JPH0754078B2 - Joint structure for joining concrete members - Google Patents
Joint structure for joining concrete membersInfo
- Publication number
- JPH0754078B2 JPH0754078B2 JP63246795A JP24679588A JPH0754078B2 JP H0754078 B2 JPH0754078 B2 JP H0754078B2 JP 63246795 A JP63246795 A JP 63246795A JP 24679588 A JP24679588 A JP 24679588A JP H0754078 B2 JPH0754078 B2 JP H0754078B2
- Authority
- JP
- Japan
- Prior art keywords
- joining
- tightening
- joint
- tightening plate
- concrete members
- 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 - Lifetime
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、トンネル覆工用コンクリートセグメント等
の一対のコンクリート部材を接合するために、各コンク
リート部材の接合端面部に埋設されている継手金具を使
用する継手部構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a joint fitting embedded in a joint end face portion of each concrete member for joining a pair of concrete members such as a concrete segment for tunnel lining. The present invention relates to a joint structure using
従来この種の継手金具としては、コンクリート部材表面
に開口する接合ボルト係止用Ｕ字状切欠部は形成され、
切欠を利用しての接合用ボルトの取付ける構造のものが
ある。ところで締付けプレートの切欠部の開口部が下方
に向いた状態でコンクリート部材を接合した場合は、接
合用ボルトの締付けによる摩擦力が締付け力の緩みによ
って弱くなった時に、切欠部の下向き開口部から接合用
ボルトが落下する恐れがある。Conventionally, as a joint fitting of this type, a U-shaped notch for locking a joining bolt that is opened on the surface of a concrete member is formed,
There is a structure in which a joining bolt is attached using a notch. By the way, when concrete members are joined with the notch opening of the tightening plate facing downward, when the frictional force due to the tightening of the joining bolt becomes weak due to the loosening of the tightening force, The joining bolt may fall.
出願人は以上の問題点を解決するため、締付けプレート
に係止小片を設けて接合用ボルトの落下を防止する構造
を実開昭63-76112号公報において提案しているが、組立
に際して係止小片が邪魔になる恐れがある。In order to solve the above problems, the applicant has proposed a structure in which a fastening piece is provided on the tightening plate to prevent the joining bolt from falling, but in the Japanese Utility Model Laid-Open No. 63-76112, it is locked during assembly. Small pieces can get in the way.
そこで出願には先に前記考案を発展させて組立，接合作
業を容易とするとともに大型座金を用い、複数本のボル
トを使用する場合にも適用しうる構造を開発した。（昭
和63年９月22日特許出願）ところで先の発明は締付けプ
レート相互間に位置するボルト頭部を回転させる構造で
あり、ロボットによる締付け作業には使用が困難であ
る。そこでこの発明は締付けプレートを突合せる構造と
したものである。Therefore, in the present application, the invention was first developed to develop a structure that facilitates the assembly and joining work and uses a large washer and can be applied even when a plurality of bolts are used. (Patent application on September 22, 1988) By the way, the previous invention has a structure in which the bolt heads located between the tightening plates are rotated, and it is difficult to use for tightening work by a robot. Therefore, the present invention has a structure in which the tightening plates are butted.
この発明は、コンクリート部材の接合端面に配置してあ
り、コンクリート部材内面に開口するＵ字状切欠部が形
成されている締付けプレートと、前記締付けプレートの
内側に形成されている接合作業用空間部とを有してな
り、 前記締付けプレートと接合ボルトを挿通する大型座金そ
れら表面の凹凸状部を係合させて、接合ボルトによって
突合せた締付けプレート相互を締結してなることを特徴
とするコンクリート部材接合用継手部構造である。The present invention provides a tightening plate which is arranged on a joint end surface of a concrete member and has a U-shaped cutout opening to the inner surface of the concrete member, and a joint work space formed inside the tightening plate. And a large washer through which the joining bolt is inserted, the convex and concave portions of their surfaces are engaged with each other, and the fastening plates abutted by the joining bolt are fastened together. It is a joint part structure for joining.
第１図，第２図において継手金具１は、セグメント等の
コンクリート部材Ｃの接合端面に位置する締付けプレー
ト２にはコンクリート部材の内面に開口するＵ字状切欠
部３が形成されている。また締付けプレート2,両側壁4,
後壁５で略口字状に形成されている接合作業用空間部６
を形成している。1 and 2, the joint fitting 1 has a U-shaped cutout 3 that is open to the inner surface of the concrete member in the tightening plate 2 located on the joint end face of the concrete member C such as a segment. Also tighten plate 2, both side walls 4,
Space portion 6 for joining work formed in a substantially square shape on the rear wall 5
Is formed.
そして締付けプレート２には、空間部６内へ突出する凸
部７が形成されている。Further, the tightening plate 2 is formed with a convex portion 7 that projects into the space portion 6.
また継手金具１には、アンカー筋8,8が設けられてい
る。Further, the joint metal fitting 1 is provided with anchor bars 8,8.
継手金具１によって両コンクリート部材を接合するに
は、まず上下２本の接合用ボルト９を大型座金10の切欠
部または透孔に挿通しておき、締付けプレート２の切欠
部３に接合用ボルト９を嵌合する。また接合すべき締付
けプレート2,2を突合せる。In order to join both concrete members with the joint fitting 1, first two upper and lower joining bolts 9 are inserted into the notches or through holes of the large washer 10 and then the joining bolts 9 are joined to the notches 3 of the tightening plate 2. Mating. Further, the tightening plates 2, 2 to be joined are butted.
