JP2001173625A - Joint device between members for construction - Google Patents
Joint device between members for constructionInfo
- Publication number
- JP2001173625A JP2001173625A JP35906199A JP35906199A JP2001173625A JP 2001173625 A JP2001173625 A JP 2001173625A JP 35906199 A JP35906199 A JP 35906199A JP 35906199 A JP35906199 A JP 35906199A JP 2001173625 A JP2001173625 A JP 2001173625A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- coil spring
- wedge
- outer frame
- convex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、構築物の部材ど
うしを連結するための部材間継手装置に関するものであ
り、例えばユニット化した構造部材（一方が構造物本体
であってもよい）どうしの連結やトンネル覆工用セグメ
ントの連結などに利用することができる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member-to-member joint device for connecting members of a building, and for example, connecting unitized structural members (one of which may be a structure body). It can be used to connect segments for tunnel lining.
【０００２】[0002]
【従来の技術】従来、部材どうしを連結する継手構造に
は、ボルトとナットを用いた接合方法があり、あらゆる
分野で広く利用され、汎用性も高い。しかし、この接合
方法は作業が煩雑であり、これをロボット化するにはき
わめて高度な技術を必要とする。そのため、作業の大半
は手作業でなされているのが現状であり、省力化、自動
化を必要とする建設現場においては、必ずしも適切な方
法とは言えない。2. Description of the Related Art Conventionally, in a joint structure for connecting members, there is a joining method using bolts and nuts, which is widely used in all fields and has high versatility. However, this joining method is complicated in operation, and requires extremely advanced technology to make it a robot. For this reason, most of the work is currently performed manually, and this method is not necessarily appropriate in a construction site that requires labor saving and automation.
【０００３】こうした背景の中、ボルトを使わない継
手、つまり継手のボルトレス化に取り組んだ分野にシー
ルドトンネル用セグメントがある。この分野では現在ま
でに多種多様な継手が提案されており、例えば、ワンタ
ッチタイプの接合具としては、特開平７−３１７７４４
号公報、特開平１０−２２０１８４号公報、特開平１１
−２２３０９６号公報記載の発明等がある。[0003] Against this background, there is a shield tunnel segment in the field of joints that do not use bolts, that is, fields in which joints have been made boltless. In this field, various joints have been proposed so far. For example, as a one-touch type joint, Japanese Unexamined Patent Publication No. 7-317744 has been proposed.
JP, JP-A-10-220184, JP-A-11
There is an invention described in JP-A-2-223096.
【０００４】これらの発明における基本構造は、トンネ
ル覆工用のセグメントどうしを接合するに当り、一方の
セグメントに設けた凹型継手の凹部に他方のセグメント
に設けた凸型継手の棒状凸部を挿入し、凹型継手を構成
するスリーブ内に設けた楔によって凸型継手の凸部を締
め付けて係止できるようにしたものである。In the basic structure of these inventions, when joining the segments for tunnel lining, a bar-shaped convex portion of a convex joint provided on the other segment is inserted into a concave portion of a concave joint provided on one segment. In addition, the projection of the convex joint can be fastened and locked by a wedge provided in a sleeve constituting the concave joint.
【０００５】また、凸型継手の凸部の挿入に対し、楔を
挿入方向と反対方向に付勢し、凸部を締め付ける構造と
しては、複数の楔を束ねる形で楔を外周からリング状の
ばねで締め付けるもの、楔の端部を板ばねあるいは合成
樹脂弾性体からなるバネで付勢するもの、楔の前後にば
ねを挿入したものなどが開示されている。[0005] In addition, the wedge is urged in a direction opposite to the insertion direction to insert the convex portion of the convex joint, and the convex portion is tightened. There are disclosed ones that are tightened by a spring, ones in which the ends of the wedges are urged by a leaf spring or a spring made of a synthetic resin elastic body, ones in which a spring is inserted before and after the wedge, and the like.
【０００６】また、建設分野で楔理論を応用した技術と
しては、プレストレストコンクリート（以下，ＰＣと呼
ぶ）の定着構造がある。この技術に関して、特開昭６３
−４３０４６号公報にはグリップとなる楔外面のテーパ
部分の頂点での半分角が１０度以下とされている。As a technique using the wedge theory in the construction field, there is a fixing structure of prestressed concrete (hereinafter, referred to as PC). With respect to this technology,
In JP-A-43046, the half angle at the vertex of the tapered portion of the outer surface of the wedge serving as the grip is set to 10 degrees or less.
【０００７】また、実開平１−９８８１７号公報記載の
定着構造では、楔の傾斜角度（延長線上の頂角）が５〜
１２度とされており、外面のテーパ角度に直すと２．５
〜６度に相当する。さらに実開平３−５２８０５号公報
記載の定着具では、楔止面を約１／１０のテーパを有す
る緩傾斜面としており、何れの場合も楔体のテーパ角度
で整理すれば１０度以下になる。その理由として、ＰＣ
の定着構造の場合、構造の機能としては引張力に対して
より強固に定着し、引抜き耐力だけを有していればよい
ことが挙げられる。In the fixing structure described in Japanese Utility Model Laid-Open No. 1-98817, the angle of inclination (vertical angle on the extension) of the wedge is 5 to 5.
