JP2011184925A - Water-stop joint structure of placing-joint surface and connecting joint part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-stop joint structure of a placing-joint surface and a connecting joint part by which water stop performance at the placing-joint surface of a concrete structure, water stop performance at the connecting joint part, and absorption of relative displacement can be achieved, and water stop between a joint fitting frame body to which a flexible water stop joint is fitted and concrete can be secured. <P>SOLUTION: The flexible water stop joint 8 and the placing-joint water stop member 5 are allowed to continue to each other to secure the water stop performance of both of the connecting joint part 4 and the placing-joint surface 3 by connecting an end 5a of a joint side of the placing-joint water stop member 5 with a sealing member 11 of the joint fitting frame body 9. All of the members 5, 8, 11 for water stop are allowed to continue to widen an installation area on the sealing member 11 of the joint fitting frame body 9 to improve the water stop performance by placing the sealing member 11 on the whole periphery of the joint fitting frame body 9 which is in contact with the concrete and connecting the same with the placing-joint water stop member 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、打ち継ぎ面および連結目地部の止水継手構造に関し、洞道、上下水道、地下鉄、共同溝等の中空のコンクリート構造体同士の連結目地部および中空コンクリート構造体自体の打ち継ぎ面の止水性を向上できるようにしたものである。   The present invention relates to a water-stopping joint structure of a joint surface and a joint portion, and relates to a joint portion between hollow concrete structures such as a cave, a water and sewage system, a subway, and a joint groove, and a joint surface of the hollow concrete structure itself. It is intended to improve the water-stopping property.

コンクリート構造物の施工にあたり、コンクリートを打ち継いで構築することも多く、躯体の規模、コンクリートの打設量の限度、型枠支保工にかかるコンクリート荷重などを考慮し、複数回の打ち継ぎが行われる場合もあり、例えば図１２に示すコンクリート構造物１では、各コンクリート構造体１ａ，１ｂをそれぞれ上下２箇所に打ち継ぎ面２，３を設けて打ち継いで構築するとともに、コンクリート構造体１ａ，１ｂ同士も連結目地部４を介して順次構築することが行われる。   When constructing a concrete structure, it is often built by handing over concrete, and multiple joints are performed in consideration of the size of the frame, the limit of the amount of concrete placed, and the concrete load applied to formwork support. For example, in the concrete structure 1 shown in FIG. 12, the concrete structures 1 a and 1 b are constructed by providing the joint surfaces 2 and 3 at two upper and lower portions, respectively. 1b is also constructed sequentially through the connection joint 4.

このようなコンクリート構造物１では、打ち継ぎ面２,３での止水と、コンクリート構造体１ａ，１ｂ間の連結目地部４での止水および地盤の不等沈下や地震、あるいは温度変化などに伴なう相対変位を吸収できるようにする必要がある。   In such a concrete structure 1, the water stop at the joint surfaces 2 and 3, the water stop at the joint portion 4 between the concrete structures 1a and 1b, the uneven settlement of the ground, the earthquake, or the temperature change, etc. It is necessary to be able to absorb the relative displacement associated with.

このため、例えば打ち継ぎ面３上での平面状態を示す図１３のように、水平な打ち継ぎ面３の上下のコンクリート間に垂直に帯状の打ち継ぎ止水材５を介装して打ち継ぎ面３の止水を行う。また、連結目地部４を止水するためコンクリート構造物１ａ，１ｂの連結目地部４の打ち継ぎ止水材５より外側にゴム止水板６を介装するとともに、外面側（土砂側）には、防水シート７を取り付ける。さらに、コンクリート構造物１の内面側には、相対変位の吸収と止水のため可撓止水継手８を取り付けるようにしており、互いに対向する一対のコンクリート構造物１ａ、１ｂの対向端部に形成した段差部に、筒状の枠体９をそれぞれ碇着させるとともに、ゴム・合成樹脂等の弾性体からなる短筒状に形成した可撓止水継手８の両端部を、枠体９の内周面に水密的に取り付けて地盤の不等沈下や地震などに伴なうコンクリート構造物１ａ，１ｂの相対変位を吸収させ止水を行なうようにしたものがある。なお、図中、１０は継手の外周側に介在させた目地材である（特許文献１〜３参照）。   For this reason, for example, as shown in FIG. 13 which shows a planar state on the joint surface 3, the belt-like joint water-stopping material 5 is vertically interposed between the upper and lower concrete of the horizontal joint surface 3. Stop water on surface 3. Moreover, in order to stop the joint joint part 4, a rubber water stop plate 6 is interposed outside the joint water stop material 5 of the joint joint part 4 of the concrete structures 1 a and 1 b, and on the outer surface side (the earth and sand side). Attach the waterproof sheet 7. Further, a flexible waterproof joint 8 is attached to the inner surface side of the concrete structure 1 to absorb relative displacement and to stop water, and at opposite ends of the pair of concrete structures 1a and 1b facing each other. The cylindrical frame body 9 is attached to the formed stepped portions, and both ends of the flexible waterproof joint 8 formed in a short cylindrical shape made of an elastic body such as rubber or synthetic resin are connected to the frame body 9. Some water-tightly attached to the inner peripheral surface absorbs the relative displacement of the concrete structures 1a and 1b due to uneven settlement of the ground or an earthquake, and performs water stopping. In the figure, reference numeral 10 denotes a joint material interposed on the outer peripheral side of the joint (see Patent Documents 1 to 3).

特公昭６３−５８９８２号公報Japanese Patent Publication No. 63-58982 特開平８−２８４１８６号公報JP-A-8-284186 特開平１０−１８３９５号公報Japanese Patent Laid-Open No. 10-18395

このようなコンクリート構造物１では、防水シート７が破断したり、剥離した場合には、連結目地部４に浸水する。この外面側から連結目地部４への浸水は、図１３（ａ）中に太い矢印で示すように、打ち継ぎ面３に沿ってゴム止水板６を迂回し、さらに打ち継ぎ止水材５に沿って連結目地部４を介して打ち継ぎ止水材５を迂回して打ち継ぎ面３に沿って浸水し、枠体９および可撓止水継手８の外側からコンクリート構造物１の内面側に至って漏水となるという問題がある。   In such a concrete structure 1, when the waterproof sheet 7 is broken or peeled off, the joint joint 4 is submerged. As shown by a thick arrow in FIG. 13A, the inundation from the outer surface side to the joint portion 4 bypasses the rubber water stop plate 6 along the joint surface 3, and further the joint water stop material 5 Along the joint joint 4 to bypass the joint water-stopping material 5 and to submerge water along the joint surface 3, and from the outside of the frame body 9 and the flexible water joint 8 to the inner surface side of the concrete structure 1 There is a problem of water leakage.

また、コンクリートの打ち継ぎを行う場合、先打ちコンクリートの表面にレイタンス等雑物が付着し、これによって打ち継ぎ面におけるコンクリート同士の付着力が低下することで、打ち継ぎ面を伝う浸水の要因となるという問題があり、特に継手近傍で顕著となるという問題がある。   In addition, when concrete is spliced, impurities such as latency are attached to the surface of the precast concrete, which reduces the adhesion between concrete on the spliced surface. There is a problem that it becomes remarkable especially in the vicinity of the joint.

また、可撓止水継手８を取り付けるための筒状の枠体９を予め設置した状態で、コンクリートを打設してコンクリート構造物１ｂを構築する場合に、図１３（ｂ）に示すように、枠体９とコンクリートとの間に、ジャンカ、気泡跡、コンクリートの乾燥収縮を起因とする水密性の低下が危惧され、連結目地部４からの浸水が打ち継ぎ面３だけでなく、これら水密性のより悪い位置に回り、可撓止水継手８の近傍からの漏水に至るという問題がある。   Further, when a concrete structure 1b is constructed by placing concrete in a state where a cylindrical frame 9 for attaching the flexible waterproof joint 8 is previously installed, as shown in FIG. 13 (b). In addition, there is a concern that the watertightness may be lowered between the frame body 9 and the concrete due to the drying shrinkage of the junker, the bubble, and the concrete, so that the water from the joint joint 4 is not only the joint surface 3 but also the watertightness. There is a problem in that the water leaks from the vicinity of the flexible water-stopping joint 8 by turning to a position having a worse property.

