JPH0579799B2 - - Google Patents
Info
- Publication number
- JPH0579799B2 JPH0579799B2 JP63152369A JP15236988A JPH0579799B2 JP H0579799 B2 JPH0579799 B2 JP H0579799B2 JP 63152369 A JP63152369 A JP 63152369A JP 15236988 A JP15236988 A JP 15236988A JP H0579799 B2 JPH0579799 B2 JP H0579799B2
- Authority
- JP
- Japan
- Prior art keywords
- screw rod
- concrete member
- concrete
- recess
- connecting pin
- 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
- 239000004567 concrete Substances 0.000 claims description 80
- 238000003780 insertion Methods 0.000 claims description 25
- 230000037431 insertion Effects 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
メントあるいはその他のプレキヤストコンクリー
ト部材の締結装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fastening device for concrete segments for tunnel lining or other precast concrete members.
従来、プレキヤストコンクリート部材の一つで
あるコンクリートセグメントおよびその締結構造
としては、第１３図ないし第１５図に示すよう
に、平版状のコンクリートセグメント１０の連結
端部に、ボルト挿通孔１１を有する鋼製継手板１
２とその継手板１２に取付用鋼板１３を介して固
定されたアンカー鉄筋１４とからなる鋼製継手金
具１５を埋込固定し、前記コンクリートセグメン
ト１０に各継手板１２の内側において締結用凹部
１６を設け、連結すべきセグメント１０を相互に
接合すると共に、各コンクリートセグメント１０
における鋼製継手板１２をそれらにわたつて挿通
した鋼製ボルト１７および鋼製ナツト１８により
締付結合したものが知られており、また第１７図
および第１８図に示すように、周縁リブ１９およ
び中間リブ２０を有するコンクリートセグメント
２１における前記周縁リブ１９に多数のボルト挿
通孔１１を設け、連結すべきセグメント２１を相
互に接合すると共に、各コンクリートセグメント
２１を周縁リブ１９のボルト挿通孔１１にわたつ
て挿通した鋼製ボルト１７および鋼製ナツト１８
により締付結合したものが知られている。
Conventionally, as shown in FIGS. 13 to 15, a concrete segment, which is one of precast concrete members, and its fastening structure have a bolt insertion hole 11 at the connecting end of a flat concrete segment 10. Steel joint plate 1
2 and an anchor reinforcing bar 14 fixed to the joint plate 12 via a mounting steel plate 13. A fastening recess 16 is embedded in the concrete segment 10 on the inside of each joint plate 12. is provided to mutually join the segments 10 to be connected, and to connect each concrete segment 10
It is known that a steel joint plate 12 is tightened and connected by a steel bolt 17 and a steel nut 18 that are inserted across them, and as shown in FIGS. 17 and 18, a peripheral rib 19 A large number of bolt insertion holes 11 are provided in the peripheral rib 19 of the concrete segment 21 having the intermediate rib 20, so that the segments 21 to be connected are mutually joined, and each concrete segment 21 is inserted into the bolt insertion hole 11 of the peripheral rib 19. Steel bolt 17 and steel nut 18 inserted across
It is known that the joint is tightened by the following methods.
しかるに、前記従来の各締結構造の場合、各セ
グメントを接合して締結するとき、一方のセグメ
ントを、他方のセグメントに対し、各セグメント
のボルト挿通孔１１が合致するように保持した状
態で、ボルト１７を各ボルト挿通孔１１にわたつ
て挿通する必要があるので、各セグメントの締結
操作を行ないにくいという問題がある。
However, in the case of each of the conventional fastening structures described above, when joining and fastening each segment, one segment is held so that the bolt insertion hole 11 of each segment matches the other segment, and the bolt is 17 through each bolt insertion hole 11, there is a problem in that it is difficult to perform a fastening operation for each segment.
また第１５図に示す締結構造の場合は、締結後
にセグメント相互間に大きな引張力が作用する
と、第１６図に示すように、継手板１２が曲げ変
形を起こして、隣り合うセグメント間に間隙が生
じ、そのためセグメント連結部のせん断抵抗強度
および引張抵抗強度等が低下し、かつセグメント
間の防水性が悪くなり、さらに鋼材の露出面が大
きいので、防食上の問題も発生する。 In addition, in the case of the fastening structure shown in FIG. 15, if a large tensile force is applied between the segments after fastening, the joint plate 12 will bend and deform as shown in FIG. 16, resulting in a gap between adjacent segments. As a result, the shear resistance strength, tensile resistance strength, etc. of the segment connection portion are reduced, and the waterproofness between the segments is deteriorated.Furthermore, since the exposed surface of the steel material is large, corrosion prevention problems also occur.