12 degrees, which translates into 2.5
~ 6 degrees. Further, in the fixing device described in Japanese Utility Model Laid-Open Publication No. 3-52805, the wedge stopper surface is a gentle slope having a taper of about 1/10. . The reason is that PC
In the case of the fixing structure described above, the function of the structure is that it is only necessary to fix more firmly to the tensile force and to have only the pull-out strength.
【０００８】[0008]
【発明が解決しようとする課題】楔理論に基づく継手構
造を、構築物における部材どうしの接合に用いる場合、
施工性や引抜き強度の面で優れているだけでなく、引抜
き時や引抜き後に生じる変位量ができるだけ小さいとい
うことが要求される。When a joint structure based on the wedge theory is used for joining members in a building,
In addition to being excellent in workability and pull-out strength, it is required that the amount of displacement generated during and after pull-out be as small as possible.
【０００９】例えば、前記のシールドトンネル用のセグ
メントへの適用を考えた場合、セグメント間の継手部目
開きが漏水の原因となり、トンネルの止水性に直接影響
を与えるため、引抜き時や引抜き後に生じる変位量をで
きるだけ小さくする必要がある。For example, in the case of application to the above-mentioned shield tunnel segment, the joint opening between the segments causes water leakage, which directly affects the water stoppage of the tunnel, and thus occurs at the time of drawing or after drawing. The displacement must be as small as possible.
【００１０】また、継手において引抜き力に対する変位
はせん断剛性を著しく低下させる原因となるため、上述
の必要性は、他の構築物についても同様である。本願発
明は、上述のような課題の解決を図ったものであり、施
工性に優れ、高い剛性、強度を有し、かつ引抜き力に対
する変位および残留変位の少ない部材間継手装置を提供
することを目的としている。[0010] Further, since the displacement with respect to the pulling force in the joint causes a significant reduction in the shear rigidity, the above-mentioned necessity is the same for other structures. The present invention has been made to solve the above-described problems, and provides an inter-member joint device that is excellent in workability, has high rigidity and strength, and has little displacement and little residual displacement with respect to a pulling force. The purpose is.
【００１１】[0011]
【課題を解決するための手段】本願の請求項１に係る発
明は、接合しようとする部材どうしの一方に設けられ、
内側に凹部を有する凹型継手と、接合しようとする部材
どうしの他方に設けられ、前記凹型継手の凹部に嵌合す
る棒状の凸部を有する凸型継手とからなる構築物の部材
間継手装置において、前記凹型継手は、前記凸型継手の
凸部の挿入方向に拡径するテーパ孔を有する外枠体と、
前記テーパ孔内に設置され、外面に前記外枠体のテーパ
孔に対応するテーパを有する楔体と、前記楔体を前記テ
ーパ孔の挿入口側に向けて付勢するコイルばねとからな
り、前記楔体のテーパ角度が１０度以上であることを特
徴とするものである。The invention according to claim 1 of the present application is provided on one of members to be joined,
A concave joint having a concave portion on the inside, and a member-to-member joint device for a structure including a convex joint having a rod-shaped convex portion provided on the other of the members to be joined and fitted into the concave portion of the concave joint, The concave joint has an outer frame body having a tapered hole whose diameter increases in an insertion direction of the convex portion of the convex joint,
A wedge body that is installed in the tapered hole and has a taper corresponding to the tapered hole of the outer frame body on the outer surface, and a coil spring that biases the wedge body toward the insertion opening side of the tapered hole, The taper angle of the wedge body is 10 degrees or more.
【００１２】凸型継手の凸部を凹型継手の凹部の楔体間
に向けて押し込むことで、楔体を外枠体のテーパ孔に沿
って後退させながら楔体を押し広げる形で凸部が挿入さ
れ、一方、コイルばねによって付勢されている楔体がテ
ーパ面での反力も受けて、凸型継手の凸部を外周から締
め付けることで、挿入した凸部を定着させ、引抜き荷重
に抵抗させることができる。By pushing the convex portion of the convex joint between the wedges of the concave portion of the concave joint, the convex portion is formed in such a manner that the wedge is pushed back while being retracted along the tapered hole of the outer frame. On the other hand, the wedge body urged by the coil spring also receives the reaction force on the tapered surface, and tightens the convex portion of the convex joint from the outer periphery to fix the inserted convex portion and resist the pulling load. Can be done.