この発明は、上記従来技術の問題点に鑑みてなされたもので、コンクリート構造物の打ち継ぎ面での止水性および連結目地部の止水性や相対変位の吸収ができるとともに、可撓止水継手を取り付ける継手取付枠体とコンクリートとの間の止水性を確保することができる打ち継ぎ面および連結目地部の止水継手構造を提供しようとするものである。   The present invention has been made in view of the above-mentioned problems of the prior art, and is capable of absorbing water-stopping at a joint surface of a concrete structure, water-stopping at a joint joint and relative displacement, and a flexible water-stopping joint. It is an object of the present invention to provide a water-stopping joint structure for a joint surface and a joint joint that can ensure water-stopping between a joint mounting frame body and concrete.

連結目地部および打ち継ぎ面を備えるコンクリート構造物での漏水について鋭意検討を重ねた結果、連結目地部を止水する可撓止水継手と打ち継ぎ面を止水する打ち継ぎ止水部材とが独立して設置されるため、これらの間から漏水が生じることが分かり、この発明を完成したものである。   As a result of intensive studies on water leakage in a concrete structure having a joint and a joint surface, a flexible water-stopping joint that stops the joint and a joint water-stopping member that stops the joint surface. Since it is installed independently, it turns out that water leaks between these, and has completed this invention.

すなわち、この発明では、具体的な対策として、可撓止水継手と打ち継ぎ止水部材とを連続させることで、連結目地部および打ち継ぎ面双方の止水性の確保を可能とするとともに、継手取付枠体を目地部の外側に延長し全周にブチルゴムなどのシール部材を設置することなどで、継手取付枠体のシール部材の設置範囲を広げて止水性の向上を可能としたものである。   That is, in the present invention, as a specific measure, the flexible water-stop joint and the joint water-stopping member are made continuous so that it is possible to ensure water-stopping at both the joint joint and the joint surface, and the joint. By extending the mounting frame to the outside of the joint and installing a sealing member such as butyl rubber around the entire circumference, the installation range of the sealing member of the joint mounting frame can be expanded to improve water-stopping performance. .

上記従来技術の課題を解決するこの発明の請求項１記載の打ち継ぎ面および連結目地部の止水継手構造は、それぞれが打ち継ぎ面を介してコンクリートを打ち継いで構築される先行および後行の中空コンクリート構造体の前記それぞれのコンクリート構造体の打ち継ぎ面を止水するとともに、前記先行および後行のコンクリート構造体同士を連結する連結目地部を相対変位可能に止水するコンクリート構造体の打ち継ぎ面および連結目地部の止水継手構造であって、前記先行および後行のコンクリート構造体の連結目地部の内面側に、可撓止水継手を取り付ける筒状の継手取付枠体を設置し、これら相対向する継手取付枠体に連結目地部を跨いで短筒状の可撓止水継手を取り付け、前記それぞれの打ち継ぎ面には、打ち継ぎ面を挟む両側のコンクリート間に埋設して止水する打ち継ぎ止水部材を設置するとともに、この打ち継ぎ止水部材の目地部側の端部を前記継手取付枠体と連結して構成したことを特徴とするものである。   According to claim 1 of the present invention for solving the problems of the prior art, the water-stopping joint structure of the joint surface and the connection joint is constructed by preceding and following each of which is constructed by jointing the concrete through the joint surface. Of the hollow concrete structure of each of the concrete structures, the joint surface of each of the concrete structures is water-stopped, and the joint joint that connects the preceding and subsequent concrete structures is water-stopped so as to be relatively displaceable. A water-stopping joint structure for the joint surface and connecting joint, and a cylindrical joint mounting frame for attaching a flexible water-stopping joint is installed on the inner surface of the connecting joint of the preceding and succeeding concrete structures. Then, a short cylindrical flexible water-stopping joint is attached to these opposing joint mounting frames across the joint joint, and the joints on both sides sandwiching the joint surface are attached to the respective joint surfaces. A joint water stop member that is buried between cleats to stop water is installed, and the joint side end of the joint water stop member is connected to the joint mounting frame. It is.

この発明の請求項２記載の打ち継ぎ面および連結目地部の止水継手構造は、請求項１記載の構成に加え、前記継手取付枠体のコンクリートと接触する全周または一部にシール部材を設置し、前記打ち継ぎ止水部材の端部と前記シール部材とを連結して構成したことを特徴とするものである。   According to a second aspect of the present invention, in addition to the structure according to the first aspect, the sealing joint structure of the joint surface and the connection joint is provided with a seal member on the entire circumference or a part of the joint mounting frame that contacts the concrete. It is installed and constituted by connecting an end portion of the joint water-stopping member and the seal member.

この発明の請求項３記載の打ち継ぎ面および連結目地部の止水継手構造は、請求項１または２記載の構成に加え、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に形成した延設部または前記打ち継ぎ止水部材と対応して前記継手取付枠体部分に形成した延設部で行う構成としたことを特徴とするものである。   According to a third aspect of the present invention, in addition to the structure of the first or second aspect, the joint surface of the joint surface and the connection joint portion has a joint portion-side end portion and the joint attachment. The frame or the seal member is connected by an extended portion formed on the entire circumference of the joint mounting frame or an extended portion formed on the joint mounting frame corresponding to the joint water stop member. It is characterized by having a configuration.

この発明の請求項４記載の打ち継ぎ面および連結目地部の止水継手構造は、請求項１〜３のいずれかに記載の構成に加え、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に設けた補助連結部材または前記打ち継ぎ止水部材に対応して設けた補助連結部材を介して行う構成としたことを特徴とするものである。   According to a fourth aspect of the present invention, in addition to the structure according to any one of the first to third aspects, the joint portion of the joint surface and the connection joint portion of the present invention has an end portion on the joint portion side of the joint water stop member. And the joint mounting frame or the seal member are connected via an auxiliary connecting member provided on the entire circumference of the joint mounting frame or an auxiliary connecting member provided corresponding to the joint water stop member. It is characterized by that.

この発明の請求項５記載の打ち継ぎ面および連結目地部の止水継手構造は、請求項１〜４のいずれかに記載の構成に加え、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、ブチルゴムを介して接着する、あるいはボルト・ナットで締結する、もしくはその両方を行う構成としたことを特徴とするものである。   According to a fifth aspect of the present invention, in addition to the structure described in any one of the first to fourth aspects, the joint surface and the joint joint structure of the joint surface according to the fifth aspect of the present invention include an end portion on the joint part side of the joint joint member. And the joint mounting frame or the seal member are bonded to each other via butyl rubber, fastened with bolts and nuts, or both.

