JPS6038519B2 - concrete segment - Google Patents
concrete segmentInfo
- Publication number
- JPS6038519B2 JPS6038519B2 JP56136230A JP13623081A JPS6038519B2 JP S6038519 B2 JPS6038519 B2 JP S6038519B2 JP 56136230 A JP56136230 A JP 56136230A JP 13623081 A JP13623081 A JP 13623081A JP S6038519 B2 JPS6038519 B2 JP S6038519B2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- fittings
- concrete
- segment
- reinforcing bars
- 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Description
【発明の詳細な説明】
この発明はコンクリートセグメント、主としてトンネル
覆工用コンクリートセグメントに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a concrete segment, primarily a concrete segment for tunnel lining.
そして、その目的はコンクリートセグメント（以下セグ
メントという。And its purpose is concrete segment (hereinafter referred to as segment).
）の周方向および中方向接合端部に鋳鉄主として延性鋳
鉄製の継手金具を使用することにより隣接するセグメン
トの接合強度の増加を図るとともに、継手金具の製造を
簡易化して能率よく容易に製造できるセグメントを提供
することにある。以下この発明を図示する実施例によっ
て説明する。) By using fittings mainly made of ductile cast iron at the circumferential and mid-direction joint ends of the joints, the joint strength of adjacent segments can be increased, and the manufacturing of the fittings can be simplified and manufactured efficiently and easily. The goal is to provide segments. The present invention will be explained below with reference to illustrated embodiments.
第１図〜第６図に示すように、セグメントＩは所定の曲
率で円弧状に轡曲したプレキャストコンクリート版から
なるコンクリート部材２と、その周方向および中方向接
合端部に取付けられた継手金具３，３′と、コンクリ−
卜部材２の内部に埋設された鉄骨部材４およ・び鉄筋５
とから構成され、継手金具３の中央部にはボルト挿通孔
６が穿設されている。コンクリート部材２の内周面側の
周万向および中方向接合端部に凹欠部７が所定間隔で複
数設けられ、その凹欠部７の接合端両側に開□する閉口
部に、コンクリート部材２の内周面から所定厚枕み込む
ように継手金具３，３′が取付けられている。As shown in Figures 1 to 6, segment I consists of a concrete member 2 made of a precast concrete slab curved in an arc shape with a predetermined curvature, and joint metal fittings attached to the joint ends in the circumferential direction and the middle direction. 3, 3' and concrete
Steel frame members 4 and reinforcing bars 5 buried inside the frame member 2
A bolt insertion hole 6 is formed in the center of the joint fitting 3. A plurality of concave notches 7 are provided at predetermined intervals on the circumferential and middle joint ends of the inner peripheral surface of the concrete member 2, and the concrete member Joint fittings 3, 3' are attached so as to extend a predetermined thickness from the inner circumferential surface of 2.
またコンクリート部材２の内周面側綾部には、セグメン
トを接合したとき隣接する接合端部間に目地材充填用の
凹溝を形成するように切欠部８が設けられている。コン
クリート部材２の周方向およびあるいは中方向接合端部
の継手金具３，３′は延性鋳鉄製のものを使用する。Further, a notch 8 is provided in the inner circumference side twill portion of the concrete member 2 so as to form a groove for filling a joint material between adjacent joint end portions when the segments are joined. The joint fittings 3, 3' at the circumferential and/or intermediate joint ends of the concrete member 2 are made of ductile cast iron.
そして、前記接合端部のうち比較的応力の集中しやすい
のは周方向接合端部であるので少なくとも周方向接合端
部の継手金具３には延性鋳鉄のものを使用し、他の継手
金具３は普通鋼製のものを使用するのが好ましい。鉄骨
部材４は、コンクリート部村２と同一の曲率で轡曲した
２枚平行に上下に相対向した平鋼９と、その間に鉄骨部
材４の長さ方向に間隔を覆いて取付けられた間隔保持材
１０とから構成され、その両端部に周方向接合端部の継
手金具３がアンカー鉄筋１１および補助鉄筋１２を介し
て溶接により固定されている。Among the joint ends, stress is relatively likely to concentrate at the circumferential joint ends, so at least the joint fittings 3 at the circumferential joint ends are made of ductile cast iron, and the other joint fittings 3 are made of ductile cast iron. It is preferable to use one made of ordinary steel. The steel frame member 4 consists of two parallel flat bars 9 that are curved with the same curvature as the concrete section 2 and vertically opposed to each other, and a spacer 9 installed between them to cover the interval in the length direction of the steel frame member 4. The joint fittings 3 at the circumferential joint ends are fixed to both ends thereof by welding via anchor reinforcing bars 11 and auxiliary reinforcing bars 12.