【００１３】従って、凸型継手の凸部を凹型継手の凹部
に押し込むというワンタッチの操作により継手装置によ
る部材どうしの接合を行うことができ、建設現場におけ
る接合作業の省力化、自動化が容易となる。また、前述
したように、ＰＣの定着構造の場合、引抜き耐力の面で
有利となるようテーパ角度を１０度以下とする考え方が
一般的であるのに対し、本願発明の発明者は後に詳述す
る図６の関係およびセグメント用シール材の部材間に生
じるギャップ（隙間）と止水性との関係を考慮し、部材
間継手装置においてはテーパ角を１０度以上にしておけ
ば通常使用する継手として使用可能であることを見出
し、それに基づいて本願発明を完成させたものである。Accordingly, members can be joined to each other by the joint device by one-touch operation of pushing the convex portion of the convex joint into the concave portion of the concave joint, which facilitates labor saving and automation of the joining operation at the construction site. . Further, as described above, in the case of the fixing structure of the PC, it is general that the taper angle is set to 10 degrees or less so as to be advantageous in terms of pull-out strength, but the inventor of the present invention described later in detail. In consideration of the relationship shown in FIG. 6 and the relationship between the gap (gap) generated between the members of the segment sealing material and the water stoppage, the joint between members is generally used if the taper angle is set to 10 degrees or more. The inventors have found that the present invention can be used, and have completed the present invention based on the finding.
【００１４】請求項２に係る発明は、請求項１に係る構
築物の部材間継手装置において、前記楔体のテーパ角度
が２０度以上である場合を限定したものである。上記図
６において、楔体のテーパ角度を１０度から２０度に変
えることで、所定の引抜き荷重に対する引抜き変位量が
１／２以下になり、引抜き荷重に対する部材間の目開き
を大幅に低減することができる。これは、後に詳述する
ようにセグメント用シール材との関係では、高圧力下で
の使用が可能な範囲である。従って、高圧力下のシール
ドトンネル用のセグメントなどに適用した場合にも、シ
ール材などを適切に配置することで、高い止水性能が期
待できる。According to a second aspect of the present invention, there is provided the joint member for a building according to the first aspect, wherein the wedge body has a taper angle of 20 degrees or more. In FIG. 6 described above, by changing the taper angle of the wedge body from 10 degrees to 20 degrees, the amount of pull-out displacement with respect to a predetermined pull-out load becomes 以下 or less, and the aperture between members with respect to the pull-out load is greatly reduced. be able to. This is a range that can be used under high pressure in relation to the segment sealing material as described in detail later. Therefore, even when applied to a segment for a shield tunnel under a high pressure, a high water stopping performance can be expected by appropriately arranging the seal material and the like.
【００１５】請求項３に係る発明は、請求項１または２
に係る構築物の部材間継手装置において、前記コイルば
ねを予め圧縮した状態に設置しておくことで、コイルば
ねに初期反発力を導入してある場合を限定したものであ
る。後に詳述する図７における引抜き荷重と引抜き変位
量との関係から、テーパ角度が同じ２０度の場合におい
て、コイルばねに予め初期反発力を導入しておくこと
で、引抜き変位量をさらに大幅に低減することができ
る。The invention according to claim 3 is the invention according to claim 1 or 2
In the member-to-member joint device according to the above, the case where the initial repulsive force is introduced into the coil spring is limited by installing the coil spring in a compressed state in advance. From the relationship between the pull-out load and the pull-out displacement in FIG. 7, which will be described in detail later, when the taper angle is the same of 20 degrees, the initial repulsive force is introduced into the coil spring in advance, thereby further increasing the pull-out displacement. Can be reduced.
【００１６】請求項４に係る発明は、請求項３に係る構
築物の部材間継手装置において、前記コイルばねの前記
楔体と反対側の端部には、コイルばねを前記外枠体内に
定着させるための蓋体が設けられており、前記蓋体は前
記外枠体に取り付けられ、蓋体の位置を調整することで
前記コイルばねの初期反発力を調整可能としてある場合
を限定したものである。According to a fourth aspect of the present invention, in the joint member device for a structure according to the third aspect, a coil spring is fixed to the outer frame body at an end of the coil spring opposite to the wedge body. For the initial repulsive force of the coil spring by adjusting the position of the lid, the lid being attached to the outer frame, limiting the case where the initial repulsive force of the coil spring can be adjusted. .
【００１７】コイルばねの場合、圧縮変位量と初期反発
力の関係が直線上で変化するため、蓋体の位置を調整で
きるようにしておくことで、所望の初期反発力を容易に
導入することができる。具体的には、例えば蓋体の外周
にねじを形成し、外枠体にねじ式に螺合できるようにす
れば、蓋体をねじ込むことで蓋体の位置およびコイルば
ねの初期反発力を調整することができる。勿論、蓋体の
位置調整はこれに限定されるものではない。In the case of a coil spring, since the relationship between the amount of compression displacement and the initial repulsion changes linearly, it is possible to easily introduce a desired initial repulsion by adjusting the position of the lid. Can be. Specifically, for example, if a screw is formed on the outer periphery of the lid so that it can be screwed into the outer frame, the position of the lid and the initial repulsive force of the coil spring are adjusted by screwing the lid. can do. Of course, the position adjustment of the lid is not limited to this.