また第１７図および第１８図に示すセグメント
およびその締結構造の場合は、周縁リブ１９およ
び中間リブ２０の間に大きな凹陥部２２が存在す
るので、セグメント内の配筋上の制約を受け、そ
のため鉄筋量が多くなつたりセグメントの厚さが
大きくなつたりしてコスト高になり、さらに鋼製
ボルト１７の両端部および鋼製ナツト１８が露出
するので、防食上の問題も発生する。 In addition, in the case of the segments and their fastening structures shown in FIGS. 17 and 18, there is a large recess 22 between the peripheral rib 19 and the intermediate rib 20, so there are restrictions on the reinforcement arrangement within the segment. The cost increases as the amount of reinforcing bars increases and the thickness of the segments increases, and furthermore, since both ends of the steel bolt 17 and the steel nut 18 are exposed, corrosion protection problems also occur.
この発明は、コンクリートセグメント等のコン
クリート部材を強力に締結することができ、かつ
金属材料の露出面を少なくして防食性を向上させ
ることができ、さらにコンクリート部材内の配筋
設計上も有利であるコンクリート部材の締結装置
を提供することを目的とするものである。 This invention enables concrete members such as concrete segments to be strongly fastened, reduces the exposed surface of metal materials and improves corrosion resistance, and is also advantageous in terms of reinforcing reinforcement design within concrete members. The object is to provide a fastening device for certain concrete members.
前記目的を達成するために、この発明のコンク
リート部材の締結装置においては、連結すべき一
方のコンクリート部材１Ａの連結端部に、そのコ
ンクリート部材１Ａの表面に向かつて開口する凹
部２が設けられると共に、その凹部２に連通して
いる金属製中空連結ピン３の基端側部分が埋込固
定され、その中空連結ピン３が螺杆４に挿入さ
れ、連結すべき他方のコンクリート部材１Ｂの連
結端部に、ナツト５を回動不能に保持している金
属製筒状ピン挿込具６が埋込固定され、前記コン
クリート部材１Ａの端面から突出している中空連
結ピン３の突出部が前記筒状ピン挿込具６に嵌入
され、前記凹部２内において螺杆４の基端部に係
止頭部７が設けられ、前記螺杆４の先端の雄ねじ
部８は前記ナツト５に螺合され、そのナツト５に
螺合された螺杆４とその螺杆４に設けられた係止
頭部７とにより各コンクリート部材１Ａ，１Ｂが
締付連結されている。
In order to achieve the above object, in the concrete member fastening device of the present invention, a recess 2 that opens toward the surface of the concrete member 1A is provided at the connecting end of one of the concrete members 1A to be connected. The proximal end portion of a metal hollow connecting pin 3 communicating with the recess 2 is embedded and fixed, and the hollow connecting pin 3 is inserted into the screw rod 4 to connect the connecting end of the other concrete member 1B to be connected. A metal cylindrical pin inserter 6 that holds the nut 5 unrotatably is embedded and fixed therein, and the protruding portion of the hollow connecting pin 3 protruding from the end face of the concrete member 1A is inserted into the cylindrical pin. A locking head 7 is provided at the proximal end of the screw rod 4 in the recess 2, and a male threaded portion 8 at the tip of the screw rod 4 is screwed into the nut 5. Each concrete member 1A, 1B is tightened and connected by a screw rod 4 screwed into the screw rod 4 and a locking head 7 provided on the screw rod 4.