補助鉄筋１２は先端部を釣形状に折曲させ、その折曲部
をアンカー鉄筋１１に掛合させて熔着するのが好ましい
。継手金具３，３′は第７図〜第９図に示す態様のもの
であって、その両側部にＵ字形に折曲したアンカー鉄筋
１ １，１ １のＵ字形折曲部係止できるように単純な
アンカ筋の取付手段が形成されたものを使用する。It is preferable that the tip of the auxiliary reinforcing bar 12 is bent into a fishing shape, and the bent part is engaged with the anchor reinforcing bar 11 and welded. The joint fittings 3, 3' are of the form shown in Figs. 7 to 9, and have U-shaped bent portions on both sides of the anchor reinforcing bars 11, 11 bent in a U-shape. A simple anchor rod attachment means is used.
第７図ａ，ｂにおいて継手金具３ａは本体部１３の両側
部１３′を厚肉に形成し、両側部１３′の外側面にアン
カー鉄筋１ １ａの折曲部が掛合可能な凹溝１４を設け
たものである。In FIGS. 7a and 7b, the joint fitting 3a has both side parts 13' of the main body part 13 formed thick, and grooves 14 on the outer surfaces of the both sides 13', into which the bent part of the anchor reinforcing bar 11a can be engaged. It was established.
第８図における継手金具３ｂは本体部１３の両側面にア
ンカー鉄筋１１ａの折曲部が掛合可能な毅部１９を設け
たものであり、第９図ａ，ｂに示す金具３ｃは３ｂの段
部１９の外周面を断面半円状とし、アンカー鉄筋１１ａ
の納まりを良くしたものである。The joint fitting 3b shown in FIG. 8 has a rigid part 19 on both sides of the main body 13, into which the bent part of the anchor reinforcing bar 11a can be engaged, and the fitting 3c shown in FIGS. 9a and 9b has a step of 3b. The outer peripheral surface of the portion 19 has a semicircular cross section, and the anchor reinforcing bar 11a
It has a better fit.
なお、アンカー鉄筋１１，１１ａは丸鋼、異形鉄筋ある
いはフラットなスチールプレートを使用してもよい。Note that the anchor reinforcing bars 11 and 11a may be round steel, deformed reinforcing bars, or flat steel plates.
以上の構成において、セグメント１の成形に際しては、
鉄骨部材４および鉄筋５を予め編成して継手金具３を取
付けたのち、型枠内に配置するか、または型枠内におい
て連結組立て、必要に応じて補強鉄筋、金網板１９等を
取付けて補強する。In the above configuration, when molding segment 1,
After organizing the steel members 4 and reinforcing bars 5 in advance and attaching the joint fittings 3, they are placed in the formwork or connected and assembled within the formwork, and reinforced by attaching reinforcing bars, wire mesh plates 19, etc. as necessary. do.
次いでモルタル、コンクリートを充填して硬化後脱型す
る。トンネル等の覆工に際しては、第１０図に示すよう
に、トンネルの内周面に沿って順次接合する。Next, it is filled with mortar and concrete and removed from the mold after hardening. When lining a tunnel or the like, as shown in FIG. 10, the joints are sequentially joined along the inner peripheral surface of the tunnel.
接合に当っては、第１１図、第１２図に示すようにそれ
ぞれ対向する周方向および中方向接合端部における継手
金具３，３′のボルト挿通孔６にボルト２１を一体に挿
通してトット２２で締結する。次いで、各接合端部の切
欠部８，８間に形成された凹溝２３に目地材２４を充填
して施工を完了する。For joining, as shown in FIGS. 11 and 12, the bolts 21 are integrally inserted into the bolt insertion holes 6 of the joint fittings 3 and 3' at the opposing circumferential and middle joint ends, respectively. It concludes on 22. Next, the groove 23 formed between the notches 8 and 8 of each joint end is filled with a joint material 24 to complete the construction.
この発明は以上の構成からなり、コンクリートセグメン
トの継手金具として鋳鉄製の継手金具を使用したことに
より、接合時におけるセグメントの接合強度を増加する
ことができ、しかも継手金具は鋳造しやすくコ字状に形
成し、その側面に単純な取付部を形成したものであるか
ら、セグメントの製造の能率を向上することができる。This invention has the above-mentioned configuration, and by using cast iron fittings as fittings for concrete segments, it is possible to increase the joint strength of the segments at the time of joining, and the fittings are easy to cast and have a U-shaped shape. Since the segment is formed with a simple mounting portion formed on its side surface, the efficiency of manufacturing the segment can be improved.