【００１８】[0018]
【発明の実施の形態】図１は本願発明の一実施形態にお
ける凹型継手２と凸型継手１の関係を示したもので、図
２は凹型継手２を構成する楔体３の構造の一例を示した
ものである。図１に示すように、凹型継手２は、外枠体
２ａ内に、孔径ｄを有する楔体３、コイルばね４を設置
し、コイルばね４が正常に機能するよう楔体３と反対側
の端部に蓋体５を取り付けてある。蓋体５の形状や取付
け構造は、コイルばね４に反発力が作用する構造であれ
ば特に限定されない。FIG. 1 shows the relationship between a concave joint 2 and a convex joint 1 according to an embodiment of the present invention. FIG. 2 shows an example of the structure of a wedge 3 constituting the concave joint 2. It is shown. As shown in FIG. 1, the concave joint 2 has a wedge body 3 having a hole diameter d and a coil spring 4 provided in an outer frame body 2a, and the wedge body 3 on the opposite side to the wedge body 3 so that the coil spring 4 functions normally. The lid 5 is attached to the end. The shape and the mounting structure of the lid 5 are not particularly limited as long as the repulsive force acts on the coil spring 4.
【００１９】この例で楔体３は、図２(b) に示すように
３つの楔片からなり、最も断面が大きくなるコイルばね
４側の端部近傍の外周面には凹溝６が形成されており、
凹溝６に輪ゴム等を挿入してこれらの楔片を束ねること
で、外枠体２ａ内への設置が容易となる。In this example, the wedge body 3 is composed of three wedge pieces as shown in FIG. 2B, and a concave groove 6 is formed on the outer peripheral surface near the end on the side of the coil spring 4 where the cross section becomes largest. Has been
By inserting a rubber band or the like into the concave groove 6 and bundling these wedge pieces, installation in the outer frame 2a becomes easy.
【００２０】また、図２(a) に示すように、これらの楔
片は外枠体２ａのテーパ孔に定着するように、テーパ孔
と同等なテーパ角度θを有している。一方、凸型継手１
の棒鋼からなる凸部１ａの径Ｄは、楔体３の孔径ｄより
やや大きく、凸部１ａの先端部には楔体３への挿入を容
易にするための面取りを施してある。As shown in FIG. 2A, these wedge pieces have the same taper angle θ as that of the tapered hole so as to be fixed in the tapered hole of the outer frame 2a. On the other hand, convex joint 1
The diameter D of the convex portion 1a made of steel bar is slightly larger than the hole diameter d of the wedge member 3, and the tip of the convex portion 1a is chamfered to facilitate insertion into the wedge member 3.
【００２１】このような構成において、凸型継手１の凸
部１ａが楔体３に挿入される際、楔体３はその孔径ｄが
凸部１ａの径Ｄと同径に達するまで外枠体２ａのテーパ
孔表面を滑り、かつ楔体３を構成する楔片が挿入軸直角
方向に変位し拡径する。このとき、楔体３の背後には予
めコイルばね４が設置されているため、楔体３の孔径ｄ
が凸部１ａの径Ｄに達した後、コイルばね４のばね作用
により楔体３はそれ以上軸方向に変位しない。また、凸
型継手１と凹型継手２が互いに離間するような引抜き力
が継手部に作用した場合でも、楔体３の縮径作用により
凸型継手１の凸部１ａが抜けない構造となっている。In such a configuration, when the convex portion 1a of the convex joint 1 is inserted into the wedge member 3, the wedge member 3 is moved until the hole diameter d reaches the same diameter as the diameter D of the convex portion 1a. The wedge piece constituting the wedge body 3 slides on the surface of the tapered hole 2a and is displaced in the direction perpendicular to the insertion axis to expand the diameter. At this time, since the coil spring 4 is previously installed behind the wedge body 3, the hole diameter d of the wedge body 3 is set.
After reaching the diameter D of the convex portion 1a, the wedge body 3 is not further displaced in the axial direction by the spring action of the coil spring 4. Further, even when a pulling force such that the convex joint 1 and the concave joint 2 are separated from each other acts on the joint, the convex portion 1a of the convex joint 1 does not come off due to the diameter reduction of the wedge body 3. I have.
【００２２】なお、本願発明は、楔体３のテーパ角度を
大きくすることにより引抜き剛性の向上や引抜き後の残
留目開き量の低減を図っており、例えばシールドトンネ
ル用セグメントを対象とした場合の継手部からの漏水の
影響を考慮した場合等、テーパ角度は１０度以上必要で
あり、また、さらに高圧力下での漏水の影響を考慮した
場合、テーパ角度を２０度以上とすることが望ましい。In the present invention, the taper angle of the wedge body 3 is increased to improve the pull-out stiffness and to reduce the residual opening after the pull-out. A taper angle of 10 degrees or more is necessary, for example, in consideration of the effect of water leakage from the joint, and a taper angle of 20 degrees or more is desirable in consideration of the effect of water leakage under high pressure. .
