JPH0351439Y2 - - Google Patents
Info
- Publication number
- JPH0351439Y2 JPH0351439Y2 JP557687U JP557687U JPH0351439Y2 JP H0351439 Y2 JPH0351439 Y2 JP H0351439Y2 JP 557687 U JP557687 U JP 557687U JP 557687 U JP557687 U JP 557687U JP H0351439 Y2 JPH0351439 Y2 JP H0351439Y2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- hollow
- concrete
- flange
- connecting 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000013011 mating Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案はコンクリートセグメントのねじ継手
に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to a threaded joint for concrete segments.
従来、コンクリートセグメントの継手として
は、特開昭58−191868号公報により公表されてい
るように、結合すべき各コンクリートセグメント
の端部にそれぞれ継手凹部を設け、各コンクリー
トセグメントに埋設されているPC鋼材の端部を
前記凹部内に突出させ、一方のPC鋼材の突出端
部に、基端部内周にフランジを備えているスリー
ブナツトにおける前記フランジを嵌設すると共
に、スリーブナツトの内側に位置する係合ナツト
とスリーブナツトの外側に位置するナツトとを螺
合し、他のPC鋼材の突出端部に螺合されている
継手ナツトに、前記スリーブナツトを螺合し、か
つスリーブナツトの前記フランジを係合ナツトに
係合させるように構成した継手が知られている。
Conventionally, as a joint for concrete segments, a joint recess is provided at the end of each concrete segment to be joined, and a PC buried in each concrete segment is used, as disclosed in Japanese Patent Application Laid-Open No. 191868/1986. The end of the steel material is made to protrude into the recess, and the flange of a sleeve nut having a flange on the inner periphery of the base end is fitted into the protruding end of one of the PC steel materials, and the flange is located inside the sleeve nut. The engagement nut and the nut located on the outside of the sleeve nut are screwed together, the sleeve nut is screwed to the joint nut screwed to the protruding end of another prestressing steel material, and the flange of the sleeve nut is screwed together. A joint is known that is configured to engage with an engagement nut.
しかるに、この継手の場合は、ジヤツキ付き引
き寄せ工具を一方のPC鋼材のナツトおよび他方
のPC鋼在の継手ナツトに係合して、その引寄せ
工具によりナツトおよび継手ナツトを介して各
PC鋼棒を引寄せた状態で、スリーブナツトを継
手ナツトに螺合する作業が行なわねばならないの
で、結合作業が煩雑であり、また各コンクリート
セグメントの凹部から突出しているPC鋼棒にナ
ツト、係合ナツト、スリーブナツト、継手ナツト
等が装着されているので各コンクリートの凹部す
なわち断面欠損部分が大きくなるという問題があ
る。 However, in the case of this joint, a pulling tool with a jack is engaged with one PC steel nut and the other PC steel joint nut, and the pulling tool pulls each through the nut and the joint nut.
The sleeve nut must be screwed into the joint nut while the PC steel rods are drawn together, which makes the connection work complicated, and the nuts and bolts must be attached to the PC steel rods protruding from the recesses of each concrete segment. Since dowel nuts, sleeve nuts, joint nuts, etc. are installed, there is a problem in that the concave portion of each concrete, that is, the section missing portion becomes large.