この発明の請求項１記載の打ち継ぎ面および連結目地部の止水継手構造によれば、それぞれが打ち継ぎ面を介してコンクリートを打ち継いで構築される先行および後行の中空コンクリート構造体の前記それぞれのコンクリート構造体の打ち継ぎ面を止水するとともに、前記先行および後行のコンクリート構造体同士を連結する連結目地部を相対変位可能に止水するコンクリート構造体の打ち継ぎ面および連結目地部の止水継手構造であって、前記先行および後行のコンクリート構造体の連結目地部の内面側に、可撓止水継手を取り付ける筒状の継手取付枠体を設置し、これら相対向する継手取付枠体に連結目地部を跨いで短筒状の可撓止水継手を取り付け、前記それぞれの打ち継ぎ面には、打ち継ぎ面を挟む両側のコンクリート間に埋設して止水する打ち継ぎ止水部材を設置するとともに、この打ち継ぎ止水部材の目地部側の端部を前記継手取付枠体と連結して構成したので、打ち継ぎ止水部材の目地部側の端部と継手取付枠体と連結することで、可撓止水継手と打ち継ぎ止水部材とを連続させることができ、全ての止水のための部材が連続することになって止水性の向上をはかることができる。また、コンクリートの打ち継ぎを行う場合、先打ちコンクリートの表面にレイタンス等雑物が付着し、これによって打ち継ぎ面におけるコンクリート同士の付着力が低下するようなことがあっても、可撓止水継手と打ち継ぎ止水部材とが連続することで、打ち継ぎ面を伝う浸水を防止することができる。   According to the water-stopping joint structure of the joint surface and the connection joint portion according to the first aspect of the present invention, each of the preceding and succeeding hollow concrete structures constructed by handing over the concrete through the joint surface, respectively. The joint surface and connection joint of the concrete structure that water-stops the joint surface of each concrete structure and waters the joint joint that connects the preceding and subsequent concrete structures to each other so as to be relatively displaceable. A cylindrical joint mounting frame for mounting a flexible waterproof joint on the inner surface side of the joint portion of the preceding and subsequent concrete structures, and facing each other. A short cylindrical flexible waterproof joint is attached to the joint mounting frame across the joint area, and each joint surface is embedded between concrete on both sides sandwiching the joint surface. Since the joint-stop water member to be watered is installed and the joint-side end of the joint-stop water member is connected to the joint mounting frame, the joint-side end of the joint-stop water member By connecting the joint and the joint mounting frame, the flexible water-stop joint and the joint water-stop member can be made continuous, and all the water-stop members are continuous, improving the water-stop performance. Can be measured. In addition, when concrete is spliced, even if contaminants such as latency are attached to the surface of the precast concrete, the adhesive strength between concrete on the joint surface may be reduced. Since the joint and the joint water-stopping member are continuous, it is possible to prevent water from flowing along the joint surface.

これより、コンクリート構造物での全ての止水に用いる部材が連続し、打ち継ぎ面での止水性および連結目地部の止水性や相対変位の吸収を確保することができる。   As a result, all the members used for water-stopping in the concrete structure are continuous, and it is possible to secure water-stopping at the joint surface, water-stopping of the joint joint and absorption of relative displacement.

また、この発明の請求項２記載の打ち継ぎ面および連結目地部の止水継手構造によれば、前記継手取付枠体のコンクリートと接触する全周または一部にシール部材を設置し、前記打ち継ぎ止水部材の端部と前記シール部材とを連結して構成したので、継手取付枠体の全周または一部にシール部材を設置し、打ち継ぎ止水部材の端部とシール部材とを連結することで、継手取付枠体とコンクリートとの止水生を向上できるとともに、全ての止水のための部材であるシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることで、一層確実に止水性を向上することができる。   Further, according to the water-stopping joint structure of the joint surface and the connection joint portion according to claim 2 of the present invention, a seal member is installed on the entire circumference or a part of the joint mounting frame body in contact with the concrete, Since the end portion of the joint water sealing member and the seal member are connected, the seal member is installed on the entire circumference or a part of the joint mounting frame, and the end portion of the joint water sealing member and the seal member are connected to each other. By connecting, the water seal between the joint mounting frame and the concrete can be improved, and the seal member, the flexible water joint, and the joint water stop member, which are all water stop members, are made continuous. Thus, the water stoppage can be improved more reliably.

また、この発明の請求項３記載の打ち継ぎ面および連結目地部の止水継手構造によれば、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に形成した延設部または前記打ち継ぎ止水部材と対応して前記継手取付枠体部分に形成した延設部で行う構成としたので、継手取付枠体の全周に形成した延設部にシール部材を設置することで、シール部材の設置が容易になるとともに、設置範囲を広げたシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることができ、また、打ち継ぎ止水部材と対応する継手取付枠体部分に形成した延設部でシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることで、確実に全ての止水のための部材であるシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることができる。   According to the water-stopping joint structure of the joint surface and the connection joint portion according to claim 3 of the present invention, the joint-side end portion of the joint-stopping water member and the joint mounting frame body or the seal member Are connected by an extended portion formed on the entire circumference of the joint mounting frame or an extended portion formed on the joint mounting frame corresponding to the joint water-stopping member. By installing the seal member on the extended portion formed on the entire circumference of the frame body, the installation of the seal member is facilitated, and the seal member, the flexible water-stop joint, the joint water-stop member, and the installation range are expanded. In addition, by continuing the seal member, the flexible waterproof joint, and the joint water stop member in the extended portion formed in the joint mounting frame portion corresponding to the joint water stop member, A seal member that is a member for all water stoppage and flexibility And a water-shutoff member joint out with water joint can be continuously.

この発明の請求項４記載の打ち継ぎ面および連結目地部の止水継手構造によれば、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に設けた補助連結部材または前記打ち継ぎ止水部材に対応して設けた補助連結部材を介して行う構成としたので、継手取付枠体の全周に設けた別体の補助連結部材を介してシール部材を設置することで、シール部材の設置が容易になるとともに、設置範囲を広げたシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることができ、また、打ち継ぎ止水部材に対応して設けた補助連結部材を介してシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることで、確実に全ての止水のための部材であるシール部材と打ち継ぎ止水部材とを連続させることができる。   According to the water-stopping joint structure of the joint surface and the connection joint portion according to the fourth aspect of the present invention, the joint between the joint-side end portion of the joint water-stopping member and the joint mounting frame body or the seal member is provided. Is provided via an auxiliary connecting member provided on the entire circumference of the joint mounting frame or an auxiliary connecting member provided corresponding to the joint water-stopping member. By installing the seal member via a separate auxiliary connecting member, it becomes easy to install the seal member, and the seal member, flexible water seal joint, and joint water stop member that expand the installation range are connected continuously. In addition, the sealing member, the flexible waterproof joint, and the joint water stop member are continuously connected via an auxiliary connecting member provided corresponding to the joint water stop member, so that Sealing member that is a member for water and jointing It can be continuous and the member.

この発明の請求項５記載の打ち継ぎ面および連結目地部の止水継手構造によれば、前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、ブチルゴムを介して接着する、あるいはボルト・ナットで締結する、もしくはその両方を行う構成としたので、打ち継ぎ止水部材の目地部側の端部と継手取付枠体のシール部材との連結をブチルゴムによる接着やボルト・ナットによる締結もしくこれらの両方で止水性を確保して確実に連結することができる。   According to the water-stopping joint structure of the joint surface and the connection joint portion according to claim 5 of the present invention, the joint between the joint-side end portion of the joint water-stopping member and the joint mounting frame body or the seal member is connected. Is bonded with butyl rubber, or is fastened with bolts and nuts, or both, so that the joint on the joint side of the joint water-stopping member and the seal member of the joint mounting frame Can be securely connected with butyl rubber, bolts and nuts, or both.

