JPH032497A - Concrete segment fittings - Google Patents

Concrete segment fittings

Info

Publication number
JPH032497A
JPH032497A JP1136766A JP13676689A JPH032497A JP H032497 A JPH032497 A JP H032497A JP 1136766 A JP1136766 A JP 1136766A JP 13676689 A JP13676689 A JP 13676689A JP H032497 A JPH032497 A JP H032497A
Authority
JP
Japan
Prior art keywords
concrete
segment
joint
concrete segment
bolt
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
Application number
JP1136766A
Other languages
Japanese (ja)
Inventor
Yasusuke Onihashi
鬼橋 保祐
Masayuki Horiki
堀木 雅之
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP1136766A priority Critical patent/JPH032497A/en
Publication of JPH032497A publication Critical patent/JPH032497A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lining And Supports For Tunnels (AREA)
  • Joining Of Building Structures In Genera (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) 本発明は、コンクリートセグメントの継手金具の改良に
関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in joint fittings for concrete segments.

(従来の技術) 第14図に示すコンクリートセグメント(1)は円弧形
状であって、その複数が周方向に連結されて環状とされ
、それを軸方向に連結することでトンネルの内張等に用
いられる。
(Prior art) The concrete segment (1) shown in Fig. 14 has an arc shape, and a plurality of them are connected in the circumferential direction to form a ring shape, and by connecting them in the axial direction, it can be used for lining tunnels, etc. used.

上記コンクリートセグメント(1)は、コンクリート製
のセグメント本体(2)の周方向接合端部に埋入される
継手金具(3)を備えている。この継手金具(3)は、
第15図にも示すように。
The concrete segment (1) includes a joint fitting (3) embedded in the circumferential joint end of the concrete segment body (2). This fitting (3) is
As also shown in FIG.

単一の支持壁(23)と、この支持壁(23)から突出
する筒部(38)と、支持壁(23)に溶着されたアン
カー鉄筋(16)とで形成され、その筒部(38)の突
出端面が、コンクリートセグメント(1)の接合端面と
面一とされる。
It is formed by a single support wall (23), a cylindrical part (38) protruding from this support wall (23), and an anchor reinforcing bar (16) welded to the support wall (23), and the cylindrical part (38) ) is flush with the joint end surface of the concrete segment (1).

そして、相隣接するコンクリートセグメント(の両筒部
(38)の通孔(39)に連結用ボルト(4)が挿通さ
れ、セグメント本体(2)に形成されたボルトポケット
(19)において、その連結用ボルト(4)の両端にナ
ラ)(10)が螺合される。この両ナツト(lO)によ
り、支持壁(23)を介してセグメント本体(2)を挟
持することで両コンクリートセグメント(1)は連結さ
れる。
Then, the connecting bolts (4) are inserted into the through holes (39) of both cylindrical parts (38) of the adjacent concrete segments, and the connecting bolts (4) are inserted into the bolt pockets (19) formed in the segment body (2). An oak (10) is screwed onto both ends of the bolt (4). Both concrete segments (1) are connected by sandwiching the segment main body (2) via the support wall (23) by both nuts (lO).

尚、連結用ボルト(4)は、コンクリートセグメント(
1)の接合前には、セグメント本体(2)に形成された
ボルト退避孔(22)に挿通され。
In addition, the connecting bolt (4) is a concrete segment (
Before joining in step 1), the bolt is inserted into the bolt retraction hole (22) formed in the segment body (2).

接合後に軸方向に送られて筒部(38)に挿通される。After joining, it is sent in the axial direction and inserted into the cylindrical part (38).

(発明が解決しようとする課題) 第14図、第15図に示すものでは、継手金具(3)の
剛性が小さいため、コンクリートセグメント(1)に過
大な力が作用すると容易に変形してしまい、この継手金
具(3)の変形によってセグメント本体(2)にクラン
クが発生するという問題がある。
(Problems to be Solved by the Invention) In the structure shown in FIGS. 14 and 15, the rigidity of the joint fitting (3) is low, so it easily deforms when excessive force is applied to the concrete segment (1). There is a problem in that the deformation of the joint fitting (3) causes a crank in the segment body (2).

本発明は、上記問題を解決することを目的とする。The present invention aims to solve the above problems.

