JPS63219798A - Joining structure of concrete member - Google Patents
Joining structure of concrete memberInfo
- Publication number
- JPS63219798A JPS63219798A JP62027966A JP2796687A JPS63219798A JP S63219798 A JPS63219798 A JP S63219798A JP 62027966 A JP62027966 A JP 62027966A JP 2796687 A JP2796687 A JP 2796687A JP S63219798 A JPS63219798 A JP S63219798A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- concrete
- concrete member
- concrete members
- tightened
- 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.)
- Granted
Links
- 238000005304 joining Methods 0.000 title claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000009415 formwork Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、シールド工法において使用されるセグメン
ト等のコンクリート部材の接合構造に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a joining structure for concrete members such as segments used in the shield construction method.
従来この種の接合構造では、コンクリート部材の接合端
面に埋設される接合用連結金具が、連結ボルトによる締
付は接合時に変形してしまうことがある。Conventionally, in this type of joint structure, the joining fittings buried in the joining end faces of concrete members may be deformed during joining when tightened with connecting bolts.
またこの変形を防ぐことができる連結具を使用すると、
変形もなく強固に接合できることから、接合端面におけ
る連結ボルト締付は部近傍の厚み方向端部材のコンクリ
ート同士が強く当接することにより、その部分が破損し
てしまうことがあった。Also, if you use a connector that can prevent this deformation,
Since the joint can be firmly joined without deformation, when the connecting bolt is tightened at the joint end face, the concrete of the end members in the thickness direction in the vicinity of the joint strongly abuts against each other, which may cause damage to that part.
この発明は前述した事情に鑑み創案されたもので、その
目的は連結ボルトによる締付は時に接合部材が変形して
しまうことなく、また接合端面の厚み方向上下端部材が
破損してしまうこともなく、簡単な構造で強固に接合さ
せることのできるコンクリート部材の接合構造を提供す
ることにある。This invention was devised in view of the above-mentioned circumstances, and its purpose is to prevent the joint members from deforming when tightening with connecting bolts, and to prevent damage to the upper and lower end members in the thickness direction of the joint end faces. To provide a joining structure for concrete members that can be firmly joined with a simple structure.
この発明によればコンクリート部材の接合端部に形成さ
れている接合部に、接合作業用凹部から接合端面へ貫通
してコンクリート部材に形成されている連結ボルト用の
貫通孔と、接合作業用凹部のほぼ深さ方向全長にわたり
設けられており、連結ボルトが貫通して締付けられる締
付はプレートとを備える。According to this invention, a through hole for a connecting bolt, which is formed in the concrete member and penetrates from the joint work recess to the joint end face, is provided in the joint formed at the joint end of the concrete member, and the joint work recess is formed in the joint part formed at the joint end of the concrete member. It is provided over almost the entire length in the depth direction, and includes a tightening plate through which the connecting bolt is tightened.
そして接合端面同士を当接させたコンクリート部材を、
締付はプレートを介して締付けることで、両コンクリー
ト部材の接合部が変形してしまうことを防止する。また
各々のコンクリート部材の補強板の接合端面への露出部
同士を当接させることで、連結ボルト締付は部近傍にお
ける接合端面の厚み方向端部が破損してしまうことを防
止するものである。Then, the concrete members whose joint end surfaces are in contact with each other,
By tightening through the plate, the joint between both concrete members is prevented from deforming. In addition, by bringing the exposed parts of the reinforcing plates of each concrete member into contact with each other, the connecting bolts can be tightened to prevent damage to the thickness direction edges of the joint end faces in the vicinity of the reinforcement plates. .
以下この発明を図示する実施例によって説明する。 The present invention will be explained below with reference to illustrated embodiments.
