JP2721472B2 - Concrete structure joint structure - Google Patents

Concrete structure joint structure

Info

Publication number
JP2721472B2
JP2721472B2 JP5155205A JP15520593A JP2721472B2 JP 2721472 B2 JP2721472 B2 JP 2721472B2 JP 5155205 A JP5155205 A JP 5155205A JP 15520593 A JP15520593 A JP 15520593A JP 2721472 B2 JP2721472 B2 JP 2721472B2
Authority
JP
Japan
Prior art keywords
pressing
pressing member
bolt
pressing portion
bolt insertion
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.)
Expired - Fee Related
Application number
JP5155205A
Other languages
Japanese (ja)
Other versions
JPH0726613A (en
Inventor
秀一 鈴木
定義 中務
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAYAKAWA GOMU KK
Original Assignee
HAYAKAWA GOMU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HAYAKAWA GOMU KK filed Critical HAYAKAWA GOMU KK
Priority to JP5155205A priority Critical patent/JP2721472B2/en
Publication of JPH0726613A publication Critical patent/JPH0726613A/en
Application granted granted Critical
Publication of JP2721472B2 publication Critical patent/JP2721472B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Sewage (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、地下道、共同溝等を構
築するためのボックスカルバート、Ｕ型水路等の、現場
打ちコンクリートからなる構造物を連結する継手構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for connecting structures made of cast-in-place concrete, such as a box culvert and a U-shaped channel for constructing an underpass, a common ditch, and the like.

【０００２】[0002]

【従来の技術】地下道、共同溝等を構築するためには、
多数の構造物を継手構造で連結していく必要がある。し
かし、基礎地盤の不等沈下や地震等により、構造物間の
継手構造が破損したり、構造物間に隙間が生じたりし
て、水漏れや構造物の破損が生じていた。こうした問題
を解決するため、構造物間を可とう性の継手で連結し、
この継手で構造物の変位を吸収することで、水漏れや構
造物の破損を防止する方法がある。2. Description of the Related Art In order to construct an underpass, a common ditch, and the like,
It is necessary to connect many structures with a joint structure. However, due to uneven settlement of the foundation ground, an earthquake, or the like, the joint structure between the structures is damaged, or a gap is formed between the structures, thereby causing water leakage or damage to the structures. To solve these problems, the structures are connected with flexible joints,
There is a method for preventing water leakage and damage to the structure by absorbing the displacement of the structure with this joint.

【０００３】図１は、こうした継手構造を示す断面図で
ある。一対の現場打ちコンクリート構造物１の相対向す
る端部が、各コンクリート構造物１の肉薄の段差部分３
である。アンカー５が段差部分３内に埋設されている。
相対向する段差部分３が、帯状の弾性材２によって連結
されている。図３（ａ）は、弾性材２を示す斜視図であ
り、図３（ｂ）は、押圧材７を示す斜視図である。弾性
材２の中央に断面略半円状の連結部２ａが設けられ、連
結部２ａの両側にそれぞれ押圧部２ｂが形成されてい
る。各連結部２ｂにボルト挿通孔１０が所定の間隔で多
数形成されている。押圧材７も帯状であり、ボルト挿通
孔１１が所定の間隔で多数形成されている。段差部分３
上に枠材６が設置されており、枠材６上に押圧部２ｂが
接触しており、押圧部２ｂ上に押圧材７が接触してい
る。ボルト挿通孔１０及び１１にボルト４が挿通され、
ボルト４にナット８が嵌め合わされ、ナット８によって
押圧材７が押さえられている。ボルト４がアンカー５に
連結されている。FIG. 1 is a sectional view showing such a joint structure. Opposite ends of the pair of cast-in-place concrete structures 1 are thin step portions 3 of each concrete structure 1.
It is. An anchor 5 is embedded in the step portion 3.
Opposing step portions 3 are connected by a band-shaped elastic material 2. FIG. 3A is a perspective view illustrating the elastic member 2, and FIG. 3B is a perspective view illustrating the pressing member 7. A connecting portion 2a having a substantially semicircular cross section is provided at the center of the elastic member 2, and pressing portions 2b are formed on both sides of the connecting portion 2a. A large number of bolt insertion holes 10 are formed at predetermined intervals in each connecting portion 2b. The pressing member 7 is also band-shaped, and a large number of bolt insertion holes 11 are formed at predetermined intervals. Step 3
The frame member 6 is provided on the upper side, the pressing portion 2b is in contact with the frame member 6, and the pressing member 7 is in contact with the pressing portion 2b. The bolt 4 is inserted through the bolt insertion holes 10 and 11,
A nut 8 is fitted to the bolt 4, and the pressing member 7 is pressed by the nut 8. Bolt 4 is connected to anchor 5.

