JP2001214405A - Girder for construction work - Google Patents
Girder for construction workInfo
- Publication number
- JP2001214405A JP2001214405A JP2000025499A JP2000025499A JP2001214405A JP 2001214405 A JP2001214405 A JP 2001214405A JP 2000025499 A JP2000025499 A JP 2000025499A JP 2000025499 A JP2000025499 A JP 2000025499A JP 2001214405 A JP2001214405 A JP 2001214405A
- Authority
- JP
- Japan
- Prior art keywords
- girder
- cross
- main girder
- shaped steel
- main
- 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
Landscapes
- Railway Tracks (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は線路下構造物を開削
工法で構築する際に使用する工事桁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction girder used when constructing an under-track structure by an open-cutting method.
【０００２】[0002]
【従来の技術】線路下構造物を開削工法で構築する場
合、軌道を枕木抱き込み式工事桁で仮受けして施工する
方法が考えられる。この工法は、図４に示すように、地
中に仮受杭を打ち込んで仮受桁を施工し、次いで軌道両
側に主桁を施工して既設の枕木間に横桁を渡し、これに
枕木を挿入する枕木抱き込み式工事桁を施工して仮受け
し、線路下を開削して構造物を構築する工法である。2. Description of the Related Art In the case of constructing a structure under a track by an open-cutting method, a method of temporarily receiving a track with a sleeper embracing type work girder and constructing the track can be considered. In this construction method, as shown in Fig. 4, a temporary girder is driven into the ground to form a temporary girder, and then a main girder is installed on both sides of the track, and a cross girder is passed between the existing sleepers. This is a construction method of constructing a structure by installing a sleeper embracing construction girder to insert a bridge, temporarily receiving it, and excavating under the track.
【０００３】図５は工事桁を説明する図で、図５（ａ）
は軌道に直交する断面図、図５（ｂ）は図５（ａ）のＡ
−Ａ断面図である。図示するように、工事桁は主に鋼板
を溶接したＩ形断面の鋼製主桁１、レール３を受ける木
製の並枕木４を挿入するための鋼板を溶接したＵ形断面
の鋼製横桁２および横桁を載せるため主桁の腹板に溶接
された鋼製棚板５で構成されている。図中に溶接部と記
してある部分は溶接箇所であり、また図の左側は支点
部、右側は中間部を示しており、支点部においては主桁
１に端補剛材６が溶接されている。このように主桁、横
桁、および棚板は各々鋼板を溶接し、横桁と棚板の間は
高力ボルトで固定している。FIG. 5 is a view for explaining a construction girder, and FIG.
Is a cross-sectional view orthogonal to the track, and FIG. 5 (b) is A in FIG. 5 (a).
It is -A sectional drawing. As shown in the figure, the construction girder is mainly a steel main girder 1 having an I-shaped cross section welded with a steel plate, a steel cross girder having a U-shaped cross section welded with a steel plate for inserting a row of wooden sleepers 4 receiving a rail 3. 2 and a steel shelf 5 welded to the web of the main girder to place the cross girder. In the figure, the portion described as a welded portion is a welded portion, and the left side of the figure shows a fulcrum portion and the right side shows an intermediate portion. In the fulcrum portion, the end stiffener 6 is welded to the main girder 1. I have. As described above, the main girder, the cross beam, and the shelf are each welded with a steel plate, and the space between the cross beam and the shelf is fixed by high-strength bolts.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来の工事桁
は主桁、横桁、および棚板を各々鋼板を溶接して製作す
る構造となっており、溶接量が多いため、コストが高く
なるほか、溶接ひずみが発生するという問題があった。
本発明は上記課題を解決するためのもので、コストを低
く抑えることができる溶接不要な工事桁を提供すること
を目的とする。However, the conventional construction girder has a structure in which the main girder, the cross girder, and the shelf are each manufactured by welding steel plates, and the amount of welding is large, so that the cost increases. In addition, there is a problem that welding distortion occurs.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a welding girder which does not require welding and can keep costs low.
