JPH028498A - Clamper for concrete part - Google Patents
Clamper for concrete partInfo
- Publication number
- JPH028498A JPH028498A JP63152369A JP15236988A JPH028498A JP H028498 A JPH028498 A JP H028498A JP 63152369 A JP63152369 A JP 63152369A JP 15236988 A JP15236988 A JP 15236988A JP H028498 A JPH028498 A JP H028498A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- screw rod
- concrete member
- connecting pin
- recess
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 88
- 239000002184 metal Substances 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 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)
Abstract
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ャ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.
［従来の技術］
従来、プレキャ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１
３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、ポルト挿通孔１１を有
する鋼製継手板１２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）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１
２をそれらにわたって挿通した鋼製ポルト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１
９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に多数のポルト挿通孔１
１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
のポルト挿通孔１１にわたって挿通した鋼製ポルト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。[Prior Art] Conventionally, as a concrete segment, which is one of precast concrete members, and its fastening structure, the first
As shown in FIGS. 3 to 15, a steel joint plate 12 having a port insertion hole 11 is attached to the connecting end of the planar concrete segment 10, and a steel plate 13 for mounting is attached to the joint plate 12.
A steel joint fitting 15 consisting of an anchor reinforcing bar 14 fixed through the concrete segment 10 is embedded and fixed, and a fastening recess 16 is provided inside each joint plate 12 in the concrete segment 10, so that the segments 10 to be connected can be connected to each other. and the steel joint plate 1 in each concrete segment 10.
2 are tightened and connected by a steel port 17 and a steel nut 18 that are inserted across them,
Further, as shown in FIGS. 17 and 18, the peripheral rib 1
9 and a plurality of port insertion holes 1 in said peripheral rib 19 of the concrete segment 21 having intermediate ribs 20.
1 to join the segments 21 to be connected to each other, and to connect each concrete segment 21 to a peripheral rib 19.
A steel port 17 inserted across the port insertion hole 11 of
Also known are those that are tightened and connected using a steel nut 18.
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、各セグメントのポルト挿通孔１１が
合致するように保持した状態で、ポルト１７を各ポルト
挿通孔１１にわたっ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 port insertion hole 11 of each segment matches the other segment, and the port is 17 across each port insertion hole 11, there is a problem in that it is difficult to perform the fastening operation of 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し、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ずる。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 connecting portions 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ったり
セグメントの厚さが大きくなったりしてコスト高になり
、さらに鋼製ポルト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, the peripheral rib 19 and the intermediate rib 20
Since there is a large concave portion 22 between the segments, there are restrictions on the reinforcement arrangement within the segment, resulting in an increase in the amount of reinforcing bars and an increase in the thickness of the segment, resulting in high cost. Both ends of and steel nut 18
Since the metal is 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
表面に向かって開口する凹部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１
Ａ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 a screw rod 4 is inserted into the hollow connecting pin 3 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 in the concrete member 1.
A protruding portion of the hollow connecting pin 3 protruding from the end surface of A is fitted into the cylindrical pin insertion tool 6, and a locking head 7 is provided at the base end of the screw rod 4 in the recess 2, and the screw rod The male screw part 8 at the tip of the screw 4 is screwed into the nut 5, and each concrete member 1A, 1B is tightened by the screw 4 screwed into the nut 5 and the locking head 7 provided on the screw 4. connected.
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の表面に向かって開口する凹部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
れることによっても、同一の目的を達成することができ
る。In addition, the proximal end portion of a metal hollow connecting pin 3 having an internal threaded portion 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 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. , a protruding portion of the hollow connecting pin 3 protruding from the end surface of the concrete member 1A is fitted into the cylindrical pin insertion tool 6, and a locking head 7 is provided at the base end of the screw rod 4 in the recess 2. The male screw 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, and the screw rod 4 screwed into the female screw portion 9 and the lock provided on the screw rod 4 are screwed together. The same objective can also be achieved by tightening and connecting each concrete member 1A, 1B with the head 7.
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における筒状ピン押込具６
に嵌入したのち、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。The hollow connecting pin 3 in one concrete member 1A is inserted into the cylindrical pin pushing tool 6 in the other concrete member 1B.
After fitting into the screw rod 4, a locking head 7 is attached to the base end of the screw rod 4 in the recess 2, and the screw rod 4 is rotated by the locking head 7.
The threaded rod 4 is screwed into a nut 5 provided in the inner part of the cylindrical pin insertion tool 6 or a female threaded portion 9 provided within the hollow connecting pin 3.
〔実施例］ 次にこの発明を図示の例によって詳細に説明する。〔Example] 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を示すものであって、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
面に向かっ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
にアンカ一部材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一部材２５とは、コンクリ−
１・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がら突出している。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, and show one arc-shaped end face side of the arc-shaped concrete member 1. A metal hollow connecting pin, in which a plurality of recesses 2 opening toward the inner surface of the concrete member 1 are provided at the connecting end, that is, one connecting end, and a tapered surface 23 is formed on the outer periphery of the tip. 3 is arranged perpendicularly to the end surface 24 of the concrete member 1, and 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 fixed to the base end side portion of the hollow connecting pin 3. 25 means concrete
1. The hollow connecting pin 3 is embedded and fixed in one connecting end of the member 1, 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 distal end side of the hollow connecting pin 3 protrudes from the end face 24 of the concrete member 1.