この考案は前述の問題を有利に解決できるコン
クリートセグメントの継手を提供することを目的
とするものであつて、この考案の要旨とするとこ
ろは、連絡すべき各コンクリートセグメント１，
２に継手凹部３，４が設けられ、先端部の内側に
係止フランジ５を備えている中空継手金具６が一
方のコンクリートセグメント１に埋設されると共
に、その中空継手金具６の基端部が一方のコンク
リートセグメント１に埋設された連結棒鋼７に結
合され、かつ中空継手金具６の中空部は前記継手
凹部３内に開口し、基端部外周に係合フランジ８
を備えると共に中間部に回動工具係合用非円形部
９を備えている連結用ボルト１０が、前記係止フ
ランジ５に摺動および回動自在に嵌挿され、他方
のコンクリートセグメント２に、連結棒鋼７とそ
の端部に結合されている雌ねじ筒１１とが埋設さ
れると共に、その雌ねじ筒１１の開口部が前記他
方のコンクリートセグメント２における継手凹部
４内に開口し、前記連結用ボルト１０が雌ねじ筒
１１に螺合されると共に、連結用ボルト１０の係
合フランジ８が中空継手金具６の係止フランジ５
に係合され、かつ前記中空継手金具６および雄ね
じ筒１１のうちの少なくとも一方に、連結用ボル
ト１０に螺合されたロツクナツトが押付けられて
いることを特徴とするコンクリートセグメントの
継手にある。
The purpose of this invention is to provide a concrete segment joint that can advantageously solve the above-mentioned problems, and the gist of this invention is that each concrete segment 1,
2 is provided with joint recesses 3 and 4, and a hollow joint fitting 6 having a locking flange 5 on the inside of the tip is buried in one of the concrete segments 1, and the base end of the hollow joint fitting 6 is The hollow part of the hollow joint fitting 6 is connected to the connecting steel bar 7 buried in one of the concrete segments 1, and opens into the joint recess 3, and an engaging flange 8 is formed on the outer periphery of the base end.
A connecting bolt 10 having a non-circular portion 9 for engaging a rotary tool in the middle portion is slidably and rotatably inserted into the locking flange 5, and is connected to the other concrete segment 2. The steel bar 7 and the female threaded cylinder 11 connected to the end thereof are buried, and the opening of the female threaded cylinder 11 opens into the joint recess 4 in the other concrete segment 2, and the connecting bolt 10 is inserted. The engaging flange 8 of the connecting bolt 10 is screwed into the female threaded cylinder 11, and the engaging flange 8 of the connecting bolt 10 is connected to the locking flange 5 of the hollow joint fitting 6.
The concrete segment joint is engaged with the concrete segment, and has a lock nut screwed onto a connecting bolt 10 pressed against at least one of the hollow joint fitting 6 and the male threaded cylinder 11.
次にこの考案を図示の例によつて詳細に説明す
る。
Next, this invention will be explained in detail using illustrated examples.
図面はこの考案の一実施例を示すものであつ
て、連結すべき各コンクリートセグメント１，２
の端部に継手凹部３，４が設けられ、円筒体１２
の先端部の内側に円形の係止フランジ５が一体に
設けられると共に、前記円筒体１２の基端部に雌
ねじ孔を有する端板１３が螺合されて、中空継手
金具６が構成され、丸鋼からなる連結棒鋼７の一
端部に設けられた雄ねじ１４に、ロツクナツト１
５および前記中空継手金具６の端板１３が螺合さ
れ、かつ前記ロツクナツト１５は端板１３に圧接
され、さらに前記中空継手金具６、連結棒鋼７お
よびロツクナツト１５はコンクリートセグメント
１，２に埋設され、中空継手金具６の先端面が継
手凹部３の底面に露出すると共に、中空継手金具
６の中空部が継手凹部３内に開口している。 The drawing shows one embodiment of this invention, and shows each concrete segment 1 and 2 to be connected.
Joint recesses 3, 4 are provided at the ends of the cylindrical body 12.
A circular locking flange 5 is integrally provided inside the distal end of the cylindrical body 12, and an end plate 13 having a female threaded hole is screwed into the proximal end of the cylindrical body 12 to form a hollow joint fitting 6. A lock nut 1 is attached to a male thread 14 provided at one end of a connecting steel bar 7 made of steel.
5 and the end plate 13 of the hollow joint fitting 6 are screwed together, and the lock nut 15 is pressed against the end plate 13, and the hollow joint fitting 6, the connecting steel bar 7 and the lock nut 15 are buried in the concrete segments 1 and 2. The distal end surface of the hollow joint fitting 6 is exposed on the bottom surface of the joint recess 3, and the hollow portion of the hollow joint fitting 6 opens into the joint recess 3.