【０００５】[0005]
【課題を解決するための手段】請求項１の発明は、主桁
と、枕木を挿入するための横桁と、主桁に取り付けられ
て横桁を載せるための棚板とからなる工事桁において、
主桁を形鋼で構成し、横桁を２つのＬ形鋼を重ね合わせ
て枕木を挿入するＵ形断面を形成して高力ボルトで締結
することにより構成し、棚板はＬ形鋼を主桁腹板に高力
ボルトで取り付けて構成したことを特徴とする。請求項
２の発明は、主桁と、枕木を挿入するための横桁と、主
桁に取り付けられて横桁を載せるための棚板とからなる
工事桁において、主桁を形鋼で構成し、横桁をＨ形鋼と
して両端部のフランジの一部を切断加工して構成し、棚
板はＬ形鋼を主桁腹板に高力ボルトで取り付けて構成
し、横桁Ｈ形鋼の内側に枕木を挿入するようにしたこと
を特徴とする。請求項３の発明は、主桁と、横桁と、主
桁に取り付けられて横桁を載せるための棚板とからなる
工事桁において、主桁を形鋼で構成し、横桁をＨ形鋼で
構成し、棚板はＬ形鋼を主桁腹板に高力ボルトで取り付
けて構成し、横桁Ｈ形鋼のフランジとレールを絶縁材を
介して直に絶縁締結装置で締結したことを特徴とする。According to the first aspect of the present invention, there is provided a construction girder comprising a main girder, a cross girder for inserting a sleeper, and a shelf board mounted on the main girder for mounting the cross girder. ,
The main girder is made of shaped steel, the cross girder is made by superimposing two L-shaped steels, forming a U-shaped cross section for inserting sleepers and fastening with high-strength bolts. It is characterized in that it is configured to be attached to the main girder plate with high strength bolts. The invention according to claim 2 is a construction girder comprising a main girder, a cross girder for inserting a sleeper, and a shelf board for mounting the cross girder mounted on the main girder, wherein the main girder is formed of a shape steel. The cross beam is an H-beam, and a part of the flange at both ends is cut and processed. The shelf is constructed by attaching an L-beam to the main girder abdominal plate with high-strength bolts. A sleeper is inserted inside. According to a third aspect of the present invention, in a construction girder comprising a main girder, a cross girder, and a shelf board mounted on the main girder for mounting the cross girder, the main girder is made of shaped steel, and the cross girder is H-shaped. It is composed of steel, and the shelf is constructed by attaching L-shaped steel to the main girder abdominal plate with high-strength bolts, and fastening the flange of the cross-beam H-shaped steel and the rail directly with an insulating fastening device via insulating material. It is characterized by.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１は本発明の工事桁の例を説明する図であり、
図１（ａ）は軌道に直交する断面図、図１（ｂ）は図１
（ａ）のＡ−Ａ断面図である。Ｉ形断面の主桁１０、レ
ール３を受ける橋枕木１３を挿入するための横桁１１、
横桁を載せるための棚板１４で構成されているのは図５
の場合と同様であり、図の左側が支点部、右側が中間部
を示し、支点部においては主桁１０に端補剛材１６が取
り付けられている点も図５の場合と同じである。Embodiments of the present invention will be described below. FIG. 1 is a diagram illustrating an example of a construction girder according to the present invention.
1A is a cross-sectional view orthogonal to the track, and FIG.
It is an AA sectional view of (a). Main girder 10 of I-shaped cross section, cross girder 11 for inserting bridge sleeper 13 for receiving rail 3
FIG. 5 shows a shelf board 14 on which a cross beam is placed.
5, the left side of the figure shows the fulcrum part, and the right side shows the middle part. In the fulcrum part, the end stiffener 16 is attached to the main girder 10 as in the case of FIG.