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、その保持用ナンド２７により螺杆
４が中空連結ピン３から抜は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 held by the holding nut 27 so as not to be pulled out from the hollow connecting pin 3.
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
属製筒状ピン押込具６の一端部の外側に、金属製キャッ
プ２８の開口端部が嵌合されて溶接により固定され、前
記キャンプ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、かつキャップ
２８の奥部に螺杆端部挿入用凹部３０が設けられ、さら
にキャップ２８とナンド５との間に遊隙が設けられ、ま
た前記筒状ピン押込具６にアンカ一部材３１が溶接によ
り固着され、そのアンカ一部材３１およびキャップ２８
を固着した筒状ピン押込具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、前記筒状ピン押
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 pusher 6 having a circular hole into which the hollow connecting pin 3 is inserted, and is fixed by welding. Nut storage 6 provided on the opening side of the
The hexagonal nut 5 is accommodated in the square hole 29, and a recess 30 for inserting the screw end is provided in the inner part of the cap 28, and a clearance is provided between the cap 28 and the nut 5. An anchor member 31 is fixed to the pin pushing tool 6 by welding, and the anchor member 31 and the cap 28
The cylindrical pin pushing tool 6 to which the cylindrical pin pushing tool 6 is fixed is embedded and fixed in the other connecting end of the concrete member 1, and the tip surface of the cylindrical pin pushing tool 6 is arranged on substantially the same plane as the end surface 32 of the concrete member 1. has been done.
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順序について説明する。Next, the sequence of operations when fastening the concrete member 1 with a fastening device shown in FIGS. 4 to 6 will be explained.
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
ピン押込具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に向が
って移動するが、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に向かって移動
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, one concrete member 1A
With the hollow connecting pin 3 facing the cylindrical pin pushing tool 6 of the other concrete member 1B, the one concrete member 1A is moved toward the other concrete member 1B, or the other concrete member 1A is moved toward the other concrete member 1B. The 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の基端例の雄ねじ部２６に袋ナンドか
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ＬＡ、１Ｂを締結する。Next, rotate the screw rod 4 in the unscrewing direction and tighten the retaining nut 27.
After separating from the screw rod 4, the washer 33 is fitted to the base end of the screw rod 4, and the locking head 7 made of a cap nut is screwed and fixed to the male threaded portion 26 at the base end of the screw rod 4. A rotating tool is inserted into the recess 2 and engaged with the locking head 7, and by rotating the screw rod 4 through the locking head 7 with the rotating tool, the screw rod 4 is attached to the nut 5. They are screwed together and tightened, and each concrete member LA, 1B is fastened by the screw rod 4, nut 5, and 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
のであって、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の表面に向かって開口する凹部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 with an internally threaded part 9 at the connecting end of one of the concrete members 1A to be connected. A recess 2 opening toward the surface of the concrete member 1B is provided at the connecting end of the other concrete member 1B to be connected, and the recess 2 and the concrete member 3 are embedded and fixed. A metal cylindrical pin insertion tool 6 opening in the end face of 1B is embedded and fixed, but the other configurations are the same as in the first embodiment.
第２実施例の場合は、各コンクリート部材１Ａ。In the case of the second embodiment, each concrete member 1A.
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。When fastening 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、端縁に向かって拡大す
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, the eleventh
As shown in the figure, a tapered outer surface 34 is provided at the tip of the male threaded portion 8 of the screw rod 4, or a tapered outer surface 34 is provided at the tip of the female thread of the nut 5 and the hollow metal connecting pin 3.
A tapered inner surface 35 that widens toward the edge may be provided at the tip of the female threaded portion 9 . 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における基端例の雄
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ックナツト３７とを螺合し
、その係止用ナツト３６およびロックナツト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 locking nut 36 are attached to the male threaded portion 26 of the base end of the screw rod 4.
The locking nut 36 and the locking nut 37 may be screwed together to form the locking head 7. In addition, the hollow connecting pin 3
．． The nut 5, cylindrical pin inserter 6, and locking head 7 are made of, for example, steel.
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、筒状ピン押込具
６に対する中空連結ピン３の挿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内に向かっ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内で螺杆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 embodiment described above, the hollow connecting pin 3 can be easily inserted into the cylindrical pin pushing tool 6. Further, in the case of the above embodiment, since the screw rod 4 can be inserted into the recess 2 from the tip of the hollow connecting pin 3, 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に押込
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１Ａ１Ｂ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１Ａ。By simply inserting the hollow connecting pin 3 protruding from the end face of one concrete member 1A into the cylindrical pin insertion tool 6 fixedly pushed into the other concrete member 1B, each concrete member 1A1B can be placed in a predetermined relative position. The concrete member 1A can be held in position by screwing the screw rod 4 together.