また、連結すべき一方のコンクリート部材１Ａ
の連結端部に、内部に雌ねじ部９を備えている金
属製中空連結ピン３の基端側部分が埋込固定さ
れ、連結すべき他方のコンクリート部材１Ｂの連
結端部に、そのコンクリート部材１Ｂの表面に向
かつて開口する凹部２が設けられると共に、その
凹部２およびコンクリート部材１Ｂの端面に開口
する金属製筒状ピン挿込具６が埋込固定され、前
記コンクリート部材１Ａの端面から突出している
中空連結ピン３の突出部が前記筒状ピン挿込具６
に嵌入され、前記凹部２内において螺杆４の基端
部に係止頭部７が設けられ、前記螺杆４の先端の
雄ねじ部８は前記金属製中空連結ピン３の雌ねじ
部９に螺合され、その雌ねじ部９に螺合された螺
杆４と、その螺杆４に設けられた係止頭部７とに
より各コンクリート部材１Ａ，１Ｂが締付連結さ
れることによつても、同一の目的を達成すること
ができる。 Also, one concrete member 1A to be connected
The proximal end portion of a metal hollow connecting pin 3 having an internally threaded internal thread 9 is embedded and fixed in the connecting end of the other concrete member 1B to be connected. A recess 2 is provided that opens toward the surface of the concrete member 1A, and a metal cylindrical pin insertion tool 6 that opens toward the recess 2 and the end face of the concrete member 1B is embedded and fixed, and protrudes from the end face of the concrete member 1A. The protruding portion of the hollow connecting pin 3 is connected to the cylindrical pin insertion tool 6.
A locking head 7 is provided at the proximal end of the screw rod 4 in the recess 2, and a male threaded portion 8 at the tip of the screw rod 4 is screwed into the female screw portion 9 of the metal hollow connecting pin 3. The same purpose can also be achieved by tightening and connecting the concrete members 1A and 1B with the screw rod 4 screwed into the female screw portion 9 and the locking head 7 provided on the screw rod 4. can be achieved.
一方のコンクリート部材１Ａにおける中空連結
ピン３を他方のコンクリート部材１Ｂにおける筒
状ピン挿込具６に挿入したのち、凹部２内で螺杆
４の基端部に係止頭部７を取付け、その係止頭部
７により螺杆４を回動して、その螺杆４を筒状ピ
ン挿込具６の奥部に設けられたナツト５または中
空連結ピン３内に設けられた雌ねじ部９に螺合す
る。
After inserting the hollow connecting pin 3 in one concrete member 1A into the cylindrical pin insertion tool 6 in the other concrete member 1B, the locking head 7 is attached to the base end of the screw rod 4 in the recess 2, and the locking head 7 is attached to the base end of the screw rod 4 in the recess 2. The screw rod 4 is rotated by the stop head 7, and the screw rod 4 is screwed into the nut 5 provided at the back of the cylindrical pin insertion tool 6 or the female threaded portion 9 provided inside the hollow connecting pin 3. .
次にこの発明を図示の例によつて詳細に説明す
る。
Next, the present invention will be explained in detail using illustrated examples.
第４図ないし第６図はこの発明の第１実施例の
締結装置を備えているコンクリートセグメントか
らなるコンクリート部材１を示すものであつて、
円弧版状のコンクリート部材１における一方の円
弧状端面側の連結端部すなわち一方の連結端部
に、そのコンクリート部材１の内側表面に向かつ
て開口する複数の凹部２が設けられ、その先端部
外周に先細りのテーパー面２３を形成した金属製
中空連結ピン３はコンクリート部材１の端面２４
に直交するように配置され、さらに中空連結ピン
３の基端側部分にアンカー部材２５が溶接により
固着され、中空連結ピン３の基端側部分とアンカ
ー部材２５とは、コンクリート部材１の一方の連
結端部に埋込固定され、前記中空連結ピン３の基
端面は凹部２の側面とほぼ同一平面上に配置さ
れ、また中空連結ピン３の先端側の円筒状外面は
コンクリート部材１の端面２４から突出してい
る。 4 to 6 show a concrete member 1 made of concrete segments equipped with a fastening device according to a first embodiment of the present invention,
A plurality of recesses 2 opening toward the inner surface of the concrete member 1 are provided at the connecting end on one arcuate end surface side of the arc-shaped concrete member 1, that is, one connecting end, and the outer periphery of the tip thereof is The metal hollow connecting pin 3 having a tapered surface 23 is connected to the end surface 24 of the concrete member 1.