基端部外周に円形の係合フランジ８を備えてい
る連結用ボルト１０の中間部に、そのボルトの雄
ねじの谷径よりも短かい対角線を有する多角形軸
部からなる回動工具係合用非円形部９が設けら
れ、かつ連結用ボルト１０が前記係止フランジ５
内に摺動および回動自在に嵌挿されると共に、係
合フランジ８が中空継手金具６内に配置され、さ
らに連結用ボルト１０における継手凹部３内に突
出した部分には、２つのロツクナツト１６，１７
が螺合されている。 A connecting bolt 10, which has a circular engaging flange 8 on the outer periphery of its base end, has a rotary tool engaging non-receptacle, which has a polygonal shaft portion having a diagonal line shorter than the root diameter of the male thread of the bolt, in the middle of the connecting bolt 10. A circular portion 9 is provided, and a connecting bolt 10 is connected to the locking flange 5.
The engaging flange 8 is disposed within the hollow joint fitting 6, and the connecting bolt 10 has two lock nuts 16, 17
are screwed together.
雌ねじ１８を備えている雌ねじ筒１１の基端部
に、前記連結棒鋼７の他端部が嵌挿されて溶接に
より固着され、かつ前記雌ねじ筒１１はコンクリ
ートセグメント１，２に埋設され、さらに雌ねじ
筒１１の先端面が継手凹部４の底面に露出すると
共に、雌ねじ筒１１の中空部が継手凹部４内に開
口している。 The other end of the connecting steel bar 7 is fitted into the proximal end of the female thread tube 11 provided with the female thread 18 and fixed by welding. The distal end surface of the tube 11 is exposed at the bottom surface of the joint recess 4 , and the hollow portion of the female threaded tube 11 opens into the joint recess 4 .
各コンクリートセグメント１，２を連結する場
合は、第３図に示すように、各コンクリートセグ
メント１，２の端面が相互に接合されると共に、
コンクリートセグメント２における雌ねじ筒１１
の中心とコンクリートセグメント１における連結
用ボルト１０の中心とが同一直線上に位置するよ
うに配置され、次に第４図に示すように、連結用
ボルト１０が雌ねじ筒１１に螺合されると共に係
合フランジ８が係止フランジ５に圧接され、かつ
中空継手金具６の先端面および雌ねじ筒１１の先
端面に、連結用ボルト１０に螺合されているロツ
クナツト１６，１７が圧接され、次に第５図に示
すように、前記各継手凹部３，４内にモルタル等
の硬化性充填材１９が充填される。 When connecting each concrete segment 1, 2, as shown in FIG. 3, the end faces of each concrete segment 1, 2 are joined to each other, and
Female thread cylinder 11 in concrete segment 2
and the center of the connecting bolt 10 in the concrete segment 1 are located on the same straight line, and then, as shown in FIG. The engagement flange 8 is pressed against the locking flange 5, and the lock nuts 16 and 17, which are threaded onto the connecting bolt 10, are pressed against the end surface of the hollow joint fitting 6 and the end surface of the female threaded cylinder 11, and then As shown in FIG. 5, each of the joint recesses 3 and 4 is filled with a curable filler 19 such as mortar.