この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる止水のための部材のみを抽出してモデル化した説明図および打ち継ぎ面上での平面図である。FIG. 4 is an explanatory view modeled by extracting only a water stop member according to an embodiment of a water stop joint structure of a joint surface and a joint joint of the present invention, and a plan view on the joint surface. この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる施工工程の説明図である。It is explanatory drawing of the construction process concerning one Embodiment of the water-stopping joint structure of the joint surface and connection joint part of this invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の概略構成図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a joint mounting frame body and a joint water-stopping member according to an embodiment of a joint-stop surface and a joint joint water-stop joint structure according to the present invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の他の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の概略構成図である。It is a schematic block diagram of the joint mounting frame and the joint water-stop member according to another embodiment of the joint structure of the joint surface and the joint portion of the present invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の部分拡大構成図である。1 is a partially enlarged configuration diagram of a joint mounting frame body and a joint water-stopping member according to an embodiment of a joint joint structure and a joint joint structure for a joint joint according to the present invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の部分拡大構成図および打ち継ぎ面上での平面図である。1 is a partially enlarged configuration diagram of a joint mounting frame body and a joint water-stopping member according to an embodiment of a joint surface and a joint joint structure of a joint joint according to the present invention, and a plan view on the joint surface. この発明の打ち継ぎ面および連結目地部の止水継手構造の他の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の部分拡大構成図および打ち継ぎ面上での平面図である。FIG. 6 is a partially enlarged configuration diagram of a joint mounting frame and a joint water-stopping member according to another embodiment of the joint surface and joint joint structure of the joint joint according to the present invention, and a plan view on the joint surface. . この発明の打ち継ぎ面および連結目地部の止水継手構造のさらに他の一実施の形態にかかる部分拡大構成図である。It is the elements on larger scale concerning another embodiment of the water stop joint structure of the joint surface and connection joint part of this invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の他の一実施の形態にかかる部分拡大構成図である。It is the elements on larger scale concerning other embodiment of the water stop joint structure of the joint surface and connection joint part of this invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の部分拡大構成図である。1 is a partially enlarged configuration diagram of a joint mounting frame body and a joint water-stopping member according to an embodiment of a joint joint structure and a joint joint structure for a joint joint according to the present invention. この発明の打ち継ぎ面および連結目地部の止水継手構造の他の一実施の形態にかかる継手取付枠体と打ち継ぎ止水部材の部分拡大構成図および打ち継ぎ面上での平面図である。FIG. 6 is a partially enlarged configuration diagram of a joint mounting frame and a joint water-stopping member according to another embodiment of the joint surface and joint joint structure of the joint joint according to the present invention, and a plan view on the joint surface. . この発明の打ち継ぎ面および連結目地部の止水継手構造が適用されるコンクリート構造物の一例の概略斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view of an example of a concrete structure to which a water-stopping joint structure of a joint surface and a joint joint of the present invention is applied. 従来の打ち継ぎ面および連結目地部の止水継手構造の打ち継ぎ面上での平面図および部分拡大図である。It is the top view and partial enlarged view on the joint surface of the conventional joint surface and the joint structure of a waterproof joint structure.

以下、この発明を実施するための形態について図面を参照して詳細に説明する。
この発明の打ち継ぎ面および連結目地部の止水継手構造が適用されるコンクリート構造物は、例えばボックスカルバート型の暗渠で、コンクリート構造物に打ち継ぎ面が少なくとも１箇所設けられるものであり、ここでは、図１１で説明した水平の打ち継ぎ面３が１箇所だけ設けられる場合を例に説明する。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
A concrete structure to which the water-stopping joint structure of the joining surface and the connection joint portion of the present invention is applied is, for example, a box culvert type culvert, and the concrete structure is provided with at least one joining surface, Then, the case where the horizontal joint surface 3 demonstrated in FIG. 11 is provided only in one place is demonstrated to an example.

この打ち継ぎ面および連結目地部の止水継手構造２０では、基本原理としてコンクリート構造物１の先行のコンクリート構造物１ａと後行のコンクリート構造物１ｂとの連結目地部４間を相対変位可能に連結して止水する可撓止水継手８と、先行および後行の各コンクリート構造物１ａ，１ｂの打ち継ぎ面３を止水する打ち継ぎ止水部材５，５とを止水構造的に連続させることで、連結目地部４および打ち継ぎ面３双方の止水性を確保しようとするものである。   In the water-stopping joint structure 20 of the joint surface and the connection joint, as a basic principle, the relative displacement between the connection joint 4 between the preceding concrete structure 1a of the concrete structure 1 and the subsequent concrete structure 1b is possible. A water-stop structure is provided with a flexible water-stop joint 8 that is connected and water-stopped, and a joint water-stopping member 5 and 5 that stops the joint surface 3 of each of the preceding and following concrete structures 1a and 1b. By making it continue, it is intended to ensure water-stopping properties of both the joint portion 4 and the joint surface 3.

さらに、この打ち継ぎ面および連結目地部の止水継手構造２０では、可撓止水部材８を取り付けるための継手取付枠体９のコンクリート側の全周にシール部材１１を設置し、このシール部材１１と可撓止水部材８と打ち継ぎ止水部材５,５とを連結することで、継手取付枠部材９とコンクリートとの間の止水性を向上するようにしており、シール部材１１の取り付けのため継手取付枠体９をコンクリート構造物１の外側に延長し、延設部にシール部材１１として、例えばブチルゴムシートを設置している。   Further, in the water-stopping joint structure 20 of the joint surface and the joint portion, a seal member 11 is installed on the entire circumference of the joint mounting frame 9 for attaching the flexible water-stopping member 8 on the concrete side. 11, the flexible water-stop member 8, and the joint water-stop members 5, 5 are connected to improve the water-stop between the joint mounting frame member 9 and the concrete. Therefore, the joint mounting frame body 9 is extended to the outside of the concrete structure 1, and a butyl rubber sheet, for example, is installed as a seal member 11 in the extended portion.

こうすることで、コンクリート構造物１の打ち継ぎ面３で構造物１の外側の防水シート７が破損したり、剥離した場合でも、外面側から連結目地部４への浸水は、図１（ｂ）中に太い矢印で示すように、打ち継ぎ面３に沿ってゴム止水板６を迂回し、さらに打ち継ぎ止水材５に沿って連結目地部４に漏水しても、打ち継ぎ止水部材５と継手取付枠体９のシール部材１１と可撓止水継手８とが連結してあるので、連結目地部４側からコンクリート内に浸水することが防止され、コンクリート構造物１の内面側に至って漏水となることを防止でき、止水性を向上することができる。   By doing so, even when the waterproof sheet 7 outside the structure 1 is damaged or peeled off at the joint surface 3 of the concrete structure 1, the water immersion from the outer surface side to the joint joint 4 is as shown in FIG. ) Even if the rubber water stop plate 6 is bypassed along the joint surface 3 and further leaks along the joint water stop material 5 to the joint joint 4 as indicated by a thick arrow in the figure, Since the member 5 and the seal member 11 of the joint mounting frame 9 and the flexible waterproof joint 8 are connected to each other, it is possible to prevent water from entering the concrete from the connection joint 4 side, and the inner surface side of the concrete structure 1 It is possible to prevent water leakage and improve water stoppage.

また、可撓止水継手８を取り付けるための筒状の継手取付枠体９を予め設置した状態で、コンクリートを打設してコンクリート構造物１ａ，１ｂを構築する場合に、継手取付枠体９とコンクリートとの間に、ジャンカ、気泡跡、コンクリートの乾燥収縮を起因とする水密性の低下が生じたとしても、連結目地部４からの浸水がコンクリートの水密性のより悪い位置に回り、可撓止水継手８の近傍からの漏水に至ることも防止でき，止水性を向上することができる。   Further, when the concrete structure 1a, 1b is constructed by placing concrete with the tubular joint mounting frame 9 for attaching the flexible water-stopping joint 8 installed in advance, the joint mounting frame 9 Even if there is a drop in watertightness due to jumper, bubble traces, or drying shrinkage of concrete between the concrete and the concrete, the inundation from the joint joints 4 will move to a position where the watertightness of the concrete is worse. It is also possible to prevent water leakage from the vicinity of the stiff water joint 8 and improve water stop.

次に、この打ち継ぎ面および連結目地部の止水継手構造２０を適用したコンクリート構造物１の構築工程について、図２により説明する。   Next, the construction process of the concrete structure 1 to which the water-stopping joint structure 20 of the joint surface and the connection joint portion is applied will be described with reference to FIG.