Further, an anchor member 25 is fixed to the base end portion of the hollow connecting pin 3 by welding, and the base end portion of the hollow connecting pin 3 and the anchor member 25 are connected to one side of the concrete member 1 The hollow connecting pin 3 is embedded and fixed in the connecting end, and the base end surface of the hollow connecting pin 3 is disposed on substantially the same plane as the side surface of the recess 2, and the cylindrical outer surface on the tip side of the hollow connecting pin 3 is flush with the end surface 24 of the concrete member 1. stands out from
両端に雄ねじ部８，２６を有する鋼製螺杆４の
先端側部分は中空連結ピン３内に挿入され、その
螺杆４の基端の雄ねじ部２６は凹部２の側壁に埋
込固定された保持用ナツト２７に螺合され、その
保持用ナツト２７により螺杆４が中空連結ピン３
から抜け出さないように保持されている。 The distal end portion of the steel screw rod 4, which has male threads 8 and 26 at both ends, is inserted into the hollow connecting pin 3, and the male screw portion 26 at the base end of the screw rod 4 is embedded into the side wall of the recess 2 for holding purposes. It is screwed into a nut 27, and the threaded rod 4 is connected to the hollow connecting pin 3 by the holding nut 27.
It is held so that it does not slip out.
前記中空連結ピン３を嵌入するための円形孔を
有する金属製筒状ピン挿込具６の一端部の外側
に、金属製キヤツプ２８の開口端部が嵌合されて
溶接により固定され、前記キヤツプ２８の開口部
側に設けられたナツト収納用６角形孔２９に６角
形ナツト５が収容され、かつキヤツプ２８の奥部
に螺杆端部挿入用凹部３０が設けられ、さらにキ
ヤツプ２８とナツト５との間に遊隙が設けられ、
また前記筒状ピン挿込具６にアンカー部材３１が
溶接により固着され、そのアンカー部材３１およ
びキヤツプ２８を固着した筒状ピン挿込具６は、
コンクリート部材１における他方の連結端部に埋
込固定され、前記筒状ピン挿込具６の先端面はコ
ンクリート部材１の端面３２とほぼ同一平面上に
配置されている。 The open end of a metal cap 28 is fitted onto the outside of one end of the metal cylindrical pin inserter 6 having a circular hole into which the hollow connecting pin 3 is inserted, and is fixed by welding. A hexagonal nut 5 is accommodated in a hexagonal nut storage hole 29 provided on the opening side of the cap 28, and a recess 30 for inserting a threaded rod end is provided at the back of the cap 28. A play gap is provided between the
Further, an anchor member 31 is fixed to the cylindrical pin insertion tool 6 by welding, and the cylindrical pin insertion tool 6 to which the anchor member 31 and the cap 28 are fixed,
The cylindrical pin insertion tool 6 is embedded and fixed in the other connecting end of the concrete member 1, and the tip surface of the cylindrical pin insertion tool 6 is disposed on substantially the same plane as the end surface 32 of the concrete member 1.
次に第４図ないし第６図に示す締結装置付きコ
ンクリート部材１を締結する場合の操作手順につ
いて説明する。 Next, the operating procedure for fastening the concrete member 1 with a fastening device shown in FIGS. 4 to 6 will be described.
まず第１図に示すように、一方のコンクリート
部材１Ａの中空連結ピン３を他方のコンクリート
部材１Ｂの筒状ピン挿込具６に対向させた状態
で、前記一方のコンクリート部材１Ａを前記他方
のコンクリート部材１Ｂに向かつて移動するか、
あるいは前記他方のコンクリート部材１Ｂを前記
一方のコンクリート部材１Ａに向かつて移動し
て、第２図に示すように、中空連結ピン３の突出
部を筒状ピン挿込具６に嵌入させる。 First, as shown in FIG. 1, with the hollow connecting pin 3 of one concrete member 1A facing the cylindrical pin insertion tool 6 of the other concrete member 1B, the one concrete member 1A is inserted into the other concrete member 1A. Move toward concrete member 1B, or
Alternatively, the other concrete member 1B is moved toward the one concrete member 1A, and the protrusion of the hollow connecting pin 3 is fitted into the cylindrical pin insertion tool 6, as shown in FIG.
次に螺杆４をねじ戻し方向に回転して保持用ナ
ツト２７から離脱したのち、螺杆４の基端部に座
金３３を嵌合すると共に、螺杆４の基端側の雄ね
じ部２６に袋ナツトからなる係止頭部７を螺合固
定し、次いでスパナ等の回動工具を凹部２内に挿
入して係止頭部７に係合し、その回動工具により
係止頭部７を介して螺杆４を回動することによ
り、その螺杆４をナツト５に螺合して緊締し、そ
の螺杆４とナツト５および係止頭部７とにより各
コンクリート部材１Ａ，１Ｂを締結する。 Next, after rotating the screw rod 4 in the unscrewing direction and separating it from the holding nut 27, the washer 33 is fitted to the base end of the screw rod 4, and the male threaded portion 26 on the base end side of the screw rod 4 is inserted from the cap nut. The locking head 7 is screwed and fixed, and then a rotating tool such as a spanner is inserted into the recess 2 to engage the locking head 7, and the rotating tool is used to rotate the locking head 7 through the locking head 7. By rotating the screw rod 4, the screw rod 4 is screwed into the nut 5 and tightened, and each concrete member 1A, 1B is fastened by the screw rod 4, the nut 5, and the locking head 7.