【００２３】図３は本願発明の他の実施形態を示したも
ので、外枠体２ａの凸型継手挿入口８側先端部に、挿入
口８に向けて拡径するテーパ孔９を形成し、凸型継手１
の凸部１ａが挿入される際、楔体３の中心軸と凸部１ａ
の中心軸が多少ずれていても挿入できるようにしてあ
る。FIG. 3 shows another embodiment of the present invention, in which a tapered hole 9 whose diameter increases toward the insertion port 8 is formed at the tip of the outer frame 2a on the side of the convex joint insertion port 8. As shown in FIG. , Convex joint 1
When the convex portion 1a is inserted, the central axis of the wedge body 3 and the convex portion 1a
Can be inserted even if the center axis is slightly shifted.
【００２４】また、楔体の孔７の表面と、凸部１ａの表
面には、それぞれ溝３ａ、１ｂが形成されており、楔体
３と凸部１ａとの定着力を増大させ、引抜き剛性を高め
ている。なお、両者の溝条件を一致させると、さらに引
抜き剛性が向上することが確認されている。Grooves 3a and 1b are formed on the surface of the hole 7 of the wedge body and the surface of the projection 1a, respectively, to increase the fixing force between the wedge body 3 and the projection 1a and to increase the pull-out rigidity. Is increasing. It has been confirmed that when the conditions of the two grooves are matched, the pull-out rigidity is further improved.
【００２５】また、本実施形態において、コイルばね４
を押さえるための蓋体５はねじ蓋となっており、コイル
ばね４を圧縮させた状態で固定されている。この蓋体５
の位置を調整し、予め圧縮させたコイルばね４の反発力
を調整することで、さらに引抜き剛性が向上する。ただ
し蓋体５の種類、取付け方法はコイルばね４を圧縮でき
る構造、方法であれば特に限定されない。In this embodiment, the coil spring 4
The lid 5 for pressing the coil spring 4 is a screw lid, and is fixed with the coil spring 4 compressed. This lid 5
By adjusting the position of the coil spring 4 and adjusting the repulsive force of the coil spring 4 compressed in advance, the pull-out rigidity is further improved. However, the type and mounting method of the lid 5 are not particularly limited as long as the structure and method can compress the coil spring 4.
【００２６】図４は本願発明を鋼コンクリート合成構造
の部材の継手部に適用した場合の一実施形態を示したも
ので、図４(a) が接合前、図４(b) が接合後の断面図で
ある。この例では、外枠体２ａを段状に加工し、縮径し
た開口部側の端部を部材表面に表れる鋼製の継手板１１
に係合させる形で取り付けてあり、継手部に作用する引
抜き力に対して抵抗可能な構造となっている。また、凸
型継手１のせん断強度により、所定のせん断力に対して
も抵抗可能な構造となっている。FIGS. 4 (a) and 4 (b) show an embodiment in which the present invention is applied to a joint portion of a steel-concrete composite structure member. FIG. 4 (a) shows the state before joining, and FIG. 4 (b) shows the state after joining. It is sectional drawing. In this example, a steel joint plate 11 is formed by processing the outer frame body 2a into a stepped shape and reducing the diameter of the end portion on the opening side to appear on the surface of the member.
And a structure capable of resisting a pull-out force acting on the joint portion. Further, due to the shear strength of the convex joint 1, the structure has a structure capable of resisting a predetermined shear force.
【００２７】図５はコンクリート構造物に本願発明の継
手装置を適用した場合の一実施形態を示したものであ
る。外枠体２ａにアンカー筋１３を取り付けることによ
りコンクリート構造物と一体化し、継手部に作用する引
抜き力に対して、コンクリート構造物にひび割れ等の損
害を与えることなく、本願発明の継手性能を十分に発揮
させることが可能となる。FIG. 5 shows an embodiment in which the joint device of the present invention is applied to a concrete structure. By attaching the anchor bar 13 to the outer frame 2a, it is integrated with the concrete structure, and the joint performance of the present invention can be sufficiently improved without causing damage such as cracking to the concrete structure against the pulling force acting on the joint. It is possible to make use of it.
【００２８】図６は、図３の実施形態のように、楔体３
のテーパ角度をパラメータとして実験を実施した例であ
る。テーパ角度が８度より小さい場合は、引抜き変位が
大き過ぎるため、テーパ角度８度、１０度、２０度、３
０度について凸型継手挿入後の引抜き荷重Ｐと引抜き変
位量δの関係を表したものである。何れの実験も引抜き
載荷２０×９．８ｋＮ到達後、破壊前に除荷している。FIG. 6 shows the wedge body 3 as in the embodiment of FIG.
This is an example in which an experiment was carried out using the taper angle as a parameter. If the taper angle is smaller than 8 degrees, the drawing displacement is too large, so that the taper angles are 8 degrees, 10 degrees, 20 degrees, and 3 degrees.
The relationship between the pull-out load P and the pull-out displacement δ after inserting the convex joint at 0 ° is shown. In each of the experiments, after the pulling load reached 20 × 9.8 kN, the load was removed before breaking.