コンクリート構造物１を構築する地下底面に基礎２１を通常のボックスカルバート型の暗渠の場合と同様に構築し、基礎２１上に先行コンクリート構造物１ａを構築するための型枠や補強用の鉄筋２２を設置するとともに、後行コンクリート構造物１ｂとの連結目地部４に可撓止水部材８を取り付けるための継手取付枠体９，９を設置する。これら継手取付枠体９，９には、予め可撓止水継手８をアンカー２３を介して取り付けた状態としておいても、アンカー２３だけとしてコンクリート打設完了後に可撓止水継手８を取り付けるようにすることもでき、継手取付枠体９も片方ずつ設置してコンクリート構造物１ａ、１ｂに固定することもできる。   The foundation 21 is constructed in the same manner as a normal box culvert type culvert on the basement bottom where the concrete structure 1 is constructed, and a formwork and a reinforcing steel bar 22 for constructing the preceding concrete structure 1a on the foundation 21. And joint attachment frames 9, 9 for attaching the flexible water-stopping member 8 to the joint joint 4 with the following concrete structure 1b. Even if the flexible waterproof joint 8 is attached to the joint attachment frames 9 and 9 in advance through the anchor 23, the flexible waterproof joint 8 is attached to the joint attachment frames 9 and 9 only after the concrete placement is completed. The joint mounting frame 9 can also be installed one by one and fixed to the concrete structures 1a and 1b.

この継手取付枠体９には、コンクリートと接する側の全周にコンクリートとの止水性を確保するシール部材１１としてブチルゴムシートが取り付けられる。   A butyl rubber sheet is attached to the joint mounting frame 9 as a seal member 11 that ensures water-stopping with concrete on the entire circumference on the side in contact with the concrete.

この継手取付枠体９へのシール部材１１の取り付けは、コンクリート構造物１ａの連結目地部４の端面に沿うフランジ面９ａ（図１参照）に取り付けるが、既に説明したように、このシール部材１１と打ち継ぎ止水部材５とを連結する必要があることから、図２および図３に示すように、打ち継ぎ止水部材５の設置位置と対応する継手取付枠体９の下隅部に延設部２４を設けてシール部材１１を取り付けてある。   The seal member 11 is attached to the joint attachment frame 9 on the flange surface 9a (see FIG. 1) along the end face of the joint joint 4 of the concrete structure 1a. As already described, the seal member 11 2 and FIG. 3, the joint mounting frame body 9 extends to the lower corner of the joint mounting frame 9 corresponding to the installation position. A seal member 11 is attached by providing a portion 24.

なお、コンクリート構造物１に２箇所の打ち継ぎ面２,３を設けてコンクリート構造物１ａ，１ｂを構築する場合には、図４に示すように、継手取付枠体９の両側部および上下隅部に連続する側部延設部２５を設けてシール材１１を設置して上下２箇所の打ち継ぎ面２,３で打ち継ぎ止水部材５と連結できるようにする。さらに、継手取付枠体９の全周に延設部を設けて全周延設部としてシール部材１１を設置するようにしても良い。これら側部延設部２５や全周延設部を設ける場合には、打ち継ぎ面２,３の位置が変わる場合にも何ら変更することなくそのままで対応することができる。   When the concrete structure 1a, 1b is constructed by providing two joint surfaces 2, 3 on the concrete structure 1, as shown in FIG. 4, both sides and upper and lower corners of the joint mounting frame 9 are provided. A side extending portion 25 that is continuous to the portion is provided, and the sealing material 11 is installed so that it can be connected to the joint water-stopping member 5 at two joint surfaces 2 and 3 at the top and bottom. Furthermore, an extending portion may be provided on the entire circumference of the joint mounting frame 9 and the seal member 11 may be installed as the entire circumferential extending portion. In the case of providing the side extension portions 25 and the entire circumference extension portions, it is possible to cope with the change in the positions of the joining surfaces 2 and 3 without any change.

さらに、この打ち継ぎ面３には、図５に示すように、打ち継ぎ面３の上下に埋設されるように打ち継ぎ止水部材５を鉄筋２２およびアンカー２３を利用して固定糸２６を用いるなどで下半分が打ち継ぎ面３の下側に、上半分が打ち継ぎ面３の上側に埋設される状態とする。この打ち継ぎ止水部材５は帯状のものがロール状に丸めて搬入され、これを巻戻して設置する。   Further, as shown in FIG. 5, the joining water-stopping member 5 is used for the joining surface 3 by using reinforcing bars 22 and anchors 23 so as to be buried above and below the joining surface 3. The lower half is buried below the joining surface 3 and the upper half is buried above the joining surface 3. The band stop water member 5 is rolled into a roll and carried in, and is rewound and installed.

そして、この打ち継ぎ止水部材５は、例えば、その連結目地部４側の端部５ａをＬ字状に曲げて継手取付枠体９のシール部材１１とブチルゴム２７を介して接着することで連結されて設置される。この打ち継ぎ止水部材５の端部５ａと継手取付枠体５のシール材１１との接着を強固にするため、例えば図６に示すように、据付治具２８を用い、両端部の断面コ字状の締付ボルト２８ａを備えた２つのクランプ部２８ｂ，２８ｂと押え板２８ｃとで構成し、打ち継ぎ止水部材５の端部５ａをシール部材１１に当て、その上に押え板２８ｃを当てて継手取付枠体９とともに、クランプ部２８ｂ，２８ｂを挟むようにした後、締付ボルト２８ａを締め付けた状態を保持することで、接着強度を向上して連結することができる。接着完了後は、据付治具２８を取り外してコンクリートの打設を行うこともできる。   The joint water-stopping member 5 is connected by, for example, bending the end portion 5a on the connection joint portion 4 side into an L-shape and bonding it with the seal member 11 of the joint mounting frame 9 and the butyl rubber 27. Installed. In order to strengthen the adhesion between the end portion 5a of the joint water-stopping member 5 and the sealing material 11 of the joint mounting frame body 5, for example, as shown in FIG. It is composed of two clamp portions 28b, 28b provided with a letter-shaped tightening bolt 28a and a presser plate 28c. The end portion 5a of the joint water stop member 5 is applied to the seal member 11, and the presser plate 28c is placed thereon. By applying the joint mounting frame body 9 together with the clamp portions 28b and 28b, and holding the tightening bolt 28a, it is possible to improve the adhesive strength and connect them. After completion of the bonding, the installation jig 28 can be removed and concrete can be placed.

なお、打ち継ぎ止水部材５の端部５ａと継手取付枠体９のシール部材１１との連結は、ブチルゴムを介して接着する場合に限らず、他の方法でも良く、例えば図７に示すように、継手取付枠体９にボルト・ナット２９を用いて締結するようにしても良い。この場合には、相対向する継手取付枠体９，９間にボルト・ナット２９による締結スペースを確保できるように、継手取付枠体９のフランジ部９ａを連結目地部４に対して引っ込んだ状態となるよう成形しておくことで、作業性を向上することができる。   The connection between the end portion 5a of the joint water-stopping member 5 and the seal member 11 of the joint mounting frame 9 is not limited to the case of bonding via butyl rubber, and other methods may be used, for example, as shown in FIG. In addition, the joint mounting frame 9 may be fastened using bolts and nuts 29. In this case, the flange portion 9a of the joint mounting frame 9 is retracted with respect to the joint joint 4 so that a fastening space by the bolts and nuts 29 can be secured between the joint mounting frames 9, 9 facing each other. The workability can be improved by forming so as to be.