１Ｂの締結操作を容易に行なうことができ、かっ曲げ変
形し易い継手板を使用していないので、コンクリ−１・
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
、１Ｂ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
。1B can be easily fastened, and does not use joint plates that are prone to bending and deformation.
The tensile strength and shear strength of the fastening portion of the members 1A and 1B can be increased, and since the only part of the metal material that is 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
, 1B, it is only necessary to provide the recess 2 in one of the concrete members, which is advantageous in terms of reinforcing reinforcement of the concrete member and allows economical design.
第１図ないし第６回はこの発明の第１実施例を示すもの
であって、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回はコンク
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回は第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
のであって、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し部の先
端にテーパーを形成した状態を示す縦断側面図、第１２
図は係止頭部何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
ボルトナンド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はアンカ一部材、２６
は雄ねし部、２７は保持用ナツト、２８は金属製キャッ
プ、２９はナツト収納用６角形孔、３１はアンカ一部材
、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はロックナツトである。
「Ｎ
！１−Figures 1 to 6 show the first embodiment of the present invention, in which Figure 1 is a longitudinal sectional front view showing the fastening device separated, and Figure 2 shows the hollow connecting pin in the fastening device shaped like a cylinder. A longitudinal front view showing a state in which the pin insertion tool is inserted, a third longitudinal front view showing a state in which the concrete member has been fastened, and a fourth drawing showing a concrete member with a fastening device used in the first embodiment. Part 5 is a partially cut away perspective view, Part 5 is a partially cut away longitudinal sectional front view showing an enlarged view of the part, Part 6 is an enlarged sectional view taken along line A-A in Fig. 5, and Part 7 is an enlarged sectional view of 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 vertical sectional side view showing a state in which tapers are formed at the tip of the male threaded portion and the tip of the female threaded portion;
The figure is a side view showing another example of a screw rod without a locking head. Fig. 13 is a perspective view showing a conventional concrete segment with joint fittings, Fig. 14 is a longitudinal sectional front view showing a part thereof,
Figure 15 is a front view showing the concrete segment with joint fittings fastened with bolts, Figure 16
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
27 is a holding nut, 28 is a metal cap, 29 is a hexagonal hole for storing the nut, 31 is an anchor member, 34 is a tapered outer surface, 35 is a tapered inner surface, 36 is a locking nut, 37 is a lock nut. “N!1-
Claims (2)
部に、そのコンクリート部材１Ａの表面に向かって開口
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、ナット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
前記ナット５に螺合され、そのナット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。(1) A recess 2 opening 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 hollow metal connecting pin 3 communicating with the recess 2 is provided. A metal cylinder whose proximal end portion is embedded and fixed, a screw rod 4 is inserted into the hollow connecting pin 3, and a nut 5 is held unrotatably at the connecting end of the other concrete member 1B to be connected. A shaped pin insertion tool 6 is embedded and fixed, and the protruding portion of the hollow connecting pin 3 protruding from the end surface of the concrete member 1A is inserted into the cylindrical pin insertion tool 6.
A locking head 7 is provided at the base 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. A fastening device for concrete members in which concrete members 1A and 1B are tightened and connected by a screw rod 4 and a locking head 7 provided on the screw rod 4.
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の表面に向かって開口する凹部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。(2) A proximal end portion of a metal hollow connecting pin 3 having an 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 to be connected is fixed. A recess 2 that opens toward the surface of the concrete member 1B is provided at the connecting end 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. Then, 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 locking head 7 is attached to the base end of the threaded rod 4 in the recess 2. The male screw 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, and the screw rod 4 screwed into the female screw portion 9 and the engagement provided on the screw rod 4 are screwed together. A fastening device for concrete members in which each concrete member 1A, 1B is fastened and connected by a stop head 7.
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 true JPH028498A (en) | 1990-01-11 |
| JPH0579799B2 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) |
Cited By (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 |
| US6330494B1 (en) | 1998-06-09 | 2001-12-11 | Sony Corporation | 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 |
| CN109184738A (en) * | 2018-08-30 | 2019-01-11 | 上海隧道工程有限公司 | For connecting the pre-buried cotter way structure and its construction method of shear pin on tunnel duct piece |
-
1988
- 1988-06-22 JP JP63152369A patent/JPH028498A/en active Granted
Cited By (8)
| 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 |
| US6330494B1 (en) | 1998-06-09 | 2001-12-11 | Sony Corporation | Robot and method of its attitude control |
| US6567724B2 (en) | 1998-06-09 | 2003-05-20 | Sony Corporation | Robot apparatus and method of controlling the posture thereof |
| 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 |
| CN109184738A (en) * | 2018-08-30 | 2019-01-11 | 上海隧道工程有限公司 | For connecting the pre-buried cotter way structure and its construction method of shear pin on tunnel duct piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0579799B2 (en) | 1993-11-04 |
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