(課題を解決するための手段) 本発明の特徴とするところは、コンクリート製のセグメ
ント本体(2)の接合端部に配置されると共に、隣接す
るセグメントとの連結用ボルト(4)が挿通される継手
金具(3)であって、その連結用ボルト(4)の軸方向
に関して対向する一対の支持壁(5)(6)と1両支持
壁(5)(6)の連結部(7)と、前記連結用ボルト(
4)を両支持壁(5)(6)間で囲む筒部(8)とを備
え1両支持壁(5)(6)の間が前記セグメント本体(
2)内に埋入状とされる点にある。
(Means for Solving the Problems) The present invention is characterized by being arranged at the joint end of the concrete segment main body (2), and through which a bolt (4) for connecting with an adjacent segment is inserted. A joint fitting (3) comprising a pair of supporting walls (5) (6) facing each other in the axial direction of the connecting bolt (4) and a connecting portion (7) between the two supporting walls (5) and (6). and the connecting bolt (
4) between both support walls (5) and (6);
2) It is at the point where it is said to be embedded within.

(実施例) 以下1本発明の実施例を図面を参照して説明する。尚、
従来例と同様部分は同一符号で示す。
(Example) An example of the present invention will be described below with reference to the drawings. still,
Portions similar to those in the conventional example are designated by the same reference numerals.

第5図に示す円弧形のコンクリートセグメント(1)は
、従来例と同様にトンネルの内張に用いられるもので、
コンクリート製のセグメント本体(2)と0周方間接合
端部に配置された継手金具(3)とを備え、第1図に示
すように、隣接するコンクリートセグメント(1)と連
結用ボルト(4)で連結される。
The arc-shaped concrete segment (1) shown in Fig. 5 is used for tunnel lining as in the conventional example.
It is equipped with a concrete segment main body (2) and a joint fitting (3) arranged at the joint end between the 0 circumferences, and as shown in Fig. 1, the adjacent concrete segment (1) and the connecting bolt (4 ) are concatenated.

上記継手金具(3)は、連結用ボルト(4)の軸方向に
関して対向する一対の台形支持壁(5)(6)と。
The joint fitting (3) has a pair of trapezoidal support walls (5) and (6) facing each other in the axial direction of the connecting bolt (4).

両支持壁(5)(6)の連結部(7)と2両支持壁(5
)(6)に挿通される連結用ボルト(4)を両支持壁(
5)(6)間で囲む筒部(8)とを備える。
The connecting part (7) of both supporting walls (5) (6) and the connecting part (7) of both supporting walls (5)
) (6), connect the connecting bolt (4) to both supporting walls (
5) and a cylindrical portion (8) surrounded by (6).

本実施例では、支持壁(5)、支持壁(6)。In this embodiment, the support wall (5) and the support wall (6).

連結部(7)、筒部(8)は鋳造物で一体成形されてい
るが、それぞれ鋼材で別体で成形して溶接してもよい。
Although the connecting portion (7) and the cylindrical portion (8) are integrally formed by casting, they may be formed separately from steel and welded.

筒部(8)の通孔(9)は支持壁(5)、支持壁(6)
を貫通し9本実施例では3カ所形成されている。
The through hole (9) of the cylindrical part (8) is connected to the support wall (5) and the support wall (6).
In this embodiment, three holes are formed.

連結部(7)は、支持壁(5)、支持壁(,6)の第2
図中左右外側に沿う外連結部(11)と。
The connecting portion (7) is connected to the supporting wall (5) and the second supporting wall (,6).
and an external connecting portion (11) along the left and right outer sides in the figure.

内方の内連結部(12)とからなり、これら外連結部(
11)、内連結部(12)にはコンクリート流入用の開
口(13)が形成されている。
It consists of an inner connecting part (12) on the inside, and these outer connecting parts (
11), an opening (13) for concrete inflow is formed in the internal connection part (12).

また、継手金具(3)の外側にはアンカー用膨出部(1
4)が一体形成され、このアンカー用膨出部(14)に
形成されたネジ孔(15)にアンカー鉄筋(16)が螺
合される。
In addition, an anchor bulge (1) is provided on the outside of the joint (3).
4) is integrally formed, and an anchor reinforcing bar (16) is screwed into a screw hole (15) formed in this anchor bulge (14).