また、打ち継ぎ面３に用いる打ち継ぎ止水部材５によっては、端部をＬ字状に曲げて設置することが困難な場合もあるが、その場合には、図８および図９に示すように、補助連結部材３０,３１を用いて打ち継ぎ止水部材５と継手取付枠体９のシール部材１１との連結を行う。例えば図８に示す補助連結部材３０では、Ｌ字状の金属材で構成され、補助連結部材３０の一方３０ａが継手取付枠体９の延設部２４に設置したシール部材１１に接着され、他方３０ｂの外側面に打ち継ぎ止水部材５が接着して設置される。   Further, depending on the joint water-stopping member 5 used for the joint surface 3, it may be difficult to bend and install the end portion in an L shape. In that case, as shown in FIGS. In addition, the joint water stop member 5 and the seal member 11 of the joint mounting frame body 9 are connected using the auxiliary connecting members 30 and 31. For example, in the auxiliary connecting member 30 shown in FIG. 8, the auxiliary connecting member 30 is made of an L-shaped metal material, and one side 30 a of the auxiliary connecting member 30 is bonded to the seal member 11 installed on the extending portion 24 of the joint mounting frame body 9. The joint water stop member 5 is attached to the outer surface of 30b.

また、図９に示す補助連結部材３１では、Ｌ字状の金属材で構成され、補助連結部材３１の一方３１ａが継手取付枠体９の延設部２４に設置したシール部材１１に接着され、他方３１ｂの内側面に打ち継ぎ止水部材５が当てられて押え板３１ｃを介してボルトナット３１ｄで締め付けることで設置され、補助連結部材３１の他方３１ｂの外側面には、ブチルゴム３１ｅを貼り付けて水道を遮断するようにしてある。   Further, in the auxiliary connecting member 31 shown in FIG. 9, the auxiliary connecting member 31 is made of an L-shaped metal material, and one side 31 a of the auxiliary connecting member 31 is bonded to the seal member 11 installed in the extending portion 24 of the joint mounting frame body 9. The joint water-stopping member 5 is applied to the inner side surface of the other 31b and is tightened with a bolt nut 31d via a presser plate 31c. A butyl rubber 31e is pasted on the outer side surface of the other 31b of the auxiliary connecting member 31. The water supply is cut off.

さらに、他の補助連結部材３２を用いる打ち継ぎ止水部材５の端部５ａと継手取付枠体９のシール部材１１との連結方法として、図１０に示すように、継手取付枠体９に延設部を設けることなく、補助連結部材３２に、継手取付枠部材の下隅部の略３角形部分位置する延設部分３２ａを形成するとともに、Ｌ字状の補助連結部３２ｂ，３２ｃが形成され、図１０（ｂ）に示すように、延設部分３２ａを継手取付枠部材９のアンカー２３に締め付けて固定してシール部材１１と連結状態とする。そして、補助連結部３２ｃの外側に打ち継ぎ止水部材５の端部を当ててボルトナット３２ｄで締め付けて連結固定してある。   Further, as a method of connecting the end portion 5a of the joint water-stopping member 5 using the other auxiliary connecting member 32 and the seal member 11 of the joint mounting frame body 9, as shown in FIG. Without providing the installation portion, the auxiliary connection member 32 is formed with the extended portion 32a located at the substantially triangular portion of the lower corner portion of the joint mounting frame member, and the L-shaped auxiliary connection portions 32b and 32c are formed. As shown in FIG. 10B, the extended portion 32 a is fastened and fixed to the anchor 23 of the joint mounting frame member 9 to be connected to the seal member 11. Then, the end of the joint water-stopping member 5 is applied to the outside of the auxiliary connecting portion 32c and is fastened and fixed by a bolt nut 32d.

このような継手取付枠体９の延設部に対応する部分を補助連結部材３２に延設部分３２ａとして形成したので、従来の継手取付枠体９の形状を変えることなく、打ち継ぎ止水部材５の端部５ａと継手取付枠体９のシール部材１１との連結を行うことができる。   Since the portion corresponding to the extended portion of the joint mounting frame 9 is formed as the extended portion 32a in the auxiliary connecting member 32, the joint water blocking member can be used without changing the shape of the conventional joint mounting frame 9. 5 can be connected to the seal member 11 of the joint mounting frame 9.

また、他の補助連結部材３３を用いる打ち継ぎ止水部材５の端部５ａと継手取付枠体９のシール部材１１との連結方法として、図１１に示すように、継手取付枠体９に延設部を設けることなく、補助連結部材３３に、継手取付枠部材の下隅部の略３角形部分位置する延設部分３３ａを形成するとともに、Ｌ字状の補助連結部３３ｂ，３３ｃを形成して構成し、継手取付枠部材９の下隅部に溶接あるいはブチルゴムで接着することで固定設置するようにして補助連結部材３３とシール部材１１とを連結状態とする。そして、補助連結部３３ｃの外側に打ち継ぎ止水部材５の端部を当ててブチルゴムシートを用いて連結固定したり、図示しないボルトナットで締め付けて連結固定したり、あるいは、これらの両方を用いて連結固定する。   Further, as a method of connecting the end portion 5a of the joint water-stopping member 5 using the other auxiliary connecting member 33 and the seal member 11 of the joint mounting frame body 9, as shown in FIG. Without providing the mounting portion, the auxiliary connecting member 33 is formed with the extending portion 33a positioned at the substantially triangular portion of the lower corner portion of the joint mounting frame member, and the L-shaped auxiliary connecting portions 33b and 33c are formed. The auxiliary connecting member 33 and the seal member 11 are connected to each other so as to be fixedly installed by welding or bonding with butyl rubber to the lower corner of the joint mounting frame member 9. Then, the end of the joint water-stopping member 5 is applied to the outside of the auxiliary connecting portion 33c and is fixedly connected using a butyl rubber sheet, or is connected and fixed by tightening with a bolt and nut (not shown), or both of them are used. And fix them together.

このような継手取付枠体９の延設部に対応する部分を補助連結部材３３に延設部分３３ａとして形成して溶接あるいはブチルゴムで接着してあるので、従来の継手取付枠体９の形状を変えることなく、打ち継ぎ止水部材５の端部５ａと継手取付枠体９のシール部材１１との連結を行うことができる。   Since the portion corresponding to the extended portion of the joint mounting frame body 9 is formed as the extended portion 33a on the auxiliary connecting member 33 and bonded by welding or butyl rubber, the shape of the conventional joint mounting frame body 9 is The connection between the end 5a of the joint water-stopping member 5 and the seal member 11 of the joint mounting frame 9 can be performed without changing.

このように第１工程としての打ち継ぎ止水部材５の設置、継手取付枠体９の設置およびシール部材１１の設置、さらに打ち継ぎ止水部材５とシール部材１１との連結を行った後、さらに連結目地部４に、図１（ｂ）に示すように、先行および後行のコンクリート間に跨るようにゴムの止水板６を設置しておく。   Thus, after installing the joint water-stopping member 5 as the first step, installing the joint mounting frame 9 and installing the seal member 11, and further connecting the joint water-stopping member 5 and the seal member 11, Further, as shown in FIG. 1 (b), a rubber water stop plate 6 is installed on the joint joint 4 so as to straddle between the preceding and succeeding concrete.

こうしてコンクリートの打設前の準備が完了した後、基礎２１上に打ち継ぎ面３までのコンクリートの打設が行われる（図２（ｂ）参照）。   After completing the preparation before placing concrete in this way, the concrete is placed on the foundation 21 up to the joint surface 3 (see FIG. 2B).

この後、打ち継ぎ面３上に型枠などを設置してコンクリートの打設準備を行った後、打ち継ぎ面３を介した上部のコンクリートの打設を行い先行のコンクリート構造物１ａが構築される（図２（ｃ）参照）。   After this, a formwork or the like is installed on the joining surface 3 to prepare for placing concrete, and then the upper concrete is placed through the joining surface 3 to construct the preceding concrete structure 1a. (See FIG. 2 (c)).

後行のコンクリート構造物１ｂについても先行のコンクリート構造物１ａと同様に構築することを繰り返すことで、コンクリート構造物１が完成する。   The concrete structure 1 is completed by repeating the construction of the subsequent concrete structure 1b in the same manner as the preceding concrete structure 1a.