すなわち、鋳鉄製の継手金具は、従来のように鋼板を溶
接により組立てて形成する必要がなく、予め一体に成型
できるので剛性の高いものとなり、さらに型枠内で継手
金具と鉄骨部村とはアンカー筋をＵ字形に折曲して継手
金具の取付手段により迅速に確実に連結できると共に、
また継手金具の製造に要する手間を省力化することがで
きるので能率の向上が望める。そして継手金具の内、少
なくとも周万向接合機部に設けた継手金具は、コンクリ
ートに埋設された鉄骨部村にアンカー鉄筋および補助鉄
筋を介して固定されているので、この種コンクリートセ
グメントにおいてとくに応力の集中しやすい周万向接合
端部における接合が強固におこなわれる。In other words, cast iron fittings do not need to be formed by assembling steel plates by welding as in the past, and can be formed into one piece in advance, resulting in high rigidity. By bending the anchor bar into a U-shape and attaching the joint fittings, the connection can be made quickly and reliably, and
Further, since the labor required for manufacturing the joint fittings can be saved, efficiency can be improved. Of the joint fittings, at least the joint fittings installed in the circumferential joint section are fixed to the steel frame section buried in concrete via anchor reinforcing bars and auxiliary reinforcing bars, so this type of concrete segment is especially susceptible to stress. The joint is strong at the ends of the circumferential joint, where it is easy to concentrate.
なお、この発明のセグメントはヒューム管あるいはその
他の地下埋設物築造用部材と利用可能である。Incidentally, the segment of the present invention can be used as a Hume pipe or other underground construction member.
第１図はセグメントの構成を示す全体斜視図、第２図は
セグメントの周万向および中方向接合織部に鋳鉄製継手
金具を取付けた状態を示す正面半断面図、第３図はその
平面半断面図、第４図は周方向接合端部にのみ鋳鉄製継
手金具を取付け、他は普通鋼製継手金具を取付けた状態
を示す正面半断面図、第５図はその平面半断面図、第６
図は継手金具の取付状態および鉄骨部材の構成を示す部
分拡大斜視図、第７図乃至第９図は継手金具の実施例を
示す斜視図および断面図、第１０図はセグメントの接合
状態を示す立面図、第１１図はその部分拡大図、第１２
図はその斜視図である。
１……セグメント、２……コンクリート部材、３・…・
・鋳鉄製継手金具、３′・・…・普通鋼製継手金臭、４
・・・・・・鉄骨部村、５・・・・・・鉄筋、６・・・
・・・ボルト挿通孔、７・・・・・・凹欠部、８・・・
・・・切欠部、９・・…・平鋼、１０・・・・・・間隔
保持材、１１，１１ａ・・．・・・アンカー鉄筋、１２
・・・・・・補助鉄筋、１３・・・・・・本体部、１３
′……両側部、１４・・・…凹溝、１５・・・…段部、
１６・・・・・・異形鉄筋、１７・・・・・・係合孔、
１８・・・・・・アンカー鉄筋、１９・・・・・・金網
板、２１・・・・・・ボルト、２２・・…・ナット、２
３・・・・・・凹溝、２４・・・・・・目地村。
第１図
第２図
第３図
第４図
第７図
第８図
第５図
第６図
第９図
第１０図
第１１図
第１２図Fig. 1 is an overall perspective view showing the structure of the segment, Fig. 2 is a front half-sectional view showing cast iron fittings attached to the circumferential and middle joint weaves of the segment, and Fig. 3 is a plan half-sectional view of the segment. 4 is a front half-sectional view showing a state in which cast iron fittings are attached only to the circumferential joint end and ordinary steel fittings are attached to the other parts, and FIG. 5 is a half-sectional plan view of the same. 6
The figure is a partially enlarged perspective view showing the mounting state of the joint fittings and the structure of the steel frame member, Figures 7 to 9 are perspective views and sectional views showing examples of the joint fittings, and Fig. 10 shows the joined state of the segments. Elevation view, Figure 11 is a partially enlarged view, Figure 12
The figure is a perspective view thereof. 1...Segment, 2...Concrete member, 3...
・Cast iron fittings, 3'... Ordinary steel fittings, golden smell, 4
...Steel frame village, 5...Reinforcement bar, 6...
... Bolt insertion hole, 7 ... Recessed part, 8 ...