第８図ないし第１０図はこの発明の第２実施例
を示すものであつて、連結すべき一方のコンクリ
ート部材１Ａの連結端部に、内部に雌ねじ部９を
備えている金属製中空連結ピン３の基端側部分が
埋込固定され、連結すべき他方のコンクリート部
材１Ｂの連結端部に、そのコンクリート部材１Ｂ
の表面に向かつて開口する凹部２が設けられると
共に、その凹部２およびコンクリート部材１Ｂの
端面に開口する金属製筒状ピン挿込具６が埋込固
定されているが、その他の構成は第１実施例の場
合と同様である。 FIGS. 8 to 10 show a second embodiment of the present invention, in which a metal hollow connecting pin is provided at the connecting end of one of the concrete members 1A to be connected, and is provided with an internally threaded portion 9. The proximal end portion of the concrete member 1B is embedded and fixed at the connecting end of the other concrete member 1B to be connected.
A recess 2 is provided that opens toward the surface of the concrete member 1B, and a metal cylindrical pin insertion tool 6 that opens in the recess 2 and the end face of the concrete member 1B is embedded and fixed. This is the same as in the embodiment.
第２実施例の場合は、各コンクリート部材１
Ａ，１Ｂを締結するとき、螺杆４の雄ねじ部８を
金属製中空連結ピン３の雌ねじ部９に螺合する
が、その他の操作は第１実施例の場合と同様であ
る。 In the case of the second embodiment, each concrete member 1
When fastening A and 1B, the male threaded part 8 of the screw rod 4 is screwed into the female threaded part 9 of the metal hollow connecting pin 3, but other operations are the same as in the first embodiment.
この発明を実施する場合、ナツト５または雌ね
じ部９に対する螺杆４の先端の嵌合を容易にする
ために、第１１図に示すように、螺杆４における
雄ねじ部８の先端部に先細りのテーパー外面３４
を設けるか、あるいはナツト５における雌ねじの
先端部および金属製中空連結ピン３における雌ね
じ部９の先端部に、端縁に向かつて拡大するテー
パー内面３５を設けてもよい。また前記テーパー
外面３４およびテーパー内面３５の双方を設けて
もよい。 When carrying out this invention, in order to facilitate the fitting of the tip of the screw rod 4 into the nut 5 or the female threaded portion 9, as shown in FIG. 34
Alternatively, the tip of the female thread in the nut 5 and the tip of the female thread 9 in the hollow metal connecting pin 3 may be provided with a tapered inner surface 35 that widens toward the edge. Further, both the tapered outer surface 34 and the tapered inner surface 35 may be provided.
第１２図に示すように、前記螺杆４における基
端側の雄ねじ部２６に係止用ナツト３６とその係
止用ナツト３６を螺杆４に固定するためのロツク
ナツト３７とを螺合し、その係止用ナツト３６お
よびロツクナツト３７により係止頭部７を構成し
てもよい。また前記中空連結ピン３、ナツト５、
筒状ピン挿込具６および係止頭部７は例えば鋼材
により製作される。 As shown in FIG. 12, a locking nut 36 and a lock nut 37 for fixing the locking nut 36 to the screw rod 4 are screwed into the male threaded portion 26 on the proximal end side of the screw rod 4, and the lock nut 37 is screwed into the screw rod 4. The locking head 7 may be constituted by a locking nut 36 and a locking nut 37. In addition, the hollow connecting pin 3, the nut 5,
The cylindrical pin insertion tool 6 and the locking head 7 are made of steel, for example.