以上、具体的に説明したように、この打ち継ぎ面および連結目地部の止水継手構造２０によれば、打ち継ぎ止水部材５の目地部側の端部５ａと継手取付枠体９と連結することで、可撓止水継手８と打ち継ぎ止水部材５とを連続させることができ、連結目地部４および打ち継ぎ面３双方の止水性を確保することができ、全ての止水のための部材５，８が連続することになって止水性の向上をはかることができる。   As specifically described above, according to the water-stopping joint structure 20 of the joint surface and the joint portion, the joint 5 is connected to the joint portion end 5a of the joint portion 5 and the joint mounting frame 9. By doing so, the flexible water-stop joint 8 and the joint water-stopping member 5 can be made continuous, both the joint joint 4 and the joint surface 3 can be secured, and all the water-stops can be secured. Therefore, the members 5 and 8 are continuous, so that the water stoppage can be improved.

また、コンクリートの打ち継ぎを行う場合、先打ちコンクリートの表面にレイタンス等雑物が付着し、これによって打ち継ぎ面におけるコンクリート同士の付着力が低下するようなことがあっても、可撓止水継手８と打ち継ぎ止水部材１１とが連続することで、打ち継ぎ面３を伝う浸水を防止することができる。   In addition, when concrete is spliced, even if contaminants such as latency are attached to the surface of the precast concrete, the adhesive strength between concrete on the joint surface may be reduced. Since the joint 8 and the joint water-stopping member 11 are continuous, it is possible to prevent water flowing along the joint surface 3.

これより、コンクリート構造物１での全ての止水に用いる部材５，８，１１が連続し、打ち継ぎ面３での止水性および連結目地部４の止水性や相対変位の吸収を確保することができる。   Thus, the members 5, 8, and 11 used for all the water stoppage in the concrete structure 1 are continuous, and the water stoppage at the joint surface 3 and the water stoppage of the joint joint 4 and the absorption of the relative displacement are ensured. Can do.

さらに、この打ち継ぎ面および連結目地部の止水継手構造によれば、継手取付枠体９のコンクリートと接触する全周または一部にシール部材１１を設置し、打ち継ぎ止水部材５の端部とシール部材１１とを連結して構成したので、継手取付枠体９の全周または一部にシール部材１１を設置し、打ち継ぎ止水部材５の端部５ａとシール部材１１とを連結することで、継手取付枠体９とコンクリートとの止水生を向上できるとともに、全ての止水のための部材であるシール部材１１と可撓止水継手８と打ち継ぎ止水部材１１とを連続させることで、一層確実に止水性を向上することができる。   Further, according to the water-stopping joint structure of the joint surface and the connection joint portion, the seal member 11 is installed on the entire circumference or a part of the joint mounting frame 9 in contact with the concrete, and the end of the joint water-stopping member 5 is provided. And the seal member 11 are connected to each other. Therefore, the seal member 11 is installed on the entire circumference or a part of the joint mounting frame 9, and the end portion 5a of the joint water stop member 5 and the seal member 11 are connected. As a result, the water stoppage between the joint mounting frame 9 and the concrete can be improved, and the seal member 11, the flexible water stop joint 8 and the joint water stop member 11 which are all water stop members are continuously connected. By making it, it can improve a water stop more reliably.

また、この打ち継ぎ面および連結目地部の止水継手構造２０によれば、打ち継ぎ止水部材５の目地部側の端部５ａと継手取付枠体９あるいはシール部材１１との連結を、継手取付枠体９の全周に形成した延設部または打ち継ぎ止水部材５と対応して継手取付枠体部分に形成した延設部９ａで行うようにしたので、継手取付枠体９の全周に形成した延設部にシール部材を設置することで、シール部材１１の設置が容易になるとともに、設置範囲を広げたシール部材１１と可撓止水継手８と打ち継ぎ止水部材５とを連続させることができ、また、打ち継ぎ止水部材５と対応する継手取付枠体９部分に形成した延設部９ａでシール部材１１と可撓止水継手８と打ち継ぎ止水部材５とを連続させることで、確実に全ての止水のための部材であるシール部材１１と可撓止水継手８と打ち継ぎ止水部材５とを連続させることができる。   Further, according to the water-stopping joint structure 20 of the joint surface and the joint portion, the joint between the joint portion end 5a of the joint water-stopping member 5 and the joint mounting frame body 9 or the seal member 11 is a joint. Since the extended portion formed on the entire circumference of the mounting frame 9 or the extended portion 9a formed on the joint mounting frame portion corresponding to the joint water-stopping member 5 is used, By installing the seal member in the extended portion formed on the circumference, the seal member 11 can be easily installed, and the seal member 11, the flexible water-stop joint 8 and the joint water-stop member 5 with an expanded installation range are provided. Further, the seal member 11, the flexible water-stop joint 8, and the joint-stop water member 5 are formed by the extending portion 9a formed in the joint mounting frame 9 corresponding to the joint-stop member 5. The seal that is a member for all water stop surely by continuing And a water-shutoff member 5 piecing out with product 11 and flexible waterproofing joint 8 can be made continuous.

さらに、この打ち継ぎ面および連結目地部の止水継手構造２０によれば、打ち継ぎ止水部材５の目地部側の端部５ａと継手取付枠体９あるいはシール部材１１との連結を、継手取付枠体９の全周に設けた補助連結部材または打ち継ぎ止水部材５に対応して設けた補助連結部材３０，３１，３２，３３を介して行うようにしたので、継手取付枠体の全周に設けた別体の補助連結部材を介してシール部材を設置することで、シール部材の設置が容易になるとともに、設置範囲を広げたシール部材と可撓止水継手と打ち継ぎ止水部材とを連続させることができ、また、打ち継ぎ止水部材５に対応して設けた補助連結部材３０，３１，３２，３３を介してシール部材１１と可撓止水継手８と打ち継ぎ止水部材５とを連続させることで、確実に全ての止水のための部材であるシール部材１１と打ち継ぎ止水部材８と打ち継ぎ止水部材５とを連続させることができる。   Further, according to the water-stopping joint structure 20 of the joint surface and the joint portion, the joint between the joint portion 5 or the seal member 11 and the end portion 5a of the joint portion 5 on the joint portion side is connected to the joint member. Since the auxiliary connecting members 30, 31, 32, 33 provided corresponding to the auxiliary connecting members provided on the entire circumference of the mounting frame 9 or the joint water-stopping member 5 are used, By installing the seal member through a separate auxiliary connecting member provided on the entire circumference, the seal member can be easily installed, and the seal member, the flexible water-stop joint, and the joint water stop are expanded. The sealing member 11 and the flexible water-stop joint 8 can be connected to each other through auxiliary connecting members 30, 31, 32, and 33 provided corresponding to the connecting water-stopping member 5. By making the water member 5 continuous, And a water-shutoff member 5 splicing out the seal member 11 and out joint waterstop member 8 is a member can be continuous for.

また、この打ち継ぎ面および連結目地部の止水継手構造２０によれば、打ち継ぎ止水部材５の目地部側の端部５ａと継手取付枠体９あるいはシール部材１１との連結を、ブチルゴムを介して接着する、あるいはボルト・ナット３１ｄで締結する、もしくは両方で行うようにしたので、打ち継ぎ止水部材５の目地部側の端部５ａと継手取付枠体９のシール部材１１との連結をブチルゴムによる接着やボルト・ナットによる締結、あるいは両方で止水性を確保して確実に連結することができる。   In addition, according to the joint surface 20 of the joint surface and the joint portion of the joint, the joint 5 of the joint portion 5 of the joint member 5 and the joint attachment frame body 9 or the seal member 11 is connected to the butyl rubber. Between the end portion 5a on the joint portion side of the joint water-stopping member 5 and the seal member 11 of the joint mounting frame body 9. Connection can be ensured by securing water-stopping by bonding with butyl rubber, fastening with bolts and nuts, or both.