そして、セグメント本体(2)の形成のためにコンクリ
ートを打ち込む際に、継手金具(3)を周方向接合端部
に配置することで、支持壁(5)と支持壁(6)との間
に開口(13)からコンクリートが流入し9両支持壁(
5)(6)の間がセグメント本体(2)内に埋入状とさ
れる。尚、そのコンクリートの打ち込みの際にボルトポ
ケット(19)を形成する。
Then, when pouring concrete to form the segment body (2), by placing the joint fitting (3) at the circumferential joint end, the support wall (5) and the support wall (6) are placed between the support walls (5) and (6). Concrete flows in through the opening (13) and the 9-car support wall (
5) The space between (6) is embedded in the segment body (2). Incidentally, bolt pockets (19) are formed when pouring the concrete.

そして、第1図に示すように、相隣接するコンクリート
セグメント(1)の接合端部の一対の継手金具(3)に
、連結用ボルト(4)が挿通され。
Then, as shown in FIG. 1, a connecting bolt (4) is inserted into a pair of joint fittings (3) at the joining ends of adjacent concrete segments (1).

この連結用ボルト(4)の両端に螺合されたナツト(1
0)が一方の支持壁(6)にワッシャ(18)を介し支
持されることで3両コンクリートセグメント(1)は連
結される。尚9本実施例では。
Nuts (1) screwed onto both ends of this connecting bolt (4)
0) is supported by one supporting wall (6) via a washer (18), thereby connecting the three concrete segments (1). In addition, nine examples.

他方の支持壁(5)の端面がセグメント本体(2)の接
合端面と面一とされている。
The end surface of the other support wall (5) is flush with the joint end surface of the segment body (2).

これにより、連結用ボルト(4)に作用する力は継手金
具(3)、及び、支持壁(5)と支持壁(6)との間の
セグメント本体(2)とで支持される。
Thereby, the force acting on the connecting bolt (4) is supported by the joint fitting (3) and the segment body (2) between the support wall (5) and the support wall (6).

尚、コンクリートセグメント(1)の接合端面間には止
水シール(20)が介装される。
Note that a water stop seal (20) is interposed between the joint end faces of the concrete segment (1).

第6図乃至第9図は第2実施例に係り、上記実施例との
相違は、筒部(8)から連結用ボルト(4)を囲む延長
筒部(17)が接合端部に向けて一体的に延出され、こ
の延長筒部(17)の端面がセグメント本体(2)の接
合端面と面一とされている。他は上記実施例と同様で同
一符号で示す。
FIGS. 6 to 9 relate to the second embodiment, and the difference from the above embodiment is that the extension cylindrical part (17) surrounding the connecting bolt (4) from the cylindrical part (8) is directed toward the joint end. The extension tube portion (17) is integrally extended, and its end surface is flush with the joint end surface of the segment body (2). The rest is the same as in the above embodiment and is indicated by the same reference numerals.

尚、連結用ボルト(4)としては2頭部付のものを用い
、その頭部と一端に螺合されるナツトとでコンクリート
セグメント(1)を連結してもよい。
Incidentally, the connecting bolt (4) may be one with two heads, and the concrete segments (1) may be connected by the head and a nut screwed into one end.

第10図乃至第11図は第3実施例に係り、上記実施例
との相違は、ネジ孔(15)を計6カ所設け、アンカー
鉄筋(16)を6本取付可能にした点にある。他は上記
実施例と同様で同一符号で示す。
FIGS. 10 to 11 relate to a third embodiment, which differs from the above embodiment in that a total of six screw holes (15) are provided so that six anchor reinforcing bars (16) can be attached. The rest is the same as in the above embodiment and is indicated by the same reference numerals.

(発明の効果) 本発明によれば、継手金具は一対の支持壁を連結するこ
とで形成されているため、従来のように支持壁が単一で
あるものに比べ剛性が大きく、シかも1両支持壁の間の
セグメント本体によっても連結用ボルトに作用する力が
支持されるため、コンクリートセグメントに過大な力が
作用しても変形することはなく、セグメント本体にクラ
ックが発生することはない。
(Effects of the Invention) According to the present invention, since the joint fitting is formed by connecting a pair of supporting walls, it has greater rigidity than a conventional case with a single supporting wall. The force acting on the connecting bolt is also supported by the segment body between both supporting walls, so even if excessive force is applied to the concrete segment, it will not deform and cracks will not occur in the segment body. .