【０００７】主桁は鋼板を溶接して製作する従来法とは
異なり、Ｈ形鋼または極厚Ｈ形鋼等の形鋼からなる主桁
１０を使用する。横桁も鋼板を溶接する従来法とは異な
り、２つの山形鋼（Ｌ形鋼）１１ａ、１１ｂを重ね合わ
せ、打ち込み式高力皿ボルト１２で締結してＵ形断面を
形成する。図示の例では、橋梁用の橋枕木１３が挿入さ
れている。棚板は、鋼板を主桁腹板に溶接して取り付け
る従来法と異なり、山形鋼（Ｌ形鋼）１４を高力ボルト
１５で取り付ける。横桁の棚板への取り付けも高力ボル
ト１５を用い、また支点部の端補剛材１６も高力ボルト
１５で接合する。こうして、主桁、横桁、棚板は全て溶
接を用いず、形鋼と高力ボルトを用いて製作することが
できる。The main girder uses a main girder 10 made of a section steel such as an H-section steel or an ultra-thick H-section steel, unlike the conventional method in which steel plates are welded and manufactured. The cross beam also differs from the conventional method of welding steel plates in that two angle steels (L-shaped steels) 11a and 11b are overlapped and fastened with a driving high-strength countersunk bolt 12 to form a U-shaped cross section. In the illustrated example, a bridge sleeper 13 for a bridge is inserted. Unlike the conventional method in which a steel plate is welded to a main girder plate by welding a steel plate, an angle iron (L-shaped steel) 14 is attached with a high-strength bolt 15. A high-strength bolt 15 is also used to attach the cross beam to the shelf, and the end stiffener 16 at the fulcrum is also joined by the high-strength bolt 15. In this way, the main girder, the cross girder, and the shelf can all be manufactured using the shape steel and the high-strength bolt without using welding.
【０００８】図２は本発明の工事桁の他の例を示す図で
あり、図２（ａ）は軌道に直交する断面図、図２（ｂ）
は図１（ａ）のＡ−Ａ断面図で、図１と同一番号は同一
内容を示している。この例は並枕木４が橋枕木に比して
断面が小さいので横桁にＨ形鋼２１を使用し、その内側
に枕木を挿入するようにした点のみ図１と異なり、それ
以外の構成は図１の場合と同じである。なお、Ｈ形鋼２
１端部のウエブ部分２１ａが棚板に載るように、フラン
ジ２１ｂの一部を切断加工している。FIG. 2 is a view showing another example of the construction girder of the present invention. FIG. 2 (a) is a sectional view orthogonal to the track, and FIG. 2 (b).
1A is a sectional view taken along the line AA in FIG. 1A, and the same reference numerals as those in FIG. 1 indicate the same contents. This example differs from FIG. 1 only in that the cross-section of the row sleeper 4 is smaller than that of the bridge sleeper, so that an H-shaped steel 21 is used for the cross beam and a sleeper is inserted inside the cross beam. This is the same as in FIG. In addition, H-section steel 2
A part of the flange 21b is cut so that the web portion 21a at one end rests on the shelf.
【０００９】図３は本発明の工事桁の他の例を示す図で
あり、図３（ａ）は軌道に直交する断面図、図３（ｂ）
は図３（ａ）のＡ−Ａ断面図で、図１と同一番号は同一
内容を示している。この例は横桁にＨ形鋼３１を使用
し、枕木を使用しないで、レール３とＨ形鋼３１のフラ
ンジ間に絶縁材３２を介在させて直に絶縁締結装置３３
で締結した点のみ図１と異なり、それ以外の構成は図１
の場合と同じである。この例では枕木を使用しないので
工事桁の施工性を一層向上させることができる。なお、
Ｈ形鋼３１とレールの間を絶縁するのは信号電流が流れ
るレール間が短絡するいのを防ぐためである。FIG. 3 is a view showing another example of the construction girder of the present invention. FIG. 3 (a) is a sectional view orthogonal to the track, and FIG. 3 (b).
FIG. 3A is a sectional view taken along the line AA in FIG. 3A, and the same reference numerals as those in FIG. In this example, an H-shaped steel 31 is used for the cross beam, and a sleeper is not used, and an insulating material 32 is interposed between the rail 3 and the flange of the H-shaped steel 31 to directly connect the insulation fastening device 33.
1 differs from FIG. 1 only in that
Is the same as In this example, since the sleepers are not used, the workability of the work girder can be further improved. In addition,
The insulation between the H-section steel 31 and the rail is to prevent a short circuit between the rails through which the signal current flows.
【００１０】[0010]
【発明の効果】以上のように本発明によれば、形鋼と高
力ボルトを用いて製作するため、鋼板を溶接する必要が
なく、従来の鋼板を溶接して製作する工事桁に比べて経
済性の向上、施工性の向上を図ることができる。また、
従来の工事桁と同様の機能を有し、列車荷重を確実に受
けることができる。As described above, according to the present invention, since it is manufactured by using a shaped steel and a high-strength bolt, it is not necessary to weld a steel plate, and compared with a construction girder manufactured by welding a conventional steel plate. It is possible to improve economy and workability. Also,
It has the same function as a conventional construction girder and can reliably receive train loads.
【図１】 本発明の工事桁の例を説明する図である。FIG. 1 is a diagram illustrating an example of a construction girder according to the present invention.
【図２】 本発明の工事桁の他の例を示す図である。FIG. 2 is a view showing another example of the construction girder of the present invention.
【図３】 本発明の工事桁の他の例を示す図である。FIG. 3 is a view showing another example of the construction girder of the present invention.
【図４】 軌道の仮受けを説明する図である。FIG. 4 is a diagram illustrating temporary reception of a trajectory.
【図５】 工事桁を説明する図である。FIG. 5 is a diagram illustrating a construction girder.
３…レール、４…並枕木、１０…主桁、１１，２１，３
１…横桁、１１ａ，１１ｂ…Ｌ形鋼、１２…打ち込み式
高力皿ボルト、１３…橋枕木、１４…棚板、１５…高力
ボルト、１６…端補剛材、２１ａ…ウエブ、２１ｂ…フ
ランジ、３２…絶縁材、３３…絶縁締結装置。3 ... rail, 4 ... row sleepers, 10 ... main girder, 11, 21, 3
DESCRIPTION OF SYMBOLS 1 ... Cross beam, 11a, 11b ... L-shaped steel, 12 ... High-strength countersunk bolt, 13 ... Bridge sleeper, 14 ... Shelf board, 15 ... High-strength bolt, 16 ... End stiffener, 21a ... Web, 21b ... Flange, 32 ... Insulation material, 33 ... Insulation fastening device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 齋藤 聡 東京都渋谷区代々木二丁目二番二号 東日 本旅客鉄道株式会社内 Ｆターム(参考） 2D056 AA01 AA09 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Satoshi Saito 2-2-2, Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company F-term (reference) 2D056 AA01 AA09
Claims (3)
主桁に取り付けられて横桁を載せるための棚板とからな
る工事桁において、主桁を形鋼で構成し、横桁を２つの
Ｌ形鋼を重ね合わせて枕木を挿入するＵ形断面を形成し
て高力ボルトで締結することにより構成し、棚板はＬ形
鋼を主桁腹板に高力ボルトで取り付けて構成したことを
特徴とする工事桁。1. A main girder, a cross girder for inserting a sleeper,
In a construction girder consisting of a shelf board for mounting a cross girder attached to the main girder, the main girder is made of shaped steel, and the cross girder has a U-shaped cross section in which two L-shaped steels are overlapped and a sleeper is inserted. The construction girder is formed by forming and fastening with high-strength bolts, and the shelf is constructed by attaching L-shaped steel to the main girder plate with high-strength bolts.
主桁に取り付けられて横桁を載せるための棚板とからな
る工事桁において、主桁を形鋼で構成し、横桁をＨ形鋼
として両端部のフランジの一部を切断加工して構成し、
棚板はＬ形鋼を主桁腹板に高力ボルトで取り付けて構成
し、横桁Ｈ形鋼の内側に枕木を挿入するようにしたこと
を特徴とする工事桁。2. A main girder, a cross girder for inserting a sleeper,
In a construction girder consisting of a shelf board on which a main girder is mounted and on which a cross girder is mounted, the main girder is made of shaped steel, the cross girder is made of H-shaped steel, and a part of the flange at both ends is cut and processed. And
The construction girders are characterized in that the shelves are constructed by attaching L-shaped steel to the main girder abdominal plate with high-strength bolts and inserting sleepers inside the horizontal girder H-shaped steel.