なお、上記実施の形態では、コンクリート構造物としてボックスカルバート型の暗渠を例に説明したが、これに限らず他の中空のコンクリート構造物であっても同様に適用でき、コンクリート構造物の断面形状も略矩形のものに限らず他の形状であっても良い。   In the above embodiment, a box culvert type culvert has been described as an example of a concrete structure. However, the present invention is not limited to this, and can be similarly applied to other hollow concrete structures. Also, the shape is not limited to a substantially rectangular shape, and may be other shapes.

また、連結目地部を相対変位可能にシールする可撓止水継手として中間部に断面略Ｕ字状の伸縮部を備えたものを例に説明したが、他の断面形状の伸縮部を備えた可撓性継手であっても良く、相対変位の吸収と止水とが可能であれば良い。   Moreover, although the example which provided the expansion part of the substantially U-shaped cross section in the intermediate part as an example of the flexible waterproof joint which seals a connection joint part so that relative displacement was possible, it was equipped with the expansion part of another cross-sectional shape. It may be a flexible joint as long as it can absorb relative displacement and stop water.

１ コンクリート構造物
１ａ 先行コンクリート構造物
１ｂ 後行コンクリート構造物
２，３ 打ち継ぎ面
４ 連結目地部
５ 打ち継ぎ止水部材
５ａ 目地部側の端部
６ 止水板
７ 防水シート
８ 可撓止水部材
９ 継手取付枠体
９ａ フランジ面
１０ 目地材
１１ シール部材
２０ 打ち継ぎ面および連結目地部の止水継手構造
２１ 基礎
２２ 鉄筋
２３ アンカー
２４ 延設部
２５ 側部延設部
２６ 固定糸
２７ ブチルゴム
２８ 据付治具
２８ａ 締付ボルト
２８ｂ クランプ部
２８ｃ 押え板
２９ ボルト・ナット
３０ 補助連結部材
３０ａ 一方の辺
３０ｂ 他方の辺
３１ 補助連結部材
３１ａ 一方の辺
３１ｂ 他方の辺
３１ｃ 押え板
３１ｄ ボルトナット
３１ｅ ブチルゴム
３２ 補助連結部材
３２ａ 延設部分
３２ｂ 補助連結部
３２ｃ 補助連結部
３２ｄ ボルトナット
３３ 補助連結部材
３３ａ 延設部分
３３ｂ 補助連結部
３３ｃ 補助連結部 DESCRIPTION OF SYMBOLS 1 Concrete structure 1a Preceding concrete structure 1b Subsequent concrete structure 2,3 Joint surface 4 Connection joint part 5 Joint joint waterproofing member 5a Joint part side edge 6 Water stop plate 7 Waterproof sheet 8 Flexible water stop Member 9 Joint mounting frame 9a Flange surface 10 Joint material 11 Seal member 20 Water-stop joint structure 21 of joint surface and connection joint portion 22 Base 22 Reinforcement 23 Anchor 24 Extension portion 25 Side extension portion 26 Fixing thread 27 Butyl rubber 28 Mounting jig 28a Clamping bolt 28b Clamp portion 28c Holding plate 29 Bolt / nut 30 Auxiliary connecting member 30a One side 30b The other side 31 Auxiliary connecting member 31a One side 31b The other side 31c Holding plate 31d Bolt nut 31e Butyl rubber 32 Auxiliary connecting member 32a Extended portion 32b Auxiliary connecting portion 32c Auxiliary connecting portion 32d Bolt nut 33 Auxiliary Forming members 33a extending portion 33b auxiliary connecting portion 33c secondary connection section

Claims (5)

それぞれが打ち継ぎ面を介してコンクリートを打ち継いで構築される先行および後行の中空コンクリート構造体の前記それぞれのコンクリート構造体の打ち継ぎ面を止水するとともに、前記先行および後行のコンクリート構造体同士を連結する連結目地部を相対変位可能に止水するコンクリート構造体の打ち継ぎ面および連結目地部の止水継手構造であって、
前記先行および後行のコンクリート構造体の連結目地部の内面側に、可撓止水継手を取り付ける筒状の継手取付枠体を設置し、これら相対向する継手取付枠体に連結目地部を跨いで短筒状の可撓止水継手を取り付け、
前記それぞれの打ち継ぎ面には、打ち継ぎ面を挟む両側のコンクリート間に埋設して止水する打ち継ぎ止水部材を設置するとともに、この打ち継ぎ止水部材の目地部側の端部を前記継手取付枠体と連結して構成したことを特徴とする打ち継ぎ面および連結目地部の止水継手構造。 The leading and trailing concrete structures of the preceding and succeeding hollow concrete structures, each of which is constructed by casting concrete through the joining surface, are water-stopped, and the preceding and succeeding concrete structures A joint joint surface of a concrete structure for water-stopping a joint joint for connecting bodies to each other so as to be relatively displaceable, and a water-stopping joint structure for the joint joint,
A cylindrical joint mounting frame for attaching a flexible water-stopping joint is installed on the inner surface side of the joint joint of the preceding and subsequent concrete structures, and the joint joint is straddled across the joint mounting frames facing each other. Attach a short cylindrical flexible waterproof joint,
Each joint surface is provided with a joint water-stopping member which is buried between concrete on both sides sandwiching the joint surface to stop water, and the joint-side end of the joint-water-stopping member is connected to the joint part. A water-stopping joint structure of a joint surface and a joint part characterized by being connected to a joint mounting frame. 前記継手取付枠体のコンクリートと接触する全周または一部にシール部材を設置し、前記打ち継ぎ止水部材の端部と前記シール部材とを連結して構成したことを特徴とする請求項１記載の打ち継ぎ面および連結目地部の止水継手構造。   2. A seal member is provided on the entire circumference or part of the joint mounting frame that contacts with concrete, and the end portion of the joint water-stop member and the seal member are connected to each other. Water-stopping joint structure of the described joint surface and joint joint. 前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に形成した延設部または前記打ち継ぎ止水部材と対応して前記継手取付枠体部分に形成した延設部で行う構成としたことを特徴とする請求項１または２記載の打ち継ぎ面および連結目地部の止水継手構造。   An extended portion formed on the entire circumference of the joint mounting frame body or the joint water blocking member, with the joint side frame end of the joint water blocking member and the joint mounting frame body or the seal member connected to each other. 3. The water-stopping joint structure for a joint surface and a joint joint according to claim 1 or 2, characterized in that it is configured to be performed by an extending portion formed in the joint mounting frame portion. 前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、当該継手取付枠体の全周に設けた補助連結部材または前記打ち継ぎ止水部材に対応して設けた補助連結部材を介して行う構成としたことを特徴とする請求項１〜３のいずれかに記載の打ち継ぎ面および連結目地部の止水継手構造。   The connection between the joint-side end of the joint water-stopping member and the joint mounting frame or the seal member is connected to the auxiliary connection member provided on the entire circumference of the joint mounting frame or the joint water-stopping member. The water-stopping joint structure according to any one of claims 1 to 3, wherein the structure is performed via an auxiliary connecting member provided correspondingly. 前記打ち継ぎ止水部材の目地部側の端部と前記継手取付枠体あるいは前記シール部材との連結を、ブチルゴムを介して接着する、あるいはボルト・ナットで締結する、もしくはその両方を行う構成としたことを特徴とする請求項１〜４のいずれかに記載の打ち継ぎ面および連結目地部の止水継手構造。   The connection between the joint-side end of the joint water-stopping member and the joint mounting frame or the seal member is bonded via butyl rubber, or is fastened with bolts and nuts, or both. The water-stopping joint structure of the joint surface and the connection joint portion according to any one of claims 1 to 4.

Images