前記実施例のように、連結用ボルト１０に螺合
されているロツクナツト１６を中空継手金具６の
先端面に圧接させて、係合フランジ８およびロツ
クナツト１６により連結用ボルト１０を中空継手
金具６に一体的に固定すれば、連結用ボルト１
０、中空継手金具６および雌ねじ筒１１によるセ
グメント継手部に高剛性を付与することができ
る。また連結用ボルト１０に螺合されているロツ
クナツト１７を前記雌ねじ筒１１の先端面に圧接
させて、連結用ボルト１０および雌ねじ筒１１を
も一体的に固定すれば、セグメント継手部の剛性
をさらに大きくすることができる。 As in the embodiment described above, the lock nut 16 screwed onto the connecting bolt 10 is brought into pressure contact with the front end surface of the hollow joint fitting 6, and the connecting bolt 10 is attached to the hollow joint fitting 6 by the engaging flange 8 and the lock nut 16. If fixed integrally, connecting bolt 1
0. High rigidity can be imparted to the segment joint by the hollow joint fitting 6 and the female threaded cylinder 11. Furthermore, if the lock nut 17 screwed onto the connecting bolt 10 is brought into pressure contact with the distal end surface of the female threaded cylinder 11, and the connecting bolt 10 and the female threaded cylinder 11 are also fixed integrally, the rigidity of the segment joint part can be further increased. It can be made larger.
この考案を実施する場合、コンクリートセグメ
ントに埋設されているアンカー鉄筋材や主鉄筋材
等を連結棒鋼として利用してもよく、また連結棒
鋼としては、異形鉄筋または丸鋼の何れを使用し
てもよく、さらに前記回動工具係合用非円形部９
の断面形状は６角形、４角形その他任意の非円形
断面形状であつてもよい。 When implementing this idea, anchor reinforcing bars, main reinforcing bars, etc. buried in the concrete segment may be used as the connecting steel bars, and either deformed reinforcing bars or round steel may be used as the connecting bars. Furthermore, the non-circular portion 9 for engaging the rotary tool
The cross-sectional shape may be hexagonal, quadrangular, or any other non-circular cross-sectional shape.
前記端板１３を円筒体１２に螺合して点溶接に
より固定してもよく、また前記端板１３を円筒体
１２に嵌合して溶接により固着してもよい。 The end plate 13 may be screwed onto the cylindrical body 12 and fixed by spot welding, or the end plate 13 may be fitted onto the cylindrical body 12 and fixed by welding.
前記雌ねじ筒１１の基端部に設けた雌ねじに連
結棒鋼７を螺合してもよく、また前記中空継手金
具６を連結棒鋼７に対し他の連結部材を介して連
結してもよい。 The connecting steel bar 7 may be screwed into a female thread provided at the base end of the female threaded cylinder 11, or the hollow joint fitting 6 may be connected to the connecting steel bar 7 via another connecting member.
この考案は、セグメントリングを構成するセグ
メント相互の継手すなわちセグメントリング周囲
方向に隣り合うセグメントの継手（ピース間継
手）および隣り合うセグメントリングにおけるセ
グメント相互の継手（リング間継手）の何れにも
実施することができる。 This invention can be applied to joints between segments constituting a segment ring, that is, joints between segments adjacent in the circumferential direction of a segment ring (piece-to-piece joints), and joints between segments in adjacent segment rings (ring-to-ring joints). be able to.
この考案によれば、連結すべき各コンクリート
セグメント１，２に継手凹部３，４が設けられ、
先端部の内側に係止フランジ５を備えている中空
継手金具６が一方のコンクリートセグメント１に
埋設されると共に、その中空継手金具６の基端部
が一方のコンクリートセグメント１に埋設された
連結棒鋼７に結合され、かつ中空継手金具６の中
空部は前記継手凹部３内に開口し、基端部外周に
係合フランジ８を備えると共に中間部に回動工具
係合用非円形部９を備えている連結用ボルト１０
が、前記係止フランジ５に摺動および回動自在に
嵌挿され、他方のコンクリートセグメント２に、
連結棒鋼７とその端部に結合されている雌ねじ筒
１１とが埋設されると共に、その雌ねじ筒１１の
開口部が前記他方のコンクリートセグメント２に
おける継手凹部４内に開口しているので、単に前
記一方のコンクリートセグメント１に付属する連
結用ボルト１０を他方のコンクリートセグメント
２に埋込固定された雌ねじ筒１１に螺合し、かつ
連結用ボルト１０における回動工具係合用非円形
部９にスパナ等の回動工具を係合して、その連結
用ボルト１０を緊締するという簡単な操作を行な
うことにより、各コンクリートセグメント１，２
を容易にかつ迅速にしかも強固に連結することが
でき、さらに中空継手金具６がコンクリートセグ
メント１に埋設されると共に、回動工具係合用非
円形部９が中空継手金具６に嵌入されているの
で、継手凹部３内への継手部材の突出長さが短か
くて済み、しかも継手凹部４内への突出長さも短
かくて済み、そのため各コンクリートセグメント
１，２における継手凹部３，４の深さを浅くし
て、各コンクリートセグメント１，２の断面欠損
を少なくすることができ、また前記中空継手金具
６および雌ねじ筒１１のうちの少なくとも一方
に、連結用ボルト１０に螺合されたロツクナツト
を圧接させることにより、各コンクリートセグメ
ント１，２を連結したのち回動工具係合用非円形
部９の弛み方向回動を確実に防止することができ
る等の効果が得られる。