【０００４】[0004]

【発明が解決しようとする課題】しかし、上記の継手構
造には、次の問題があった。 （１）弾性材２の押圧部２ｂに多数のボルト挿通孔１０
を設け、かつ押圧材７に多数のボルト挿通孔１１を設
け、各ボルト挿通孔１０、１１にボルト４を挿通する必
要がある。従って、各ボルト挿通孔１０、１１を孔明け
する際に、非常に厳しい寸法管理を必要とするので、量
産が難しいし、製品の歩留りが悪くなる。しかも、各ボ
ルト挿通孔１０、１１にそれぞれボルト４を挿通する手
作業は、ボルトの数が多いだけに極めて煩雑であり、取
り付け作業、交換作業に大変な労力を必要とする。 （２）段差部分３を設けるために、枠材６を埋め殺す必
要があるので、枠材６が多量に必要であり、コストが高
い。しかも、図２に示すように、現場打ちコンクリート
と枠材６との間に、気泡が溜まったり、ジャンカ等が生
じたりして、打設不良部分９が発生しても、枠材６の外
からは分からない。この打設不良部分９が、漏水の原因
となる。However, the above joint structure has the following problems. (1) A large number of bolt insertion holes 10 are formed in the pressing portion 2b of the elastic member 2.
It is necessary to provide a large number of bolt insertion holes 11 in the pressing member 7, and to insert the bolts 4 into the respective bolt insertion holes 10, 11. Therefore, when the bolt insertion holes 10 and 11 are drilled, very strict dimensional control is required, so that mass production is difficult and product yield is deteriorated. In addition, the manual operation of inserting the bolts 4 into the bolt insertion holes 10 and 11 is extremely complicated because of the large number of bolts, and requires a great deal of labor for mounting and replacing. (2) Since the frame member 6 needs to be buried in order to provide the stepped portion 3, a large amount of the frame member 6 is required and the cost is high. Moreover, as shown in FIG. 2, even if air bubbles accumulate or junkers are generated between the cast-in-place concrete and the frame material 6, and the poor placement portion 9 occurs, the outside of the frame material 6 is not affected. I do not know from. The poor casting portion 9 causes water leakage.

【０００５】本発明の課題は、弾性材や押圧材の製造時
に、厳しい寸法管理を必要とせず、量産を容易にできる
ようにすることであり、かつ継手構造の取り付け作業を
簡単に行えるようにすることである。SUMMARY OF THE INVENTION It is an object of the present invention to facilitate mass production without requiring strict dimensional control during the production of an elastic material or a pressing material, and to facilitate the work of mounting a joint structure. It is to be.