... Notch, 9... Flat steel, 10... Spacing member, 11, 11a... ...Anchor reinforcing bar, 12
..... Auxiliary reinforcing bar, 13 ..... Main body part, 13
'... Both sides, 14... Concave groove, 15... Step part,
16... Deformed reinforcing bar, 17... Engagement hole,
18... Anchor reinforcing bar, 19... Wire mesh plate, 21... Bolt, 22... Nut, 2
3...concave groove, 24...meji village. Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 8 Figure 5 Figure 6 Figure 9 Figure 10 Figure 11 Figure 12
Claims (1)
合端部に凹欠部を設け、接合端面側における前記凹欠部
の開口部に、鋳鉄継手金具をボルト挿通孔を穿設した本
体部が面一となるように埋設して取付け、また継手金具
の両側部にアンカー鉄筋のＵ字形折曲部を係止する取付
手段を形成し、これにＵ字形に折曲したアンカー鉄筋を
固定し、一方コンクリート部材内には同一の曲率で湾曲
した鉄骨を埋設し、前記継手金具の内、少なくとも周方
向の接合端部に設けた継手金具を前記アンカー鉄筋およ
び補助鉄筋を介して鉄骨に固定してなることを特徴とす
るコンクリートセグメント。1. A main body with a concave notch provided at the joint end on the inner peripheral surface side of a concrete member curved in an arc shape, and a bolt insertion hole for a cast iron joint fitting in the opening of the concave notch on the joint end surface side. The U-shaped bent part of the anchor reinforcing bar is fixed to the fixing means to which the U-shaped bent part of the anchor reinforcing bar is fixed on both sides of the joint fitting. On the other hand, a steel frame curved with the same curvature is embedded in the concrete member, and among the joint fittings, the joint fittings provided at least at the joint ends in the circumferential direction are fixed to the steel frame via the anchor reinforcing bars and auxiliary reinforcing bars. A concrete segment that is characterized by its unique characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56136230A JPS6038519B2 (en) | 1981-08-31 | 1981-08-31 | concrete segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56136230A JPS6038519B2 (en) | 1981-08-31 | 1981-08-31 | concrete segment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5774500A JPS5774500A (en) | 1982-05-10 |
| JPS6038519B2 true JPS6038519B2 (en) | 1985-09-02 |
Family
ID=15170322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56136230A Expired JPS6038519B2 (en) | 1981-08-31 | 1981-08-31 | concrete segment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038519B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2521922Y2 (en) * | 1989-11-17 | 1997-01-08 | 石川島建材工業株式会社 | Embedded metal fittings for concrete segment joints |
| JP6898626B2 (en) * | 2015-07-09 | 2021-07-07 | 大和ハウス工業株式会社 | Precast concrete foundation |
| JP6594683B2 (en) * | 2015-07-09 | 2019-10-23 | 大和ハウス工業株式会社 | Precast concrete foundation |
-
1981
- 1981-08-31 JP JP56136230A patent/JPS6038519B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5774500A (en) | 1982-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3623899B2 (en) | Joint structure of concrete slab and steel web in composite box girder | |
| EA002344B1 (en) | Cellular stirrups and ties for structural members | |
| JP3847072B2 (en) | Synthetic segment | |
| KR101202063B1 (en) | A fabrication type lattice girder | |
| KR102069419B1 (en) | Composite pile internally reinforced by steel tube | |
| JPS6038519B2 (en) | concrete segment | |
| USRE32621E (en) | Frame girder for underground drift and shaft construction | |
| JPS5818518B2 (en) | concrete segment | |
| GB1585770A (en) | Concrete segment | |
| JP3330664B2 (en) | Segment for tunnel lining | |
| JPS5822637B2 (en) | tunnel segment | |
| JP6978901B2 (en) | Joining structure and joining method of precast concrete beam members | |
| JPS6219749Y2 (en) | ||
| JPH0545728B2 (en) | ||
| JPS5927096A (en) | Concrete segment | |
| JPS5913640B2 (en) | concrete segment | |
| JP3570351B2 (en) | How to fix the segment joint | |
| JP2004183220A (en) | Pile head joint structure, pile head joint hard ware and its construction method | |
| JP3579333B2 (en) | Floor slab structure and construction method of floor slab | |
| JPH0452279Y2 (en) | ||
| JPH03212599A (en) | Segment | |
| JPH0234319Y2 (en) | ||
| JPH044032Y2 (en) | ||
| JPS6123523Y2 (en) | ||
| JPH036716Y2 (en) |