横桁を載せるための棚板とからなる工事桁において、主
桁を形鋼で構成し、横桁をＨ形鋼で構成し、棚板はＬ形
鋼を主桁腹板に高力ボルトで取り付けて構成し、横桁Ｈ
形鋼のフランジとレールを絶縁材を介して直に絶縁締結
装置で締結したことを特徴とする工事桁。3. A construction girder comprising a main girder, a cross girder, and a shelf board mounted on the main girder for mounting the cross girder, wherein the main girder is made of a shaped steel, and the cross girder is made of an H-shaped steel. The shelf is constructed by attaching L-shaped steel to the main girder plate with high-strength bolts.
A construction girder, wherein a flange of a section steel and a rail are directly fastened by an insulation fastening device via an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000025499A JP3844329B2 (en) | 2000-02-02 | 2000-02-02 | Construction girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000025499A JP3844329B2 (en) | 2000-02-02 | 2000-02-02 | Construction girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001214405A true JP2001214405A (en) | 2001-08-07 |
| JP3844329B2 JP3844329B2 (en) | 2006-11-08 |
Family
ID=18551353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000025499A Expired - Lifetime JP3844329B2 (en) | 2000-02-02 | 2000-02-02 | Construction girder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3844329B2 (en) |
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| JP2003064601A (en) * | 2001-08-29 | 2003-03-05 | Kajima Corp | Under-road construction method and rigid floor slab used therefor |
| JP2004263551A (en) * | 2003-02-12 | 2004-09-24 | Tekken Constr Co Ltd | Method for constructing underground structure and supporting structure of ground structure |
| KR100759923B1 (en) | 2007-05-28 | 2007-09-18 | 김정현 | Low height and longspan girder for a railway |
| JP2011052488A (en) * | 2009-09-03 | 2011-03-17 | Ohbayashi Corp | Track height adjusting system, and track height adjusting method using the same |
| JP2012036615A (en) * | 2010-08-05 | 2012-02-23 | East Japan Railway Co | Construction girder |
| JP2014025337A (en) * | 2012-06-21 | 2014-02-06 | Jfe Steel Corp | Construction method of temporary bridge and precast floor slab used for construction method |
| JP2015124477A (en) * | 2013-12-25 | 2015-07-06 | 鹿島建設株式会社 | Installing method of construction girders |
| JP2018003457A (en) * | 2016-07-04 | 2018-01-11 | 東日本旅客鉄道株式会社 | Track skeleton support structure |
| CN106702831A (en) * | 2017-01-24 | 2017-05-24 | 北京交通大学 | Straddling type monorail traffic full-steel structural system based on assembly type technology |
| CN108797870A (en) * | 2017-04-27 | 2018-11-13 | 裕在有限公司 | Method for connecting floor slab to steel beam of wooden building |
| CN107663814A (en) * | 2017-08-14 | 2018-02-06 | 中铁上海工程局集团华海工程有限公司 | One kind be used for underground cable lay a railway track construct service channel at transition apparatus and its construction method |
| CN108203901A (en) * | 2018-02-09 | 2018-06-26 | 北京交通大学 | A kind of cross-saddle single-track traffic consolidates formula two-orbit beam |
| WO2020110132A1 (en) * | 2018-11-30 | 2020-06-04 | THAVAMANI PANDI, Vellaisamy | System for construction of double u and single u steel concrete composite structure for bridges |
| CN113272496A (en) * | 2018-11-30 | 2021-08-17 | 维拉萨米·塔瓦马尼 潘迪 | Construction system for double-U-shaped and single-U-shaped reinforced concrete composite structure of bridge |
| US11732428B2 (en) | 2018-11-30 | 2023-08-22 | Vellaisamy Thavamani Pandi | System for construction of double u and single u steel concrete composite structure for bridges |
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