【０００６】[0006]

【課題を解決するための手段】本発明に係るコンクリー
ト構造物の継手構造では、一対の現場打ちコンクリート
構造物の相対向する端部間が帯状の弾性材で連結されて
いる。この弾性材の両側にそれぞれ内側押圧部、外側押
圧部及びボルト挿通部が形成され、ボルト挿通部が内側
押圧部及び外側押圧部に比べて肉薄である。前記端部上
に内側押圧部、外側押圧部及びボルト挿通部が載置され
ている。内側押圧部上に第一の押圧材が接触しており、
外側押圧部上に第二の押圧材が接触している。第一の押
圧材及び第二の押圧材が押さえ板によって押圧されてお
り、第一の押圧材と第二の押圧材との間にボルトが通さ
れている。SUMMARY OF THE INVENTION In a joint structure for a concrete structure according to the present invention, opposing ends of a pair of cast-in-place concrete structures are connected by a band-like elastic material. An inner pressing portion, an outer pressing portion, and a bolt insertion portion are respectively formed on both sides of the elastic member, and the bolt insertion portion is thinner than the inner pressing portion and the outer pressing portion. An inner pressing portion, an outer pressing portion, and a bolt insertion portion are placed on the end. The first pressing member is in contact with the inner pressing portion,
The second pressing member is in contact with the outer pressing portion. The first pressing member and the second pressing member are pressed by a pressing plate, and a bolt is passed between the first pressing member and the second pressing member.

【０００７】[0007]

【作用】本発明に係るコンクリート構造物の継手構造に
よれば、帯状の弾性材の両側にそれぞれ内側押圧部、外
側押圧部及びボルト挿通部が形成され、ボルト挿通部が
内側押圧部及び外側押圧部に比べて肉薄である。従っ
て、現場で弾性材をボルトによって取り付ける際に、肉
薄のボルト挿通部をカッター等で切り取り、これにボル
トを挿通すれば、極く容易に弾性材を端部上に取り付け
ることができる。According to the joint structure of a concrete structure according to the present invention, an inner pressing portion, an outer pressing portion and a bolt insertion portion are formed on both sides of the belt-shaped elastic member, respectively, and the bolt insertion portion is formed by the inner pressing portion and the outer pressing portion. It is thinner than the part. Therefore, when attaching the elastic material with bolts at the site, the thin bolt insertion portion is cut off with a cutter or the like, and the bolt is inserted through the thin bolt insertion portion, so that the elastic material can be attached on the end portion very easily.

【０００８】しかも、内側押圧部上に第一の押圧材が接
触しており、外側押圧部上に第二の押圧材が接触してお
り、第一の押圧材及び第二の押圧材が押さえ板によって
押圧されており、第一の押圧材と第二の押圧材との間に
ボルトが通されている。従って、極く容易に第一の押圧
材及び第二の押圧材をボルトで取り付けることができ
る。Further, the first pressing member is in contact with the inner pressing portion, the second pressing member is in contact with the outer pressing portion, and the first pressing member and the second pressing member are in contact with each other. It is pressed by a plate, and a bolt is passed between the first pressing member and the second pressing member. Therefore, the first pressing member and the second pressing member can be very easily attached with the bolts.

【０００９】このように、弾性材にボルト挿通孔を設け
る必要がなく、押圧材にボルト挿通孔を設ける必要がな
い。従って、各ボルト挿通孔を孔明けするための厳しい
寸法管理を必要とせず、量産が容易である。しかも、各
ボルト挿通孔にボルトを挿通する手作業を必要としな
い。Thus, there is no need to provide a bolt insertion hole in the elastic member, and it is not necessary to provide a bolt insertion hole in the pressing member. Therefore, strict dimensional control for drilling each bolt insertion hole is not required, and mass production is easy. Moreover, manual work for inserting a bolt into each bolt insertion hole is not required.

【００１０】[0010]

【実施例】以下、本発明の実施例に係る継手構造を、そ
の施工手順に沿って説明する。まず、図５（ａ）に示す
ように、現場打ちコンクリート１に段差部分３を形成す
る。図５（ｂ）は、ナット１２を備えたＬ形アンカー５
を示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A joint structure according to an embodiment of the present invention will be described below in accordance with the construction procedure. First, as shown in FIG. 5A, a stepped portion 3 is formed in cast-in-place concrete 1. FIG. 5B shows an L-shaped anchor 5 having a nut 12.
FIG.