コンクリート部材の接合構造１は、接合すべき一対のコ
ンクリート部材２．２′の接合端部に形成されている再
接合部３，３′を連結ボルト４によって締付けて、両コ
ンクリート部材２゜２′を接合してなっている。（第１
図参照）そして第１発明に係る接合部である一方の接合
部３は、接合作業用凹部５から接合端面２ａへ貫通して
コンクリート部材２に形成されている連結ボルト４用の
貫通孔６と、接合作業用凹部５のほぼ深さ方向全長にわ
たり設けられており、連結ボルト４が貫通して締付けら
れる締付はプレート７とを有してなっている。なおこの
実施例では、連結ボルト４が上下２個所位置に設けられ
るように構成されている。The concrete member joining structure 1 is constructed by tightening the rejoining portions 3, 3' formed at the joint ends of a pair of concrete members 2.2' to be joined with connecting bolts 4, and then joining both concrete members 2.2'. It is made by joining. (1st
(See figure) One of the joint parts 3, which is the joint part according to the first invention, has a through hole 6 for a connecting bolt 4 formed in the concrete member 2, penetrating from the joint work recess 5 to the joint end surface 2a. , is provided over almost the entire length in the depth direction of the recess 5 for joining work, and has a tightening plate 7 through which the connecting bolt 4 is passed through and tightened. In this embodiment, the connecting bolts 4 are provided at two positions, upper and lower.
また他方の接合部３゛は、貫通孔６を貫通した連結ボル
ト４が螺合するインサート金具８を埋設してなっている
。The other joint portion 3' has an embedded metal insert 8 into which a connecting bolt 4 passing through a through hole 6 is screwed.
そして再接合部３，３′における厚み方向端部には、コ
ンクリート部材２．２′の接合端面２ａおよび表面２ｂ
と同一面となるように露出しており、各々のコンクリー
ト部材接合端面２ａへの露出部同士が当接する補強板９
が設けられている。この実施例では固定用としてスタン
ドボルト９ａが設けられている。At the end portions in the thickness direction of the rejoining portions 3 and 3', there are a joining end surface 2a and a surface 2b of the concrete member 2.2'.
The reinforcing plate 9 is exposed so as to be flush with the concrete member joint end surface 2a, and the exposed portions of the concrete member joint end surfaces 2a abut each other.
is provided. In this embodiment, a stand bolt 9a is provided for fixing.
なおこのコンクリート部材２．２′を製造するには、第
３図に示すような型枠装置１０で行う。ここでの補強板
９の取付けは、第４図に示すように取付はネジ１１を補
強板９へ螺合させて、第５図に示すように型枠板１０ａ
に取付ける。なお第５図における符号１２は、中型枠で
ある。In order to manufacture this concrete member 2.2', a formwork apparatus 10 as shown in FIG. 3 is used. The reinforcing plate 9 is installed by screwing the screws 11 into the reinforcing plate 9 as shown in FIG. 4, and then as shown in FIG.
Attach to. Note that the reference numeral 12 in FIG. 5 is a medium form frame.
そしてこの型枠装置１０によって第６図に示すようなコ
ンクリート部材２．２′が製造される。A concrete member 2.2' as shown in FIG. 6 is manufactured by this formwork apparatus 10.
なおこのコンクリート部材２．２′の製造に際しては、
接合作業用凹部５がコンクリート部材２の接合端面２ａ
より後退して設けられているので、接合部３を形成する
接合端面に補強用として埋設する主筋を接合部用として
切らずに埋設することが可能である。そのためコンクリ
ート部材の耐力を高めることができる。In addition, when manufacturing this concrete member 2.2',
The recess 5 for joining work is the joining end surface 2a of the concrete member 2.
Since it is provided further back, it is possible to bury the main reinforcing reinforcement in the joint end surface forming the joint part 3 without cutting it for the joint part. Therefore, the proof strength of the concrete member can be increased.
また接合作業用凹部５が接合端面より後退して設けられ
ていることは、継手金具が接合端面に露出していないの
で、継手金具に規制されるようなことがなくシール溝を
接合端面へ自由に設けることが可能となる。そのため接
合部３における止水効果を高めることができる。Furthermore, the fact that the recess 5 for joining work is set back from the joint end surface means that the joint metal fittings are not exposed on the joint end surface, so the seal groove can be moved freely toward the joint end surface without being restricted by the joint metal fittings. It becomes possible to provide the Therefore, the water stopping effect in the joint portion 3 can be enhanced.
