前記第１コンクリート体及び前記第２コンクリート体にそれぞれ固定される第１固定板部及び第２固定板部と、前記第１固定板部及び前記第２固定板部の間に形成され、当該固定板部の厚み方向に膨出する膨出部とを備え、
前記押さえ部材は、前記第１固定板部に沿って延びるように形成され、当該第１固定板部に対して前記第１コンクリート体とは反対側から当接する当接部材と、当該当接部材を前記第１固定板部とは反対側から支持するように配置される支持部材とを備え、
複数の前記アンカーボルトを前記目地に沿う方向に互いに間隔をあけて前記第１コンクリート体に埋め込んで固定するアンカーボルト固定工程と、
複数の前記アンカーボルトを、前記第１固定板部、前記当接部材及び前記支持部材を貫通させ、前記アンカーボルトの先端側にナットを螺合して前記支持部材を締結する締結工程と、
前記支持部材における前記アンカーボルトの間の部分に設けられた押圧手段によって前記当接部材を前記第１固定板部に押圧する押圧工程とを備えていることを特徴とする可撓継手の固定方法。 A flexible joint installed so as to cover the joint formed between the first concrete body and the second concrete body can be fixed to the first concrete body and the second concrete body by a holding member and a plurality of anchor bolts. In the method of fixing flexible joints,
The flexible joint extends along the joints and is fixed to the first concrete body and the second concrete body, respectively, with the first fixing plate portion and the second fixing plate portion, and the first fixing plate portion and the first fixing plate portion. It is provided with a bulging portion formed between the second fixing plate portions and bulging in the thickness direction of the fixing plate portion.
The holding member is formed so as to extend along the first fixing plate portion, and a contact member that contacts the first fixing plate portion from the side opposite to the first concrete body, and the contact member. Is provided with a support member arranged so as to support from the side opposite to the first fixing plate portion.
Anchor bolt fixing step of embedding and fixing a plurality of the anchor bolts in the first concrete body at intervals in the direction along the joint, and
A fastening step in which a plurality of the anchor bolts are passed through the first fixing plate portion, the contact member, and the support member, and a nut is screwed into the tip side of the anchor bolt to fasten the support member.
A method for fixing a flexible joint, which comprises a pressing step of pressing the contact member against the first fixing plate portion by a pressing means provided in a portion between the anchor bolts in the support member. .. 請求項５に記載の可撓継手の固定方法において、
前記押圧工程は前記締結工程の後に行うことを特徴とする可撓継手の固定方法。 In the method for fixing a flexible joint according to claim 5,
A method for fixing a flexible joint, wherein the pressing step is performed after the fastening step.
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