【００１１】図４、図６に示すように、箱抜き型枠１５
の表面に、ナット１２付きのアンカー５が、仮止めボル
ト１３によって固定されている。コンクリート打設時
に、箱抜き型枠１５の釘穴１４に釘を通して、箱抜き型
枠１５を型枠の本体に釘止め固定する。次いで、コンク
リートを打設し、型枠を解体するときに、釘及び仮止め
ボルト１３を取り外して、箱抜き型枠１５を除去する。As shown in FIG. 4 and FIG.
An anchor 5 with a nut 12 is fixed to a surface of the bracket by a temporary fixing bolt 13. At the time of concrete casting, the box-cutting formwork 15 is nailed and fixed to the main body of the formwork by passing a nail through the nail hole 14 of the box-forming formwork 15. Next, when concrete is cast and the formwork is disassembled, the nails and the temporary fixing bolts 13 are removed, and the boxless formwork 15 is removed.

【００１２】この結果、図５（ａ）に示すように、他の
部分よりも肉薄の段差部分３がコンクリート構造物１の
端部に形成される。段差部分３内には、アンカー５が埋
設され、ナット１２が段差部分３の表面付近に現れてい
る。As a result, as shown in FIG. 5A, a stepped portion 3 which is thinner than other portions is formed at the end of the concrete structure 1. An anchor 5 is embedded in the step portion 3, and a nut 12 appears near the surface of the step portion 3.

【００１３】この段階で、段差部分３の表面には、現場
打ちコンクリートがそのまま露出している。従って、も
し表面にジャンカや気泡等による打設不良部分が生じた
場合には、この打設不良部分を、エポキシパテ、防水モ
ルタル等で平滑に塗りなおすことができる。この結果、
打設不良部分による漏水は生じない。At this stage, the cast-in-place concrete is exposed on the surface of the step portion 3 as it is. Therefore, if a defective casting portion occurs due to a jumper, a bubble, or the like on the surface, the defective casting portion can be smoothly reapplied with an epoxy putty, a waterproof mortar, or the like. As a result,
There is no leakage due to poor casting.

【００１４】図７に概略的に示すように、コンクリート
構造物１は、例えば長方形の２個のボックスカルバート
からなり、コンクリート構造物１の相対向する端部間
が、帯状の弾性材２で連結されている。図８は、ボック
スカルバート１を概略的に示す平面図である。ボックス
カルバート１の周縁に段差部分３が設けられており、ボ
ックスカルバート１の四隅では段差部分３が円弧曲線状
になっている。As shown schematically in FIG. 7, the concrete structure 1 is composed of, for example, two rectangular box culverts, and opposing ends of the concrete structure 1 are connected by a band-like elastic material 2. Have been. FIG. 8 is a plan view schematically showing the box culvert 1. The stepped portion 3 is provided on the periphery of the box culvert 1, and the stepped portion 3 has a circular arc shape at four corners of the box culvert 1.

【００１５】図９は、本実施例に係る継手構造を示す断
面図であり、図１１は、図９の継手構造を示す概略平面
図である。図１０（ａ）、（ｂ）、（ｃ）は、それぞれ
この継手構造用の部品を示す斜視図である。FIG. 9 is a sectional view showing the joint structure according to the present embodiment, and FIG. 11 is a schematic plan view showing the joint structure of FIG. FIGS. 10A, 10B, and 10C are perspective views showing parts for this joint structure.