次いで締付けプレート２の凸部７と大型座金10の外面側
に形成した凹部11を係合させる。接合用ボルト９は、両
端部に逆ネジのネジ部が形成され、各ネジ部にナット12
が螺合してある。そして両ナット12,12の間隔を広くし
た状態で、両ナット12,12が両継手金具１の空間部６内
となるように切欠部３へ嵌入する。Next, the convex portion 7 of the tightening plate 2 and the concave portion 11 formed on the outer surface side of the large washer 10 are engaged. The bolts 9 for joining have threaded portions of reverse threads formed on both ends, and nuts 12 are provided on each threaded portion.
Are screwed together. Then, the nuts 12, 12 are fitted into the notches 3 so as to be in the space 6 of the joint fittings 1 in a state where the distance between the nuts 12, 12 is wide.
次に接合用ボルト９に螺合したナット12を回転させて、
両ナット12,12間の間隔を狭めて両コンクリート部材の
締付けプレート2,2を挟持して締付けることで、両コン
クリート部材が接合される。Next, rotate the nut 12 screwed to the joining bolt 9,
The concrete members are joined by narrowing the gap between the nuts 12 and 12 and sandwiching and tightening the clamping plates 2 of the concrete members.
第３図、乃至第５図は他の実施例を示したもので切欠部
３を中央とその両側の３ケ所に設けた３本の接合用ボル
ト９を使用するようにしたものであり、第６図，第７図
は大型座金10の変形例と示したものである。FIGS. 3 to 5 show another embodiment, in which three joining bolts 9 provided with the cutout portion 3 at the center and at three places on both sides thereof are used. 6 and 7 show a modification of the large washer 10.
そして以上の実施例は何れもセグメントのピース間の接
合に使用するものである。All of the above embodiments are used for joining the pieces of the segment.
第８図は１本の接合用ボルトを使用する場合であり、セ
グメントのリング間の接合に使用される。FIG. 8 shows the case of using one joining bolt, which is used for joining between the rings of the segments.
第９図は凹凸の位置関係を逆にした場合を示している。
また大型座金10はＵ形状等種々に変形される。FIG. 9 shows a case where the positional relationship of the concavities and convexities is reversed.
Further, the large washer 10 is deformed in various ways such as a U shape.
この発明は以上の構成からなり、Ｕ字状切欠部を有する
締付けプレートの内側に重なる大型座金とを相互の凹凸
部を係合させることによって座金および接合用ボルトの
落下を防止できる。また、この構造によれば締付けプレ
ート内側の空間部を小さくでき、しかも作業性がよい。The present invention is configured as described above, and it is possible to prevent the washer and the joining bolt from falling by engaging the large washer overlapping the inner side of the tightening plate having the U-shaped notch with the concavo-convex portion. Further, according to this structure, the space inside the tightening plate can be made small, and the workability is good.
第１図，第２図はこの発明の実施例を示す断面図と分解
斜視図、第３図はこの発明の他の実施例の分解斜視図、
第４図，第５図はその要部断面図、第６図、第７図は他
の実施例の分解斜視図、第８図はセグメントの斜視図で
ある。 １……継手金具、Ｃ……コンクリート部材、２……締付
けプレート、３……切欠部、４……側壁、５……後壁、
６……空間部、７……凸部、８……アンカー筋、９……
接合用ボルト、10……大型座金、11……凹部、12……ナ
ット。1 and 2 are a sectional view and an exploded perspective view showing an embodiment of the present invention, and FIG. 3 is an exploded perspective view of another embodiment of the present invention,
4 and 5 are cross-sectional views of relevant parts, FIGS. 6 and 7 are exploded perspective views of another embodiment, and FIG. 8 is a perspective view of a segment. 1 ... Fitting metal fitting, C ... Concrete member, 2 ... Tightening plate, 3 ... Notch, 4 ... Side wall, 5 ... Rear wall,
6 ... space part, 7 ... convex part, 8 ... anchor line, 9 ...
Joining bolt, 10 …… Large washer, 11 …… Recess, 12 …… Nut.
Claims (1)
り、コンクリート部材内面に開口するＵ字状切欠部が形
成されている締付けプレートと、前記締付けプレートの
内側に形成されている接合作業用空間部とを有してな
り、 前記締付けプレートと接合ボルトを挿通する大型座金を
それら表面の凹凸状部を係合させ、接合ボルトによって
突合せた締付けプレート相互を締結してなることを特徴
とするコンクリート部材接合用継手部構造。1. A tightening plate which is arranged on a joint end surface of a concrete member and has a U-shaped cutout opening to the inner surface of the concrete member, and a joint work space formed inside the tightening plate. And a large washer for inserting the tightening plate and the joining bolt into engagement with the uneven portions of the surface thereof, and the tightening plates abutted by the joining bolt are fastened to each other. Joint structure for joining members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246795A JPH0754078B2 (en) | 1988-09-30 | 1988-09-30 | Joint structure for joining concrete members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246795A JPH0754078B2 (en) | 1988-09-30 | 1988-09-30 | Joint structure for joining concrete members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0296096A JPH0296096A (en) | 1990-04-06 |
| JPH0754078B2 true JPH0754078B2 (en) | 1995-06-07 |
Family
ID=17153786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63246795A Expired - Lifetime JPH0754078B2 (en) | 1988-09-30 | 1988-09-30 | Joint structure for joining concrete members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754078B2 (en) |
-
1988
- 1988-09-30 JP JP63246795A patent/JPH0754078B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0296096A (en) | 1990-04-06 |
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