According to this invention, joint recesses 3, 4 are provided in each concrete segment 1, 2 to be connected,
A connecting steel bar in which a hollow joint fitting 6 having a locking flange 5 on the inside of its tip is buried in one concrete segment 1, and a base end of the hollow joint fitting 6 is buried in one concrete segment 1. 7, the hollow part of the hollow joint fitting 6 opens into the joint recess 3, is provided with an engaging flange 8 on the outer periphery of the base end, and is provided with a non-circular part 9 for engaging a rotary tool in the middle part. Connecting bolt 10
is slidably and rotatably fitted into the locking flange 5, and is inserted into the other concrete segment 2,
Since the connecting steel bar 7 and the female threaded tube 11 connected to the end thereof are buried, and the opening of the female threaded tube 11 opens into the joint recess 4 in the other concrete segment 2, the above-mentioned The connecting bolt 10 attached to one concrete segment 1 is screwed into the internally threaded tube 11 embedded and fixed in the other concrete segment 2, and a spanner, etc. By engaging the rotary tool and tightening the connecting bolt 10, each concrete segment 1, 2
can be connected easily and quickly and firmly, and furthermore, since the hollow joint fitting 6 is buried in the concrete segment 1 and the non-circular part 9 for engaging the rotating tool is fitted into the hollow joint fitting 6. , the length of the joint member protruding into the joint recess 3 can be short, and the length of the joint member protruding into the joint recess 4 can also be short, so that the depth of the joint recesses 3 and 4 in each concrete segment 1 and 2 can be reduced. This makes it possible to reduce cross-sectional defects in each of the concrete segments 1 and 2, and to press-fit a lock nut screwed onto the connecting bolt 10 to at least one of the hollow joint fitting 6 and the internally threaded tube 11. By doing so, effects such as being able to reliably prevent the rotating tool engaging non-circular portion 9 from rotating in the loosening direction after the concrete segments 1 and 2 are connected can be obtained.
図面はこの考案の一実施例を示すものであつ
て、第１図はこの考案の継手を有するコンクリー
トセグメントの一部切欠側面図、第２図はそのセ
グメントの継手部付近を示す正面図、第３図は連
結すべきセグメントを接合した状態を示す縦断側
面図、第４図はセグメントを連結した状態を示す
縦断側面図、第５図は連結後のセグメントの継手
凹部内に硬化性充填材を充填した状態を示す縦断
側面図、第６図はロツクナツトを螺合した連結用
ボルトの側面図である。
図において、１および２はコンクリートセグメ
ント、３および４は継手凹部、５は係止フラン
ジ、６は中空継手金具、７は連結棒鋼、８は係合
フランジ、９は回動工具係合用非円形部、１０は
連結用ボルト、１１は雌ねじ筒、１５ないし１７
はロツクナツト、１９は硬化性充填材である。
The drawings show one embodiment of this invention, in which Fig. 1 is a partially cutaway side view of a concrete segment having a joint of this invention, Fig. 2 is a front view showing the vicinity of the joint of the segment, and Fig. 2 is a front view showing the vicinity of the joint of the segment. Figure 3 is a longitudinal side view showing a state in which the segments to be connected are joined, Figure 4 is a longitudinal side view showing a state in which the segments are connected, and Figure 5 is a view showing a hardenable filler in the joint recess of the connected segments. FIG. 6 is a side view of a connecting bolt screwed with a lock nut. In the figure, 1 and 2 are concrete segments, 3 and 4 are joint recesses, 5 is a locking flange, 6 is a hollow joint fitting, 7 is a connecting steel bar, 8 is an engagement flange, and 9 is a non-circular part for engaging a rotating tool. , 10 is a connecting bolt, 11 is a female thread cylinder, 15 to 17
is a rock nut, and 19 is a curable filler.