【００１６】図９、図１０（ａ）に示すように、弾性材
２２は、断面半円状部分２２ａが中央に設けられ、半円
状部分２２ａの両側に、それぞれ内側押圧部２２ｂ、外
側押圧部２２ｅ及びボルト挿通部２２ｄが形成されてい
る。ボルト挿通部２２ｄは、内側押圧部２２ｂと外側押
圧部２２ｅとの間に設けられており、ボルト挿通部２２
ｄと内側押圧部２２ｂとの境界に突起２２ｃが形成され
ている。ボルト挿通部２２ｄは、内側押圧部２２ｂ及び
外側押圧部２２ｅに比べて肉薄である。As shown in FIGS. 9 and 10 (a), the elastic member 22 has a semicircular section 22a at the center, and an inner pressing section 22b and an outer pressing section 22 on both sides of the semicircular section 22a. A portion 22e and a bolt insertion portion 22d are formed. The bolt insertion portion 22d is provided between the inner pressing portion 22b and the outer pressing portion 22e.
A protrusion 22c is formed at the boundary between the innermost pressing portion 22d and the inner pressing portion 22b. The bolt insertion portion 22d is thinner than the inner pressing portion 22b and the outer pressing portion 22e.

【００１７】図９、図１０（ｂ）、図１１に示すよう
に、第一の押圧材２７Ａ及び第二の押圧材２７Ｂは、い
ずれも帯状である。図９、図１０（ｃ）、図１１に示す
ように、押さえ板２３の平面的形状は略長方形であり、
貫通孔２３ａが設けられている。ボルト２４は略円柱状
である。As shown in FIGS. 9, 10 (b), and 11, both the first pressing member 27A and the second pressing member 27B are band-shaped. As shown in FIGS. 9, 10 (c) and 11, the planar shape of the holding plate 23 is substantially rectangular,
A through hole 23a is provided. The bolt 24 is substantially cylindrical.

【００１８】図９に示す継手構造を施工する際には、段
差部分３の表面に粘着材、特にブチル系粘着材を貼り付
けるのが好ましく、これにより内側押圧部２２ｂ、外側
押圧部２２ｅによる止水効果が一層高まる。When the joint structure shown in FIG. 9 is constructed, it is preferable to attach an adhesive, particularly a butyl-based adhesive, to the surface of the stepped portion 3, so that the inner pressing portion 22b and the outer pressing portion 22e stop the adhesive. Water effect is further enhanced.

【００１９】段差部分３上に弾性材２２を設置する。こ
の結果、半円状部分２２ａが、一対の段差部分３間に架
け渡され、内側押圧部２２ｂ、外側押圧部２２ｅ及びボ
ルト挿通部２２ｄが載置される。段差部分３と弾性材２
２とが直接接触するか、または両者の間に粘着材が挟ま
れる。An elastic member 22 is placed on the step 3. As a result, the semicircular portion 22a is bridged between the pair of step portions 3, and the inner pressing portion 22b, the outer pressing portion 22e, and the bolt insertion portion 22d are placed. Step 3 and elastic material 2
2 comes into direct contact with each other, or an adhesive is sandwiched between the two.

【００２０】現場で弾性材２２をボルト２４によって取
り付ける際には、肉薄のボルト挿通部２２ｄをカッター
等で切り取り、これにボルト２４を挿通する。この工事
は、寸法精度を要せず、非熟練工でも簡単に実施でき
る。When the elastic member 22 is mounted on the site with the bolt 24, the thin bolt insertion portion 22d is cut out with a cutter or the like, and the bolt 24 is inserted through the cut portion. This construction does not require dimensional accuracy, and can be easily performed by unskilled workers.

【００２１】内側押圧部２２ｂ上に第一の押圧材２７Ａ
を載置し、接触させる。これと共に、外側押圧部２２ｅ
上に第二の押圧材２７Ｂを載置し、接触させる。第一の
押圧材２７Ａ及び第二の押圧材２７Ｂの上に、押さえ板
２３を載せる。そして、ボルト２４を、貫通孔２３ａに
挿通させ、第一の押圧材２７Ａと第二の押圧材２７Ｂと
の間を通し、更にボルト挿通部２２ｄに挿通させ、ナッ
ト１２に嵌め合わせる。The first pressing member 27A is placed on the inner pressing portion 22b.
Is placed and brought into contact. At the same time, the outer pressing portion 22e
The second pressing member 27B is placed on the top and brought into contact. The pressing plate 23 is placed on the first pressing member 27A and the second pressing member 27B. Then, the bolt 24 is inserted through the through hole 23a, passes between the first pressing member 27A and the second pressing member 27B, and further is inserted through the bolt insertion portion 22d, and is fitted to the nut 12.