さらに継手金具が接合端面に露出していないことは、継
手金具とコンクリートとの接触個所に形成されてしまう
間隙を通過してしまうように、接合作業用凹部内へ漏水
するようなことがないコンクリート材を製造できる。Furthermore, the fact that the joint fittings are not exposed on the joint end surface means that water will not leak into the joint work recess, as water will pass through the gap that is formed at the contact point between the joint fittings and the concrete. material can be manufactured.
このような構成からなるコンクリート部材の接合構造１
によって両コンクリート部材２．２′の連結を行うには
、まず両コンクリート部材２゜２′の接合端面２ａ、２
ａ’を当接させる。そしてこの時に各々のコンクリート
部材２，２′の接合端面２ａ、２ａ”に露出している補
強板９の露出同士が当接する。Joint structure 1 for concrete members having such a configuration
In order to connect both concrete members 2.2' by
Bring a' into contact. At this time, the exposed reinforcing plates 9 exposed at the joining end faces 2a, 2a'' of the respective concrete members 2, 2' come into contact with each other.
次に接合作業用凹部５を利用して、連結ボルト４を一方
の接合部３の貫通孔６内へ通し、他方の接合部３′のイ
ンサート金具８に螺合させて締付ける。Next, using the joining work recess 5, the connecting bolt 4 is passed through the through hole 6 of one joint part 3, and is screwed into the insert fitting 8 of the other joint part 3' and tightened.
なおこの連結ボルト４の螺合作業に際しては、第２図に
示すように一対のコンクリート部材２゜２′の接合作業
前において接合作業用凹部５のボルト挿入部５ａ内に設
けられている両ネジボルト４ａを再接合端面当面時に引
き出す。When screwing together the connecting bolts 4, as shown in FIG. 4a is pulled out when facing the rejoined end.
そして引き出した両ネジボルト４ａを貫通孔６に貫通さ
せると共に、両ネジボルト４ａの一方ネジ部に蓋状のか
ぶせナラ）４ｂを螺合して装着する。Then, both threaded bolts 4a that have been pulled out are passed through the through holes 6, and a cover-like cover 4b is screwed onto one threaded portion of both threaded bolts 4a.
次に装着したかぶせナフト４ｂを利用してボルト４ａを
回転させることによって、他方のネジ部を相手方のイン
サート金具８に螺合させる。Next, by rotating the bolt 4a using the attached cover napht 4b, the other threaded portion is screwed into the mating insert fitting 8.
この時に両端部に両ネジが切っであるため、空転するこ
となしに接続できる。そして回転し後ったのち、かぶせ
ナツト４ｂを外して座金４Ｃとす７ト４ｄで締付ける。At this time, since both ends are threaded on both sides, the connection can be made without idling. After it has rotated, remove the cover nut 4b and tighten it with a washer 4C and a tooth 4d.
このことで両コンクリート部材２，２′が連結接合され
ることとなる。As a result, both concrete members 2, 2' are connected and joined.
なお補強板９は、第７図に示すようにシール部１３を形
成して、コンクリート部材２．２′のシール部に設けて
もよい。Note that the reinforcing plate 9 may be provided at the sealing portion of the concrete member 2.2' by forming a sealing portion 13 as shown in FIG.
第８図は、この発明の第二発明に係る接合部を使用した
接合構造を示すものである。FIG. 8 shows a joint structure using a joint according to the second aspect of the present invention.
ここでの両コンクリート部材２，２′の両接合部１４は
、前述した第１発明に係る一方の接合部と同様に構成さ
れている。そして再締付はプレート７を連結ボルト４に
よって締付けることで、両コンクリート部材２．２′の
接合が行われる。Both joint parts 14 of both concrete members 2, 2' here are constructed in the same manner as one joint part according to the first invention described above. Then, retightening is performed by tightening the plate 7 with the connecting bolt 4, thereby joining both concrete members 2.2'.
このようにするとインサート金具８が埋設されている別
態様のコンクリート部材２，２′を製作する必要がなく
、同一のコンクリート部材を製作するだけで良いので、
安価な接合構造を提供できる。In this way, there is no need to manufacture separate concrete members 2, 2' in which the insert fittings 8 are buried, and it is sufficient to manufacture the same concrete member.