前記実施例のように、中空連結ピン３の先端部
外周に先細りのテーパー面２３を設けておけば、
筒状ピン挿込具６に対する中空連結ピン３の埋込
みを容易に行なうことができる。また前記実施例
の場合は、螺杆４を中空連結ピン３の先端から凹
部２内に向かつて挿入することができるので、凹
部２における螺杆長手方向の巾が小さくても、螺
杆４を中空連結ピン３に挿通することができると
共に、凹部２内に螺杆４に係止頭部７を取付ける
ことができる。 If the tapered surface 23 is provided on the outer periphery of the tip of the hollow connecting pin 3 as in the above embodiment,
The hollow connecting pin 3 can be easily embedded into the cylindrical pin insertion tool 6. Further, in the case of the above embodiment, since the screw rod 4 can be inserted from the tip of the hollow connecting pin 3 into the recess 2, even if the width in the longitudinal direction of the screw rod in the recess 2 is small, the screw rod 4 can be inserted into the hollow connecting pin 3. 3, and the locking head 7 can be attached to the screw rod 4 within the recess 2.
この発明は、前述のように構成されているの
で、以下に記載する効果を奏する。
Since this invention is configured as described above, it produces the effects described below.
単に一方のコンクリート部材１Ａの端面から突
出している中空連結ピン３を他方のコンクリート
部材１Ｂに埋込固定されている筒状ピン挿込具６
に嵌入するだけで、各コンクリート部材１Ａ，１
Ｂを所定の相対的位置に保持することができ、そ
のため螺杆４の螺合によるコンクリート部材１
Ａ，１Ｂの締結操作を容易に行なうことができ、
かつ曲げ変形し易い継手板を使用していないの
で、コンクリート部材１Ａ，１Ｂの締結部の引張
強度およびせん断強度を大きくすることができ、
さらに金属材料で外部に露出している部分は螺杆
４の頭部付近だけであるので、締結装置の防食性
が優れており、また各コンクリート部材１Ａ，１
Ｂの連結端部のうち、一方のコンクリート部材に
のみ凹部２を設けるだけでよいので、コンクリー
ト部材の配筋上有利であると共に経済設計を行な
うことができる。 A cylindrical pin insertion tool 6 that simply embeds and fixes the hollow connecting pin 3 protruding from the end face of one concrete member 1A into the other concrete member 1B.
Each concrete member 1A, 1
B can be held in a predetermined relative position, so that the concrete member 1 can be held in a predetermined relative position.
The fastening operation of A and 1B can be easily performed,
In addition, since a joint plate that is easily bent and deformed is not used, the tensile strength and shear strength of the joint of the concrete members 1A and 1B can be increased,
Furthermore, since the only part of the metal material exposed to the outside is near the head of the screw rod 4, the fastening device has excellent corrosion resistance, and each concrete member 1A, 1
Since it is only necessary to provide the recess 2 in one of the connecting ends of the concrete member B, this is advantageous in terms of reinforcement of the concrete member, and economical design can be achieved.
第１図ないし第６図はこの発明の第１実施例を
示すものであつて、第１図は締結装置を分離して
示す縦断正面図、第２図は締結装置における中空
連結ピンを筒状ピン挿込具に嵌入した状態を示す
縦断正面図、第３図はコンクリート部材の締結を
完了した状態を示す縦断正面図、第４図は第１実
施例において用いられる締結装置付きコンクリー
ト部材を示す一部切欠斜視図、第５図はその一部
を拡大して示す一部切欠縦断正面図、第６図は第
５図のＡ−Ａ線拡大断面図、第７図は係止頭部を
取付けた螺杆の一部縦断側面図である。第８図な
いし第１０図はこの発明の第２実施例を示すもの
であつて、第８図は締結装置を分離して示す縦断
正面図、第９図は締結装置における中空連結ピン
を筒状ピン挿込具に嵌入した状態を示す縦断正面
図、第１０図はコンクリート部材の締結を完了し
た状態を示す縦断正面図である。第１１図は雄ね
じ部の先端および雌ねじ部の先端にテーパーを形
成した状態を示す縦断側面図、第１２図は係止頭
部付き螺杆の他の例を示す側面図である。第１３
図は従来の継手金具付きコンクリートセグメント
を示す斜視図、第１４図はその一部を示す縦断正
面図、第１５図はその継手金具付きコンクリート
セグメントをボルトナツトにより締結した状態を
示す正面図、第１６図はセグメント間に作用する
引張力により継手金具が変形した状態を示す正面
図である。第１７図はリブ付きコンクリートセグ
メントの斜視図、第１８図はそのリブ付きコンク