【００２２】この結果、ボルト２４はナット１２に対し
て固定される。ボルト２４の頭部にナット８を嵌めあわ
せ、ナット８を回転させて押さえ板２３を締めつける。
この結果、第一の押圧材２７Ａ及び第二の押圧材２７Ｂ
が押さえ板２３によって押圧され、内側押圧部２２ｂ及
び外側押圧部２２ｅが押圧材２７Ａ、２７Ｂによって押
圧され、弾性変形する。内側押圧部２２ｂ及び外側押圧
部２２ｅと段差部分３との間に圧力が加わり、漏水が防
止される。As a result, the bolt 24 is fixed to the nut 12. The nut 8 is fitted to the head of the bolt 24, and the nut 8 is rotated to tighten the holding plate 23.
As a result, the first pressing member 27A and the second pressing member 27B
Is pressed by the pressing plate 23, the inner pressing portion 22b and the outer pressing portion 22e are pressed by the pressing members 27A and 27B, and are elastically deformed. Pressure is applied between the inner pressing portion 22b and the outer pressing portion 22e and the stepped portion 3, thereby preventing water leakage.

【００２３】この際、主として止水効果を担うのは内側
押圧部２２ｂである。内側押圧部２２ｂの硬度を外側押
圧部２２ｅの硬度よりも小さくすると、内側押圧部２２
ｂの圧縮変形量が外側押圧部２２ｅの圧縮変形量よりも
大きくなり、内側での止水効果が一層向上する。また、
第一の押圧材２７Ａの横幅を第二の押圧材２７Ｂの横幅
よりも小さくすると、やはり内側押圧部２２ｂの圧縮変
形量が外側押圧部２２ｅの圧縮変形量よりも大きくな
り、内側での止水効果が一層向上する。この双方を同時
に実施することもできる。At this time, the inner pressing portion 22b mainly plays a water stopping effect. If the hardness of the inner pressing portion 22b is smaller than the hardness of the outer pressing portion 22e,
The amount of compressive deformation of b becomes larger than the amount of compressive deformation of the outer pressing portion 22e, and the water stopping effect on the inner side is further improved. Also,
When the width of the first pressing member 27A is smaller than the width of the second pressing member 27B, the amount of compressive deformation of the inner pressing portion 22b also becomes larger than the amount of compressive deformation of the outer pressing portion 22e. The effect is further improved. Both of these can be performed simultaneously.

【００２４】更に、図１０（ａ）に示すように、内側押
圧部２２ｂの底面に多数の小突起３０を設けると共に、
段差部分３の表面にブチル系粘着材を設けると、多数の
小突起３０がブチル系粘着材に食い込み、一層止水効果
が向上する。Further, as shown in FIG. 10A, a number of small projections 30 are provided on the bottom surface of the inner pressing portion 22b.
When the butyl-based adhesive is provided on the surface of the step portion 3, a large number of small projections 30 bite into the butyl-based adhesive, and the water stopping effect is further improved.

【００２５】ボルト２４、押さえ板２３、ナット８、１
２、アンカー５等の形状、寸法は、それぞれの機能を果
たす以上は、自由に変更できる。The bolt 24, the holding plate 23, the nuts 8, 1
2. The shape and dimensions of the anchor 5 and the like can be freely changed as long as they perform their respective functions.