【００２９】これより楔体３のテーパ角度が大きいほど
載荷時の引抜き変位量δが小さいことが分かる。また、
除荷後の残留変位量は、１０．２ｍｍ（テーパ角８
度）、７．８ｍｍ（テーパ角１０度）、２．１ｍｍ（テ
ーパ角２０度）、１．１ｍｍ（テーパ角３０度）と角度
が大きくなるに従い減少している。この残留変位量は、
例えばシールド用セグメントを対象とした場合、継手の
止水性能に影響を与えるものであり、シール材の止水性
能を考慮する必要がある。From this, it can be seen that the larger the taper angle of the wedge body 3, the smaller the pull-out displacement amount δ during loading. Also,
The residual displacement after unloading is 10.2 mm (taper angle 8
Degrees), 7.8 mm (taper angle of 10 degrees), 2.1 mm (taper angle of 20 degrees), and 1.1 mm (taper angle of 30 degrees). This residual displacement is
For example, when the shield segment is used, it affects the water stopping performance of the joint, and it is necessary to consider the water stopping performance of the sealing material.
【００３０】例えば、建設の機械化1999年７月号（No.5
93）〔日本建設機械化協会発行〕の第７１頁には、セグ
メント端部間の溝に嵌め込んだセグメントシール材とし
ての圧縮性シールについて、横方向の許容範囲のずれに
対し、セグメント部材間のギャップ（隙間）と圧力との
関係が示されており、ギャップの上限は９．５ｍｍ程度
であると言える。よって、図６の実験結果から判断する
と、楔体３のテーパ角度は１０度以上とする必要があ
る。これより、請求項１では楔体のテーパ角度は１０度
以上と限定した。For example, the construction mechanization, July 1999 issue (No. 5)
93) On page 71 of the Japan Construction Mechanization Association, regarding the compressible seal as a segment seal material fitted into the groove between the end portions of the segment, The relationship between the gap (gap) and the pressure is shown, and it can be said that the upper limit of the gap is about 9.5 mm. Therefore, judging from the experimental results in FIG. 6, the taper angle of the wedge body 3 needs to be 10 degrees or more. Accordingly, in claim 1, the taper angle of the wedge body is limited to 10 degrees or more.
【００３１】また、高圧力域で止水性を確保するために
は、ギャップの上限は上記文献から２．２ｍｍ程度必要
と考えられる。従って、同様に、図６から判断すれば、
楔体３のテーパ角度は２０度以上とする必要がある。こ
れにより請求項２では楔体のテーパ角度は２０度以上と
限定した。From the above-mentioned literature, it is considered that the upper limit of the gap is required to be about 2.2 mm in order to secure water stoppage in a high pressure range. Therefore, similarly, judging from FIG.
The taper angle of the wedge body 3 needs to be 20 degrees or more. Thus, in claim 2, the taper angle of the wedge body is limited to 20 degrees or more.
【００３２】図７は上記実験条件の楔体テーパ角２０度
について、ばねの初期反発力を０Ｎ、１５×９．８Ｎ、
３０×９．８Ｎと変化させた場合の、凸型継手挿入後の
引抜き荷重と引抜き変位量の関係をグラフに表したもの
である。ばねの初期反発力のない細線に対し、ばねの初
期反発力を導入した破線、太線は引抜き剛性が向上し、
また、残留変位量についても初期反発力を導入しなかっ
た場合の２．１ｍｍから１ｍｍ以内に大幅に減少してい
る。この結果から請求項３においては、コイルばねの初
期反発力の導入について限定した。FIG. 7 shows that the initial repulsive force of the spring is 0N, 15 × 9.8N, and the wedge taper angle is 20 degrees under the above experimental conditions.
9 is a graph showing a relationship between a pulling load and a pulling displacement amount after the insertion of the convex joint when changing to 30 × 9.8 N. The dashed line and the bold line that introduce the initial repulsion force of the spring improve the pull-out rigidity, while the thin line without the initial repulsion force of the spring improves.
Also, the amount of residual displacement is greatly reduced from 2.1 mm when no initial repulsion is introduced to 1 mm or less. Based on this result, in claim 3, the introduction of the initial repulsive force of the coil spring is limited.
【００３３】[0033]
【発明の効果】本願発明により、接合しようとする部材
の凸型継手を他方の凹型継手に一方向挿入するだけで引
抜き力に対して、所定の引抜き耐力と剛性を有する継手
構造が得られ、かつ凸型継手のせん断強度により、所定
のせん断力に対しても抵抗可能な構造が得られる。According to the present invention, it is possible to obtain a joint structure having a predetermined pull-out strength and rigidity against a pull-out force only by inserting a convex joint of a member to be joined into the other concave joint in one direction, In addition, a structure capable of resisting a predetermined shear force is obtained by the shear strength of the convex joint.
【図１】 本願発明の一実施形態における凹型継手と凸
型継手の関係を示す軸方向の断面図である。FIG. 1 is an axial sectional view showing a relationship between a concave joint and a convex joint according to an embodiment of the present invention.
【図２】 (a) は凹型継手を構成する楔体のみの軸方向
の断面図であり、(b) はそのＡ−Ａ線断面図である。FIG. 2A is an axial sectional view of only a wedge body constituting a concave joint, and FIG. 2B is a sectional view taken along line AA.