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

第1図は本発明の実施例に係るコンクリートセグメント
の要部の断面図、第2図は同継手金具の正面図、第3図
は同継手金具の底面図、第4図は第2図のA−A線断面
図、第5図は同コンクリートセグメントの全体斜視図、
第6図は第2実施例に係るコンクリートセグメントの要
部の断面図。 第7図は同継手金具の正面図、第8図は同継手金具の底
面図、第9図は第7図のB−B線断面図。 第10図は第3実施例に係る継手金具の正面図。 第11図は同側面図、第12図は開底面図、第13図は
第10図のC−C線断面図、第14図は従来例に係るコ
ンクリートセグメントの断面図、第15図は同継手金具
の斜視図である。 (1)・・・コンクリートセグメント (2)・・・セ
グメント本体、(3)・・・継手金具。 (4)・・・連結用ボルト、(5)  ・・・支持壁。 (6)・・・支持壁、(7)・・・連結部、(8)・・
・筒部、(9)・・・通孔。
Figure 1 is a sectional view of the main parts of a concrete segment according to an embodiment of the present invention, Figure 2 is a front view of the joint fitting, Figure 3 is a bottom view of the joint fitting, and Figure 4 is the same as in Figure 2. A cross-sectional view taken along the line A-A, and Figure 5 is an overall perspective view of the same concrete segment.
FIG. 6 is a sectional view of a main part of a concrete segment according to a second embodiment. 7 is a front view of the joint fitting, FIG. 8 is a bottom view of the joint fitting, and FIG. 9 is a sectional view taken along the line B-B in FIG. 7. FIG. 10 is a front view of a joint fitting according to a third embodiment. Fig. 11 is a side view of the same, Fig. 12 is an open bottom view, Fig. 13 is a sectional view taken along line C-C in Fig. 10, Fig. 14 is a sectional view of the concrete segment according to the conventional example, and Fig. 15 is the same. It is a perspective view of a joint fitting. (1) Concrete segment (2) Segment body, (3) Joint fittings. (4)...Connecting bolt, (5)...Supporting wall. (6)...Supporting wall, (7)...Connection part, (8)...
・Cylinder part, (9)...through hole.

Claims (1)

【特許請求の範囲】[Claims] (1)コンクリート製のセグメント本体(2)の接合端
部に配置されると共に、隣接するセグメントとの連結用
ボルト(4)が挿通される継手金具(3)であって、そ
の連結用ボルト(4)の軸方向に関して対向する一対の
支持壁(5)(6)と、両支持壁(5)(6)の連結部
(7)と、前記連結用ボルト(4)を両支持壁(5)(
6)間で囲む筒部(8)とを備え、両支持壁(5)(6
)の間が前記セグメント本体(2)内に埋入状とされる
ことを特徴とするコンクリートセグメントの継手金具。
(1) A joint fitting (3) that is placed at the joint end of a concrete segment body (2) and through which a connecting bolt (4) for connecting an adjacent segment is inserted; 4), a pair of supporting walls (5) (6) facing each other in the axial direction, a connecting portion (7) between both supporting walls (5), (6), and the connecting bolt (4) connected to both supporting walls (5). )(
6) and a cylindrical part (8) surrounding the supporting walls (5) (6).
) is embedded in the segment body (2).
JP1136766A 1989-05-29 1989-05-29 Concrete segment fittings Pending JPH032497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1136766A JPH032497A (en) 1989-05-29 1989-05-29 Concrete segment fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1136766A JPH032497A (en) 1989-05-29 1989-05-29 Concrete segment fittings

Publications (1)

Publication Number Publication Date
JPH032497A true JPH032497A (en) 1991-01-08

Family

ID=15183012

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1136766A Pending JPH032497A (en) 1989-05-29 1989-05-29 Concrete segment fittings

Country Status (1)

Country Link
JP (1) JPH032497A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254897B2 (en) * 1983-02-22 1990-11-22 Ebara Mfg

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0254897B2 (en) * 1983-02-22 1990-11-22 Ebara Mfg

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