【００２６】[0026]

【発明の効果】以上述べたように、本発明に係るコンク
リート構造物の継手構造によれば、弾性材にボルト挿通
孔を設ける必要がなく、押圧材にボルト挿通孔を設ける
必要がない。従って、各ボルト挿通孔を孔明けするため
の厳しい寸法管理を必要とせず、量産が容易である。し
かも、各ボルト挿通孔にボルトを挿通する煩雑な手作業
を必要としない。また、端部の段差部を成形するための
枠材は、転用可能であり、コスト的に低コストである。As described above, according to the joint structure for a concrete structure according to the present invention, there is no need to provide a bolt insertion hole in the elastic member, and it is not necessary to provide a bolt insertion hole in the pressing member. Therefore, strict dimensional control for drilling each bolt insertion hole is not required, and mass production is easy. In addition, a complicated manual operation for inserting a bolt into each bolt insertion hole is not required. In addition, the frame material for forming the step portion at the end can be diverted, and the cost is low.

【図面の簡単な説明】[Brief description of the drawings]

【図１】従来の継手構造を示す断面図である。FIG. 1 is a sectional view showing a conventional joint structure.

【図２】従来の継手構造における打設不良部分９を説明
するための断面図である。FIG. 2 is a cross-sectional view for explaining a poor casting portion 9 in a conventional joint structure.

【図３】（ａ）は、弾性材２を示す部分斜視図であり、
（ｂ）は、押圧材７を示す斜視図である。FIG. 3A is a partial perspective view showing an elastic member 2;
FIG. 2B is a perspective view showing the pressing member 7.

【図４】箱抜き型枠１５を取り付け、コンクリートを打
設した状態を示す断面図である。FIG. 4 is a cross-sectional view showing a state in which the boxless formwork 15 is attached and concrete is cast.

【図５】（ａ）は、コンクリート構造物１内にアンカー
５が埋設されている状態を示す断面図であり、（ｂ）
は、アンカー５を示す斜視図である。FIG. 5A is a cross-sectional view showing a state in which an anchor 5 is buried in a concrete structure 1, and FIG.
Is a perspective view showing an anchor 5. FIG.

【図６】箱抜き型枠１５を示す斜視図である。FIG. 6 is a perspective view showing a box-cutting formwork 15;

【図７】コンクリート構造物１の連結状態を模式的に示
す平面図である。FIG. 7 is a plan view schematically showing a connection state of the concrete structure 1. FIG.

【図８】コンクリート構造物１の周縁の状態を説明する
ための概略平面図である。FIG. 8 is a schematic plan view for explaining a state of a peripheral edge of the concrete structure 1.

【図９】本発明の実施例に係る継手構造を示す断面図で
ある。FIG. 9 is a cross-sectional view illustrating a joint structure according to an embodiment of the present invention.

【図１０】（ａ）は、弾性材２２を示す部分斜視図であ
り、（ｂ）は、第一の押圧材２７Ａ及び第二の押圧材２
７Ｂを示す部分斜視図であり、（ｃ）は、押さえ板２３
及びボルト２４を示す斜視図である。FIG. 10A is a partial perspective view showing an elastic member 22, and FIG. 10B is a diagram showing a first pressing member 27A and a second pressing member 2;
FIG. 7C is a partial perspective view showing 7B, and FIG.
FIG.

【図１１】本発明の実施例に係る継手構造を概略的に示
す平面図である。FIG. 11 is a plan view schematically showing a joint structure according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ コンクリート構造物 ２、２２ 弾性材 ３ 段差部分（端部） ４、２４ ボルト ５ アンカー ７ 押圧材 ８、１２ ナット ９ 打設不良部分 １０、１１ ボルト挿通孔 １５ 箱抜き型枠 ２２ｂ 内側押圧部 ２２ｄ ボルト挿通部 ２２ｅ 外側押圧部 ２３ 押さえ板 ２７Ａ 第一の押圧材 ２７Ｂ 第二の押圧材 ３０ 小突起 DESCRIPTION OF SYMBOLS 1 Concrete structure 2, 22 Elastic material 3 Step part (end part) 4, 24 bolts 5 Anchor 7 Pressing material 8, 12 Nut 9 Poor placement part 10, 11 Bolt insertion hole 15 Box-cutting formwork 22b Inner pressing part 22d Bolt insertion part 22e Outside pressing part 23 Pressing plate 27A First pressing material 27B Second pressing material 30 Small protrusion