An inexpensive joining structure can be provided.
なお連結ポルト４での締付は作業は、前述した第１図の
実施例と同様にボルト挿入部内に設けられている両ネジ
ボルト４ａを引き出し、両端部ネジ部に座金４０および
ナラ）４ｄを螺合して締付けることで行われる。To tighten the connecting port 4, pull out the double-threaded bolt 4a provided in the bolt insertion part and screw the washers 40 and nuts 4d into the threaded parts at both ends, as in the embodiment shown in FIG. 1 described above. This is done by fitting and tightening.
第９図および第１０図は、この発明の第１および第２発
明に係る接合部３．３’、１４の連結ボルト４を１個所
位置のみに設けたものである。9 and 10 show the connecting bolts 4 of the joints 3, 3', 14 according to the first and second aspects of the present invention provided at only one position.
このように連結ポルト４を１本から３本捏度の複数本設
けてもよい。In this way, a plurality of connecting ports 4 may be provided, ranging from one to three connecting ports.
なお第１および第２図の締付はプレートは、アンカー筋
（図示せず）によってコンクリート部材に固定してもよ
い。このようにすれば接合部をより強固にすることがで
きる。In addition, the fastening plates shown in FIGS. 1 and 2 may be fixed to the concrete member by anchor reinforcements (not shown). In this way, the joint can be made stronger.
この発明は、コンクリート部材の接合端部に形成されて
いる接合部を、接合作業用凹部から接合端面へ貫通して
コンクリート部材に形成されている連結ボルト用の貫通
孔と、接合作業用凹部のほぼ深さ方向全長にわたり設け
られておリ、連結ボルトが貫通して締付けられる締付は
プレートとを備えたものにしたことを特徴とする。This invention provides a through hole for a connecting bolt formed in a concrete member that passes through a joint formed at a joint end of a concrete member from a joint work recess to a joint end surface, and It is characterized in that it is provided over almost the entire length in the depth direction, and is provided with a tightening plate through which a connecting bolt passes through and is tightened.
そのため接合端面同士を当接させたコンクリート部材を
、締付はプレートを介して締付けることができ、両コン
クリート部の接合部が変形してしまうことを防止して強
固に接合させることができる。Therefore, the concrete members whose joint end surfaces are in contact with each other can be tightened through the plate, and it is possible to prevent the joint between the two concrete parts from deforming and to firmly join them.
またこの発明は、再接合部における厚み方向端部に補強
板を設けたことも特徴としているものである。そして各
々のコンクリート部材の補強板の接合端面へ露出部同士
を当接させることで、強固に接合しても連結ボルト締付
は部近傍における破壊され易い接合端面の厚み方向端部
が破損してしまうことを防止することができる。The present invention is also characterized in that a reinforcing plate is provided at the end in the thickness direction of the rejoining portion. By bringing the exposed parts into contact with the joint end faces of the reinforcing plates of each concrete member, even if the joint is firmly joined, the connecting bolts cannot be tightened without damaging the ends in the thickness direction of the joint end faces that are easily destroyed near the parts. It is possible to prevent it from being put away.
このように接合端面同士を当接させたコンクリート部材
を締付はプレートを介して締付けることと、補強板を設
けたこととの相互作用により、破損の心配がなく強固に
連結することのできる接合構造を提供できる。In this way, the concrete members whose joined end surfaces are in contact with each other are tightened through the plate, and the interaction between the reinforcement plate and the provision of the reinforcing plate allows for a strong connection without fear of damage. It can provide structure.
さらに構造が簡単であるために、複雑な加工等を必要と
せず使用する材料も少ないので、あらる継手部に比し安
価で経済的な接合構造を提供できる。Furthermore, since the structure is simple, no complicated processing is required, and less material is used, it is possible to provide a joint structure that is cheaper and more economical than conventional joints.