【図３】 本願発明の他の実施形態における凹型継手と
凸型継手の関係を示す軸方向の断面図である。FIG. 3 is an axial sectional view showing a relationship between a concave joint and a convex joint according to another embodiment of the present invention.
【図４】 本願発明のさらに他の実施形態における凹型
継手と凸型継手の関係を示したもので、(a) が接合前の
状態の軸方向の断面図、(b) が接合後の状態の軸方向の
断面図である。4A and 4B show a relationship between a concave joint and a convex joint according to still another embodiment of the present invention, wherein FIG. 4A is an axial sectional view of a state before joining, and FIG. It is sectional drawing of the axial direction of FIG.
【図５】 本願発明のさらに他の実施形態における凹型
継手と凸型継手の関係を示す軸方向の断面図である。FIG. 5 is an axial sectional view showing a relationship between a concave joint and a convex joint in still another embodiment of the present invention.
【図６】 コイルばねの初期反発力を０とし、楔体のテ
ーパ角度を変化させた場合の引抜き荷重と引抜き変位量
の関係図を示したグラフである。FIG. 6 is a graph showing the relationship between the pulling load and the pulling displacement when the initial repulsive force of the coil spring is set to 0 and the taper angle of the wedge body is changed.
【図７】 楔体テーパ角を２０度とし、ばねの初期反発
力を変化させた場合の引抜き荷重と引抜き変位量の関係
図を示したグラフである。FIG. 7 is a graph showing the relationship between the pulling load and the pulling displacement when the initial repulsive force of the spring is changed with a wedge body taper angle of 20 degrees.
１…凸型継手、１ａ…凸部、１ｂ…溝、２…凹型継手、
２ａ…外枠体、３…楔体、３ａ…溝、４…コイルばね、
５…蓋体、６…凹溝、７…楔体の孔、８…挿入口、９…
テーパ孔、１１…継手板、１２…コンクリート、１３…
アンカー筋DESCRIPTION OF SYMBOLS 1 ... convex joint, 1a ... convex part, 1b ... groove, 2 ... concave joint,
2a: outer frame, 3: wedge, 3a: groove, 4: coil spring,
5 ... lid, 6 ... concave groove, 7 ... hole of wedge, 8 ... insertion opening, 9 ...
Taper hole, 11 ... joint plate, 12 ... concrete, 13 ...
Anchor muscle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 幸夫 大阪市中央区北浜４丁目５番33号 住友金 属工業株式会社内 (72)発明者 岩橋 正佳 大阪市中央区北浜４丁目５番33号 住友金 属工業株式会社内 (72)発明者 金好 昭彦 大阪市中央区北久宝寺町３丁目６番１号 株式会社鴻池組内 (72)発明者 石倉 洋一 大阪市中央区北久宝寺町３丁目６番１号 株式会社鴻池組内 (72)発明者 古川 和義 大阪市中央区北久宝寺町３丁目６番１号 株式会社鴻池組内 Ｆターム(参考） 2D055 GC04 3J037 AA09 BB03 DA02 DA13 DC10 KA10 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yukio Abe 4-5-33 Kitahama, Chuo-ku, Osaka City Inside Sumitomo Metal Industries, Ltd. (72) Inventor Masayoshi Iwahashi 4-5-33 Kitahama, Chuo-ku, Osaka City Sumitomo Metal Industries Co., Ltd. (72) Inventor Akihiko Kanayoshi 3-6-1 Kitakyuhoji-cho, Chuo-ku, Osaka-shi Konoike-gumi Co., Ltd. (72) Yoichi Ishikura 3-6-1 Kitakyuhoro-cho, Chuo-ku, Osaka No. 1 Konoike Gumi Co., Ltd. (72) Inventor Kazuyoshi Furukawa 3-6-1 Kitakyuhoji-cho, Chuo-ku, Osaka-shi Konoike Guminai F-term (reference) 2D055 GC04 3J037 AA09 BB03 DA02 DA13 DC10 KA10
Claims (4)
けられ、内側に凹部を有する凹型継手と、接合しようと
する部材どうしの他方に設けられ、前記凹型継手の凹部
に嵌合する棒状の凸部を有する凸型継手とからなる構築
物の部材間継手装置において、前記凹型継手は、前記凸
型継手の凸部の挿入方向に拡径するテーパ孔を有する外
枠体と、前記テーパ孔内に設置され、外面に前記外枠体
のテーパ孔に対応するテーパを有する楔体と、前記楔体
を前記テーパ孔の挿入口側に向けて付勢するコイルばね
とからなり、前記楔体のテーパ角度が１０度以上である
ことを特徴とする構築物の部材間継手装置。1. A concave joint provided on one side of members to be joined and having a concave portion inside, and a bar-shaped convex provided on the other side of the members to be joined and fitted into the concave portion of the concave joint. In a member joint device for a construct comprising a convex joint having a portion, the concave joint has an outer frame body having a tapered hole whose diameter increases in an insertion direction of the convex portion of the convex joint, and the outer frame body has a tapered hole. A wedge body which is installed and has a taper corresponding to the tapered hole of the outer frame body on the outer surface; and a coil spring for urging the wedge body toward the insertion opening side of the tapered hole, wherein the taper of the wedge body is An inter-joint device for a building, wherein the angle is 10 degrees or more.
る請求項１記載の構築物の部材間継手装置。2. The member connecting device according to claim 1, wherein the taper angle of the wedge body is 20 degrees or more.
置しておくことで、コイルばねに初期反発力を導入して
ある請求項１または２記載の構築物の部材間継手装置。3. The member connecting device for a building according to claim 1, wherein an initial repulsive force is introduced into the coil spring by installing the coil spring in a compressed state in advance.
部には、コイルばねを前記外枠体内に定着させるための
蓋体が設けられており、蓋体の位置を調整することで前
記コイルばねの初期反発力を調整可能としてある請求項
３記載の構築物の部材間継手装置。4. A lid for fixing the coil spring in the outer frame is provided at an end of the coil spring opposite to the wedge body, and the position of the lid is adjusted by adjusting the position of the lid. The joint device according to claim 3, wherein an initial repulsion force of the coil spring is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35906199A JP2001173625A (en) | 1999-12-17 | 1999-12-17 | Joint device between members for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35906199A JP2001173625A (en) | 1999-12-17 | 1999-12-17 | Joint device between members for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001173625A true JP2001173625A (en) | 2001-06-26 |
Family
ID=18462539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35906199A Pending JP2001173625A (en) | 1999-12-17 | 1999-12-17 | Joint device between members for construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001173625A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004137840A (en) * | 2002-10-21 | 2004-05-13 | Ohbayashi Corp | Joint structure of segment |
| JP2004285598A (en) * | 2003-03-19 | 2004-10-14 | Taisei Corp | Joint structure of segment |
| JP2004332209A (en) * | 2003-04-30 | 2004-11-25 | Mitsutomo:Kk | Connecting device |
| JP2005226286A (en) * | 2004-02-12 | 2005-08-25 | Ishikawajima Constr Materials Co Ltd | Joint structure of segments |
| ITPD20100131A1 (en) * | 2010-04-28 | 2011-10-29 | Impreservice Srl | FIXING DEVICE OF CONCRETE ELEMENTS |
| CN102287432A (en) * | 2011-07-28 | 2011-12-21 | 中国船舶重工集团公司第七二二研究所 | Floating positioning cone connecting device |
| KR200466989Y1 (en) | 2011-03-18 | 2013-05-20 | 김해성 | Valve-cap unit for gas time valve |
| JP2017161010A (en) * | 2016-03-10 | 2017-09-14 | 株式会社Ｉｈｉ建材工業 | Junction structure of joint fitting and junction method |
| JP2018100500A (en) * | 2016-12-19 | 2018-06-28 | 株式会社大林組 | Ring joint |
| JP2019163663A (en) * | 2018-03-20 | 2019-09-26 | 前田建設工業株式会社 | Connection structure of steel supports and connection method of the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048481A (en) * | 1990-04-27 | 1992-01-13 | Mitsutomo:Kk | Coupler |
| JPH08205354A (en) * | 1995-01-26 | 1996-08-09 | Matsushita Electric Works Ltd | Box for wiring |
-
1999
- 1999-12-17 JP JP35906199A patent/JP2001173625A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048481A (en) * | 1990-04-27 | 1992-01-13 | Mitsutomo:Kk | Coupler |
| JPH08205354A (en) * | 1995-01-26 | 1996-08-09 | Matsushita Electric Works Ltd | Box for wiring |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004137840A (en) * | 2002-10-21 | 2004-05-13 | Ohbayashi Corp | Joint structure of segment |
| JP2004285598A (en) * | 2003-03-19 | 2004-10-14 | Taisei Corp | Joint structure of segment |
| JP2004332209A (en) * | 2003-04-30 | 2004-11-25 | Mitsutomo:Kk | Connecting device |
| JP2005226286A (en) * | 2004-02-12 | 2005-08-25 | Ishikawajima Constr Materials Co Ltd | Joint structure of segments |
| ITPD20100131A1 (en) * | 2010-04-28 | 2011-10-29 | Impreservice Srl | FIXING DEVICE OF CONCRETE ELEMENTS |
| KR200466989Y1 (en) | 2011-03-18 | 2013-05-20 | 김해성 | Valve-cap unit for gas time valve |
| CN102287432A (en) * | 2011-07-28 | 2011-12-21 | 中国船舶重工集团公司第七二二研究所 | Floating positioning cone connecting device |
| JP2017161010A (en) * | 2016-03-10 | 2017-09-14 | 株式会社Ｉｈｉ建材工業 | Junction structure of joint fitting and junction method |
| JP2018100500A (en) * | 2016-12-19 | 2018-06-28 | 株式会社大林組 | Ring joint |
| JP2019163663A (en) * | 2018-03-20 | 2019-09-26 | 前田建設工業株式会社 | Connection structure of steel supports and connection method of the same |
| JP7338952B2 (en) | 2018-03-20 | 2023-09-05 | 前田建設工業株式会社 | Connection structure and connection method of steel shoring |
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