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 一対の現場打ちコンクリート構造物の相
対向する端部間が帯状の弾性材で連結されている継手構
造であって、 前記弾性材の両側にそれぞれ内側押圧部、外側押圧部及
びボルト挿通部が形成され、前記ボルト挿通部が前記内
側押圧部及び前記外側押圧部に比べて肉薄であり、前記
端部上に前記内側押圧部、外側押圧部及びボルト挿通部
が載置されており、前記内側押圧部上に第一の押圧材が
接触しており、前記外側押圧部上に第二の押圧材が接触
しており、前記第一の押圧材及び第二の押圧材が押さえ
板によって押圧されており、前記第一の押圧材と前記第
二の押圧材との間にボルトが通されている、コンクリー
ト構造物の継手構造。1. A joint structure in which opposing ends of a pair of cast-in-place concrete structures are connected by a band-shaped elastic material, wherein an inner pressing portion, an outer pressing portion, and an outer pressing portion are provided on both sides of the elastic material, respectively. A bolt insertion portion is formed, the bolt insertion portion is thinner than the inner pressing portion and the outer pressing portion, and the inner pressing portion, the outer pressing portion, and the bolt inserting portion are placed on the end portion. A first pressing member is in contact with the inner pressing portion, a second pressing member is in contact with the outer pressing portion, and the first pressing member and the second pressing member are A joint structure for a concrete structure, wherein the joint is pressed by a plate, and a bolt is passed between the first pressing member and the second pressing member. 【請求項２】 前記端部が前記コンクリート構造物の肉
薄の段差部分であり、この段差部分に現場打ちコンクリ
ートが露出しており、ナットを備えたアンカーが前記段
差部分内に埋設されており、前記ボルトが前記ナットに
締結されている、請求項１記載のコンクリート構造物の
継手構造。2. The end portion is a thin step portion of the concrete structure, cast-in-place concrete is exposed at the step portion, and an anchor provided with a nut is embedded in the step portion, The joint structure for a concrete structure according to claim 1, wherein the bolt is fastened to the nut.
JP5155205A 1993-06-25 1993-06-25 Concrete structure joint structure Expired - Fee Related JP2721472B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5155205A JP2721472B2 (en) 1993-06-25 1993-06-25 Concrete structure joint structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5155205A JP2721472B2 (en) 1993-06-25 1993-06-25 Concrete structure joint structure

Publications (2)

Publication Number Publication Date
JPH0726613A JPH0726613A (en) 1995-01-27
JP2721472B2 true JP2721472B2 (en) 1998-03-04

Family

ID=15600806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5155205A Expired - Fee Related JP2721472B2 (en) 1993-06-25 1993-06-25 Concrete structure joint structure

Country Status (1)

Country Link
JP (1) JP2721472B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4916065B2 (en) * 2001-09-03 2012-04-11 大成建設株式会社 Structure of waterproof joint
JP2007198007A (en) * 2006-01-26 2007-08-09 Hayakawa Rubber Co Ltd Water cutoff structure for concrete product connection section, water cutoff method for concrete product connection section, and concrete product
JP6054253B2 (en) * 2013-06-04 2016-12-27 日本ヴィクトリック株式会社 Expansion joints for concrete structures
JP7351527B2 (en) * 2020-10-26 2023-09-27 早川ゴム株式会社 How to fix the water stop plate

Also Published As

Publication number Publication date
JPH0726613A (en) 1995-01-27

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