第１図はこの発明の第１発明に係る接合構造を示す断面
図、第２図は連結ボルトの締付は作業状態を示す断面図
、第３図はこの発明に係るコンクリート部材を製作する
型枠装置を示す斜視図、第４図は補強板を示す斜視図、
第５図は補強板を取付けた状態を示す型枠装置の断面図
、第６図はこの発明に係るコンクリート部材を示す斜視
図、第７図は補強板の別態様を示す断面図、第８図はこ
の発明の第２発明に係る接合構造を示す断面図、第９図
および第１０図は第１および第２図の接合構造の別態様
を示す断面図である。
１・・・・・・接合構造、
２．２′・・・・・・コンクリート部材、２ａ・・・・
・・接合端面、２ｂ・・・・・・表面、３．３′・・・
・・・接合部、４・・・・・・連結ボルト、５・・・・
・・接合作業用凹部、６・・・・・・貫通孔、７・・・
・・・締付はプレート、８・・・・・・インサート金具
、９・・・・・・補強板、９ａ・・・・・・スタンドボ
ルト、１０・・・・・・型枠装置、１０ａ・・・・・・
型枠板、１１・・・・・・取付はネジ、１２・・・・・
・中型枠、１３・・・・・・シール部、１４・・・・・
・接合部。Fig. 1 is a cross-sectional view showing the joint structure according to the first invention, Fig. 2 is a cross-sectional view showing the working state of tightening the connecting bolt, and Fig. 3 is the mold for manufacturing the concrete member according to the invention. A perspective view showing the frame device, FIG. 4 is a perspective view showing the reinforcing plate,
FIG. 5 is a cross-sectional view of the formwork device with the reinforcing plate attached, FIG. 6 is a perspective view showing a concrete member according to the present invention, FIG. 7 is a cross-sectional view showing another embodiment of the reinforcing plate, and FIG. The figure is a cross-sectional view showing a joint structure according to a second aspect of the present invention, and FIGS. 9 and 10 are cross-sectional views showing another embodiment of the joint structure shown in FIGS. 1 and 2. 1...Joint structure, 2.2'...Concrete member, 2a...
...Joining end surface, 2b...Surface, 3.3'...
...Joint part, 4...Connection bolt, 5...
... recess for joining work, 6 ... through hole, 7 ...
...Tighten plate, 8...Insert fitting, 9...Reinforcement plate, 9a...Stand bolt, 10...Formwork device, 10a・・・・・・
Formwork board, 11... Attachment is with screws, 12...
・Medium frame, 13... Seal part, 14...
・Joint part.
Claims (2)
形成されている両接合部を連結ボルトによって締付けて
前記両コンクリート部材を接合してなる接合構造であり
、 前記一方の接合部は、接合作業用凹部から 接合端面へ貫通してコンクリート部材に形成されている
前記連結ボルト用の貫通孔と、前記作業用凹部のほぼ深
さ方向全長にわたり設けられており、前記連結ボルトが
貫通して締付けられる締付けプレートとを有してなると
共に、前記他方の接合部は、前記貫通孔を貫通した連結
ボルトが螺合するインサート金具を埋設してなり、 前記両接合部における厚み方向端部には、 コンクリート部材の接合端面および表面に同一面となる
ように露出しており、各々のコンクリート部材接合端面
への露出部同士が当接する補強板が設けられていること
を特徴とするコンクリート部材の接合構造。(1) A joint structure in which both joints formed at joint ends of a pair of concrete members to be joined are tightened by connecting bolts to join the two concrete members, and the one joint is a joint. A through hole for the connecting bolt is formed in the concrete member and penetrates from the working recess to the joint end surface, and is provided over almost the entire length of the working recess in the depth direction, so that the connecting bolt penetrates and is tightened. and a tightening plate that is connected to the through hole, and the other joint part has an insert fitting embedded therein into which a connecting bolt passing through the through hole is screwed, and the ends in the thickness direction of both the joint parts have: A joint structure for concrete members, characterized in that a reinforcing plate is provided, which is exposed flush with the joint end faces and surfaces of the concrete members, and the exposed parts of the joint end faces of each concrete member come into contact with each other. .