Claims (1)
継手凹部３，４が設けられ、先端部の内側に係止
フランジ５を備えている中空継手金具６が一方の
コンクリートセグメント１に埋設されると共に、
その中空継手金具６の基端部が一方のコンクリー
トセグメント１に埋設された連結棒鋼７に結合さ
れ、かつ中空継手金具６の中空部は前記継手凹部
３内に開口し、基端部外周に係合フランジ８を備
えると共に中間部に回動工具係合用非円形部９を
備えている連結用ボルト１０が、前記係止フラン
ジ５に摺動および回動自在に嵌挿され、他方のコ
ンクリートセグメント２に、連結棒鋼７とその端
部に結合されている雌ねじ筒１１とが埋設される
と共に、その雌ねじ筒１１の開口部が前記他方の
コンクリートセグメント２における継手凹部４内
に開口し、前記連結用ボルト１０が雌ねじ筒１１
に螺合されると共に、連結用ボルト１０の係合フ
ランジ８が中空継手金具６の係止フランジ５に係
合され、かつ前記中空継手金具６および雌ねじ筒
１１のうちの少なくとも一方に、連結用ボルト１
０に螺合されたロツクナツトが圧接されているこ
とを特徴とするコンクリートセグメントの継手。 Joint recesses 3 and 4 are provided in each of the concrete segments 1 and 2 to be connected, and a hollow joint fitting 6 having a locking flange 5 inside the tip is buried in one of the concrete segments 1,
The base end of the hollow joint fitting 6 is connected to the connecting steel bar 7 buried in one of the concrete segments 1, and the hollow part of the hollow joint fitting 6 opens into the joint recess 3 and engages the outer periphery of the base end. A connecting bolt 10 having a mating flange 8 and a non-circular portion 9 for engaging a rotary tool in the middle portion is slidably and rotatably fitted into the locking flange 5, and is connected to the other concrete segment 2. The connecting steel bar 7 and the female threaded cylinder 11 connected to the end thereof are buried, and the opening of the female threaded cylinder 11 opens in the joint recess 4 in the other concrete segment 2, and The bolt 10 is a female thread cylinder 11
At the same time, the engaging flange 8 of the connecting bolt 10 is engaged with the locking flange 5 of the hollow joint fitting 6, and at least one of the hollow joint fitting 6 and the female threaded cylinder 11 is provided with a connecting bolt. bolt 1
A joint for concrete segments, characterized in that a lock nut screwed into the joint is press-welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP557687U JPH0351439Y2 (en) | 1987-01-20 | 1987-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP557687U JPH0351439Y2 (en) | 1987-01-20 | 1987-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63116600U JPS63116600U (en) | 1988-07-27 |
| JPH0351439Y2 true JPH0351439Y2 (en) | 1991-11-05 |
Family
ID=30787289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP557687U Expired JPH0351439Y2 (en) | 1987-01-20 | 1987-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351439Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649674Y2 (en) * | 1989-02-06 | 1994-12-14 | 日本鋼管ライトスチール株式会社 | Joint structure of concrete segment |
-
1987
- 1987-01-20 JP JP557687U patent/JPH0351439Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63116600U (en) | 1988-07-27 |
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