リートセグメントをボルトナツトにより締結した
状態を示す正面図である。
図において、１はコンクリート部材、２は凹
部、３は金属製中空連結ピン、４は螺杆、５はナ
ツト、６は金属製筒状ピン挿込具、７は係止頭
部、８は雄ねじ部、９は雌ねじ部、２３はテーパ
ー面、２５はアンカー部材、２６は雄ねじ部、２
７は保持用ナツト、２８は金属製キヤツプ、２９
はナツト収納用６角形孔、３１はアンカー部材、
３４はテーパー外面、３５はテーパー内面、３６
は係止用ナツト、３７はロツクナツトである。
1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional front view showing the fastening device separated, and FIG. 2 shows a hollow connecting pin in the fastening device in a cylindrical shape. Fig. 3 is a vertical sectional front view showing the state in which the concrete member is fitted into the pin insertion tool, Fig. 3 is a longitudinal sectional front view showing the state in which the concrete member has been fastened, and Fig. 4 shows the concrete member with the fastening device used in the first embodiment. Fig. 5 is a partially cutaway perspective view, Fig. 5 is a partially cutaway longitudinal sectional front view showing an enlarged view of the part, Fig. 6 is an enlarged sectional view taken along line A-A in Fig. 5, and Fig. 7 shows the locking head FIG. 3 is a partially vertical side view of the attached screw rod. 8 to 10 show a second embodiment of the present invention, in which FIG. 8 is a longitudinal sectional front view showing the fastening device separated, and FIG. 9 shows a hollow connecting pin in the fastening device in a cylindrical shape. FIG. 10 is a longitudinal sectional front view showing the state in which the pin insertion tool is fitted, and FIG. 10 is a longitudinal sectional front view showing the state in which the concrete member has been fastened. FIG. 11 is a longitudinal sectional side view showing a state in which tapers are formed at the tips of the male threaded portion and the female threaded portion, and FIG. 12 is a side view showing another example of the screw rod with a locking head. 13th
Figure 14 is a perspective view showing a conventional concrete segment with joint fittings, Fig. 14 is a vertical sectional front view showing a part thereof, Fig. 15 is a front view showing the concrete segment with fitting fittings fastened with bolts and nuts, and Fig. 16 is a front view showing the concrete segment with fitting fittings. The figure is a front view showing a state in which the joint fitting is deformed due to the tensile force acting between the segments. FIG. 17 is a perspective view of the ribbed concrete segment, and FIG. 18 is a front view showing the ribbed concrete segment fastened with bolts and nuts. In the figure, 1 is a concrete member, 2 is a recess, 3 is a metal hollow connecting pin, 4 is a screw rod, 5 is a nut, 6 is a metal cylindrical pin inserter, 7 is a locking head, and 8 is a male screw part , 9 is a female threaded portion, 23 is a tapered surface, 25 is an anchor member, 26 is a male threaded portion, 2
7 is a holding nut, 28 is a metal cap, 29
is a hexagonal hole for storing a nut, 31 is an anchor member,
34 is a tapered outer surface, 35 is a tapered inner surface, 36
is a locking nut, and 37 is a lock nut.
Claims (1)
結端部に、そのコンクリート部材１Ａの表面に向
かつて開口する凹部２が設けられると共に、その
凹部２に連通している金属製中空連結ピン３の基
端側部分が埋込固定され、その中空連結ピン３に
螺杆４が挿入され、連結すべき他方のコンクリー
ト部材１Ｂの連結端部に、ナツト５を回動不能に
保持している金属製筒状ピン挿込具６が埋込固定
され、前記コンクリート部材１Ａの端面から突出
している中空連結ピン３の突出部が前記筒状ピン
挿込具６に嵌入され、前記凹部２内において螺杆
４の基端部に係止頭部７が設けられ、前記螺杆４
の先端の雄ねじ部８は前記ナツト５に螺合され、
そのナツト５に螺合された螺杆４とその螺杆４に
設けられた係止頭部７とにより各コンクリート部
材１Ａ，１Ｂが締付連結されているコンクリート
部材の締結装置。 ２ 連結すべき一方のコンクリート部材１Ａの連
結端部に、内部に雌ねじ部９を備えている金属製
中空連結ピン３の基端側部分が埋込固定され、連
結すべき他方のコンクリート部材１Ｂの連結端部
に、そのコンクリート部材１Ｂの表面に向かつて
開口する凹部２が設けられると共に、その凹部２
およびコンクリート部材１Ｂの端面に開口する金
属製筒状ピン挿込具６が埋込固定され、前記コン
クリート部材１Ａの端面から突出している中空連
結ピン３の突出部が前記筒状ピン挿込具６に嵌入
され、前記凹部２内において螺杆４の基端部に係
止頭部７が設けられ、前記螺杆４の先端の雄ねじ
部８は前記金属製中空連結ピン３の雌ねじ部９に
螺合され、その雌ねじ部９に螺合された螺杆４
と、その螺杆４に設けられた係止頭部７とにより
各コンクリート部材１Ａ，１Ｂが締付連結されて
いるコンクリート部材の締結装置。[Scope of Claims] 1. A recess 2 that opens toward the surface of the concrete member 1A is provided at the connecting end of one of the concrete members 1A to be connected, and a metal hollow that communicates with the recess 2. The base end portion of the connecting pin 3 is embedded and fixed, the screw rod 4 is inserted into the hollow connecting pin 3, and the nut 5 is held unrotatably at the connecting end of the other concrete member 1B to be connected. A metal cylindrical pin insertion tool 6 is embedded and fixed therein, and the protruding part of the hollow connecting pin 3 protruding from the end face of the concrete member 1A is fitted into the cylindrical pin insertion tool 6, and the protruding part of the hollow connecting pin 3 is inserted into the recess 2. A locking head 7 is provided at the base end of the screw rod 4, and the screw rod 4
A male threaded portion 8 at the tip of is screwed into the nut 5,
This is a fastening device for concrete members in which each concrete member 1A, 1B is tightened and connected by a screw rod 4 screwed into the nut 5 and a locking head 7 provided on the screw rod 4. 2. The proximal end portion of the metal hollow connecting pin 3, which has an internally threaded internal thread 9, is embedded and fixed in the connecting end of one of the concrete members 1A to be connected, and the other concrete member 1B to be connected is fixed. A recess 2 that opens toward the surface of the concrete member 1B is provided at the connecting end, and the recess 2
A metal cylindrical pin insertion tool 6 that opens at the end surface of the concrete member 1B is embedded and fixed, and the protruding portion of the hollow connecting pin 3 that protrudes from the end surface of the concrete member 1A is connected to the cylindrical pin insertion tool 6. A locking head 7 is provided at the proximal end of the screw rod 4 in the recess 2, and a male threaded portion 8 at the tip of the screw rod 4 is screwed into the female screw portion 9 of the metal hollow connecting pin 3. , a screw rod 4 screwed into the female thread part 9
A fastening device for concrete members in which each concrete member 1A, 1B is tightened and connected by a locking head 7 provided on the screw rod 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152369A JPH028498A (en) | 1988-06-22 | 1988-06-22 | Clamper for concrete part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152369A JPH028498A (en) | 1988-06-22 | 1988-06-22 | Clamper for concrete part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH028498A JPH028498A (en) | 1990-01-11 |
| JPH0579799B2 true JPH0579799B2 (en) | 1993-11-04 |
Family
ID=15539022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63152369A Granted JPH028498A (en) | 1988-06-22 | 1988-06-22 | Clamper for concrete part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH028498A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0422597U (en) * | 1990-06-18 | 1992-02-25 | ||
| JPH0674594U (en) * | 1993-03-31 | 1994-10-21 | トピー工業株式会社 | Elastic track for endless track |
| US5551507A (en) * | 1995-03-17 | 1996-09-03 | Russell A Division Of Ardco, Inc. | Finned heat exchanger support system |
| KR100529287B1 (en) | 1998-06-09 | 2005-11-17 | 소니 가부시끼 가이샤 | Robot and method of its attitude control |
| JP2005226359A (en) * | 2004-02-13 | 2005-08-25 | Taisei Corp | Joining method for segments and joint structure |
| GB2515317A (en) * | 2013-06-19 | 2014-12-24 | Buchan Concrete Solutions Ltd | Improvements in or Relating to Panel Connections |
| CN109184738B (en) * | 2018-08-30 | 2020-04-14 | 上海隧道工程有限公司 | Pre-buried pin slot structure for connecting shear pins on tunnel pipe piece and construction method thereof |
-
1988
- 1988-06-22 JP JP63152369A patent/JPH028498A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028498A (en) | 1990-01-11 |
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