に形成されている両接合部を連結ボルトによって締付け
て前記両コンクリート部材を接合してなる接合構造であ
り、 前記両接合部は、接合作業用凹部から接合 端面へ貫通してコンクリート部材に形成されているコン
クリート部材に形成されている前記連結ボルト用の貫通
孔と、前記接合作業用凹部の略深さ全長にわたり設けら
れており、前記連結ボルトが貫通して締付けられる締付
けプレートとを有してなると共に、 前記両接合部における厚み方向端部には、 コンクリート部材の接合端面および表面に同一面となる
ように露出しており、各々のコンクリート部材接合端面
への露出部同士が当接する補強板が設けられていること
を特徴とするコンクリート部材の接合構造。(2) A joint structure in which both joint parts formed at joint end faces of a pair of concrete members to be joined are tightened with connecting bolts to join the two concrete members, and both the joint parts are subjected to joining work. A through hole for the connecting bolt formed in the concrete member is formed in the concrete member so as to penetrate from the recess for the joining operation to the joint end surface, and is provided over approximately the entire depth of the recess for the joining operation, and and a tightening plate through which a bolt passes through and is tightened, and the ends in the thickness direction of both the joint parts are exposed so as to be flush with the joint end face and surface of the concrete member, and each A joint structure for concrete members, characterized in that a reinforcing plate is provided whose exposed portions on the joint end surfaces of the concrete members abut against each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61-253354 | 1986-10-24 | ||
| JP25335486 | 1986-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63219798A true JPS63219798A (en) | 1988-09-13 |
| JPH0791950B2 JPH0791950B2 (en) | 1995-10-09 |
Family
ID=17250166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62027966A Expired - Lifetime JPH0791950B2 (en) | 1986-10-24 | 1987-02-09 | Joint structure of concrete members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0791950B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02132294A (en) * | 1988-11-14 | 1990-05-21 | Junichi Tsuzuki | Joint structure for concrete segment of large bore |
| JPH02161098A (en) * | 1988-12-14 | 1990-06-20 | Kajima Corp | Joint section structure of segment |
| JPH03202600A (en) * | 1989-12-28 | 1991-09-04 | Junichi Tsuzuki | Joining device for concrete segment |
| JPH0731999U (en) * | 1994-07-28 | 1995-06-16 | 鹿島建設株式会社 | Through bolt for connecting segments |
| JP2010031919A (en) * | 2008-07-25 | 2010-02-12 | Taisei Corp | Screw fastening mechanism |
| JP2020016277A (en) * | 2018-07-24 | 2020-01-30 | 株式会社シンニッタン | Method for connecting aluminum-based beam material and iron-based pipe material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752238U (en) * | 1981-08-11 | 1982-03-26 | ||
| JPS60497U (en) * | 1983-06-14 | 1985-01-05 | フジミ工研株式会社 | RC segment with reinforcing steel on the joint surface |
| JPS6121299A (en) * | 1984-07-11 | 1986-01-29 | 都築 純一 | Concrete segment |
-
1987
- 1987-02-09 JP JP62027966A patent/JPH0791950B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752238U (en) * | 1981-08-11 | 1982-03-26 | ||
| JPS60497U (en) * | 1983-06-14 | 1985-01-05 | フジミ工研株式会社 | RC segment with reinforcing steel on the joint surface |
| JPS6121299A (en) * | 1984-07-11 | 1986-01-29 | 都築 純一 | Concrete segment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02132294A (en) * | 1988-11-14 | 1990-05-21 | Junichi Tsuzuki | Joint structure for concrete segment of large bore |
| JPH02161098A (en) * | 1988-12-14 | 1990-06-20 | Kajima Corp | Joint section structure of segment |
| JPH03202600A (en) * | 1989-12-28 | 1991-09-04 | Junichi Tsuzuki | Joining device for concrete segment |
| JPH0731999U (en) * | 1994-07-28 | 1995-06-16 | 鹿島建設株式会社 | Through bolt for connecting segments |
| JP2010031919A (en) * | 2008-07-25 | 2010-02-12 | Taisei Corp | Screw fastening mechanism |
| JP2020016277A (en) * | 2018-07-24 | 2020-01-30 | 株式会社シンニッタン | Method for connecting aluminum-based beam material and iron-based pipe material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0791950B2 (en) | 1995-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |