JPH0633406A - Structure for longitudunal beam for railroad elevated bridge - Google Patents

Structure for longitudunal beam for railroad elevated bridge

Info

Publication number
JPH0633406A
JPH0633406A JP21240392A JP21240392A JPH0633406A JP H0633406 A JPH0633406 A JP H0633406A JP 21240392 A JP21240392 A JP 21240392A JP 21240392 A JP21240392 A JP 21240392A JP H0633406 A JPH0633406 A JP H0633406A
Authority
JP
Japan
Prior art keywords
fixed
vertical
rail
track
railroad
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
Application number
JP21240392A
Other languages
Japanese (ja)
Other versions
JP3028157B2 (en
Inventor
Shinichi Tamai
真一 玉井
Atsushi Nariyuki
惇 成行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyu Construction Co Ltd
Original Assignee
Tokyu Construction Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokyu Construction Co Ltd filed Critical Tokyu Construction Co Ltd
Priority to JP4212403A priority Critical patent/JP3028157B2/en
Publication of JPH0633406A publication Critical patent/JPH0633406A/en
Application granted granted Critical
Publication of JP3028157B2 publication Critical patent/JP3028157B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the cost by a method wherein after bridge piers are erected on both sides of an existing track and a cross beam is fixed between the upper ends thereof, a longitudinal beam having a rail installed on the upper surface of a prestressed concrete beam is fixed to the cross beam. CONSTITUTION:Bridge piers 2 are erected on both sides of an existing track or a road and a cross beam 3 is caused to securely span between the upper ends thereof. A longitudinal beam 1 on the upper surface of which a rail or a track skeleton is previously fixed is fixed to the upper part of the beam 3. Each member is made of precast concrete in which prestress is introduced. This constitution obviates a need for a slab and a track bed, whereby the structural section of each part is reduced. Further, since a member fabricated at a factory is used, the number of the members can be reduced and a need for timbering is obviated, and the term of works can be shortened.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、鉄道高架橋の縦粱の構
造に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of vertical lees of railway viaducts.

【0002】[0002]

【従来の技術】従来の鉄道高架橋の施工方法において
は、橋脚の上部にスラブを施工したらその上に砕石道
床、あるいはスラブ道床を搭載し、道床の上にまくらぎ
を敷設し、その上に軌条を敷設する構造であった。
2. Description of the Related Art In the conventional construction method for railway viaducts, after slabs have been constructed on the piers, crushed stone slabs or slabs are mounted on them, sleepers are laid on the slabs, and railroad tracks are laid on them. It was a structure to lay.

【0003】[0003]

【発明が解決しようとする問題点】前記した従来の鉄道
高架橋の縦粱の構造にあっては、次のような問題点があ
る。<イ>スラブの自重は0.6t/ m2 、道床の自重は
0.9t/m2 程度である。このように死荷重が大きいた
め、それを支持する高架橋の各断面が大きくなり不経済
である。 <ロ>スラブコンクリートの打設のためにはその下部型
枠を支保工で支持しなければならない。そのために特に
使用中の鉄道の上にさらにスラブを設ける場合には、支
保工の高さだけスラブを高く設置しなければならない。
The above-mentioned conventional structure of the vertically-raised railroad viaduct has the following problems. <a> The slab's own weight is 0.6 t / m 2 , and the roadbed's own weight is
It is about 0.9 t / m 2 . Since the dead load is large in this way, each cross section of the viaduct supporting it becomes large, which is uneconomical. <B> In order to place slab concrete, the lower formwork must be supported by shoring. For this reason, especially if additional slabs are to be installed on the railroads in use, the slabs must be set higher by the height of the support work.

【0004】[0004]

【本発明の目的】本発明は上記のような従来の問題を改
善するためになされたもので、部材数が少なく、短い工
期において経済的に施工することのできる鉄道高架橋の
施工に使用する縦粱の構造を提供することを目的とす
る。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has a small number of members and is used for construction of railway viaducts which can be economically constructed in a short construction period. The purpose is to provide the structure of rice cake.

【0005】[0005]

【問題点を解決するための手段】すなわち本発明は、軌
道の両側に橋脚を立設し、両側の橋脚間に、軌道を横断
する方向に横断粱を固定し、横断粱の上部に、軌道と平
行方向に固定する縦粱であって、工場生産のプレストレ
スコンクリートの粱の上面に、軌条または軌框を直接固
定してなる、鉄道高架橋の縦粱の構造である。
[Means for Solving the Problems] That is, according to the present invention, bridge piers are erected on both sides of the track, and the crosscuts are fixed between the piers on both sides in the direction crossing the track. It is a vertical grout that is fixed in the direction parallel to the railroad viaduct that is directly fixed to the upper surface of the factory-produced prestressed concrete grits.

【0006】[0006]

【本発明の構成】以下図面を参照しながら本発明鉄道高
架橋の縦粱の構造について説明する。
BEST MODE FOR CARRYING OUT THE INVENTION The structure of the vertical grits of the railway viaduct of the present invention will be described below with reference to the drawings.

【0007】<イ>縦粱 鉄道の軌道と平行方向に設置する粱を縦粱1と称する。
本発明の縦粱1は工場で製造したプレキャスト部材であ
る。したがって良好な品質管理の下に製造された部材を
使用することができる。そして特に縦粱1には軌条4ま
たは軌框を一体に取り付けた構造である。すなわちコン
クリート製の縦粱1の上面に、締結装置を使って軌条4
などを工場で一体に取り付けた、軌条4付きプレストレ
ス粱である。軌条4などが縦粱1と一体化しているか
ら、縦粱1の運搬、架設作業によって、軌条4を同時に
運搬し、架設することができる。さらに軌条4などと縦
粱1が一体化しているから、道床などを別に施工する必
要がなく、縦粱1の架設の完了と同時に、軌条4の敷設
も完了することになる。
<B> Vertical sluice A vertical sluice 1 is a sluice installed in a direction parallel to a railroad track.
The vertical grain 1 of the present invention is a precast member manufactured in a factory. Therefore, the member manufactured under good quality control can be used. In particular, the vertical sluice 1 has a structure in which a rail 4 or a rail is integrally attached. That is, on the upper surface of the vertical grout 1 made of concrete, using the fastening device, the rail 4
It is a prestressed gruel with rails 4, which is integrally attached at the factory. Since the rail 4 and the like are integrated with the vertical grove 1, the rail 4 can be simultaneously transported and erected by the transportation and erection work of the vertical gruel 1. Further, since the rail 4 and the vertical rail 1 are integrated, it is not necessary to separately construct a roadbed or the like, and the construction of the rail 4 is completed at the same time when the construction of the vertical rail 1 is completed.

【0008】<ロ>その他の部材 本発明の縦粱1とともに使用する部材は、橋脚、横断粱
であり、すべて工場で製造したプレキャスト部材であ
る。したがって良好な品質管理の下に製造された部材を
使用することができる。さらに各コンクリート部材はプ
レストレスを導入したものを使用する。したがって、小
さい断面で軽量でありながら十分な強度を期待できる。
<B> Other members Members used with the vertical grout 1 of the present invention are bridge piers and transverse grits, all of which are precast members manufactured in a factory. Therefore, the member manufactured under good quality control can be used. Furthermore, as each concrete member, one in which prestress is introduced is used. Therefore, it is possible to expect sufficient strength while having a small cross section and being lightweight.

【0009】[0009]

【施工方法】次に本発明の縦粱1を使用した施工方法に
ついて説明する。 <イ>橋脚の立設 現在使用中の軌道や道路の両側の地中には基礎を設置
し、その基礎の上には橋脚2を立設する。この橋脚2も
工場生産したプレストレスの部材であり、したがって現
場でコンクリートを打設して構築する方法に比較して施
工はきわめて迅速である。
[Construction method] Next, a construction method using the vertical gruel 1 of the present invention will be described. <a> Standing of piers Foundations will be installed in the ground on both sides of the currently used tracks and roads, and piers 2 will be erected on the foundations. This bridge pier 2 is also a factory-produced prestressing member, and therefore construction is extremely quick compared to the method of pouring and constructing concrete on site.

【0010】<ロ>横断粱の架設 軌道の両側に立設した橋脚2の上部を連結する状態で、
横断粱3を架設する。この横断粱3は当然、橋脚2の上
端と一体に固定しなければならない。そのためには交差
する鉄筋を場所打ちコンクリートで固定したり、横断粱
3と橋脚2とを貫通したPC鋼材を橋脚2の外側から緊
張したり、橋脚2の上部に横断粱3を搭載して橋脚2の
上端から露出させたPC鋼材で横断粱3を緊張したり、
その他各種の固定方法を採用することができる。
<B> Construction of traverses With the upper parts of the bridge piers 2 standing on both sides of the track connected,
A crossing pad 3 is installed. Naturally, the cross-cuts 3 must be fixed integrally with the upper end of the pier 2. For that purpose, the crossed rebars are fixed by cast-in-place concrete, the PC steel material that penetrates the transverse sluice 3 and the pier 2 is strained from the outside of the pier 2, or the transverse sluice 3 is mounted on the upper part of the pier 2 Tension the transverse lees 3 with the PC steel exposed from the upper end of 2,
Other various fixing methods can be adopted.

【0011】<ハ>縦粱1の架設 こうして橋脚2の上端に固定した横断粱3の上部に、本
発明の縦粱1を架設して固定する。縦粱1には前記した
ように直接、軌条4または軌框を固定してある。したが
って横断粱3の上部に縦粱1を架設することによって、
軌条4の敷設までが一体で完了する。その後に横断粱3
と縦粱1とは一体に強固に固定する。架設に際して、1
本の縦粱1に1本の軌条4を固定してあるから、2本の
縦粱1を横断粱3上に平行に架設することによって1組
の軌道が完成する。
<C> Installation of the vertical grout 1 The vertical grout 1 of the present invention is erected and fixed on the upper part of the cross-grid 3 fixed to the upper end of the pier 2 in this way. The rail 4 or the rail is directly fixed to the vertical grove 1 as described above. Therefore, by erection of the vertical grove 1 on the upper part of the cross grove 3,
The installation of rail 4 is completed in one. After that, crossing 3
And vertical gruel 1 are firmly fixed together. When installing 1
Since one rail 4 is fixed to the vertical grove 1, a set of tracks is completed by erection of the two vertical grates 1 on the transverse grates 3 in parallel.

【0012】[0012]

【発明の効果】本発明の鉄道高架橋の縦粱1の構造は以
上説明したようになるから次のような効果を得ることが
できる。 <イ>縦粱1と軌条4とがすでに一体となったものを使
用する。そのためにスラブの施工が不要であり、さらに
スラブの上に搭載する多量の道床が不要となる。したが
って死荷重を大幅に減少することができ、その結果、地
震時の水平慣性力が小さくなるために、橋脚2断面、基
礎構造その他の構造、断面を小さくすることができ、き
わめて経済的である。 <ロ>工場で製造した部材であり、これらを使用して組
み立てる。したがって現場で型枠を組んでコンクリート
を打設する方法に比較して部品、部材点数が少なく、工
期を大幅に短縮することができる。 <ハ>現場打ちのスラブを使用せず、軌条4と固定した
粱を使用するから、スラブ型枠などを支持する支保工が
不要である。したがって使用中の鉄道の上部に施工する
場合にも支保工や型枠の高さだけ低くすることができ、
経済的な施工が可能である。 <ニ>本発明の縦粱1のみが空中に架設される。したが
って従来のスラブ構造のように雨や雪がたまることがな
く、その処理が簡単である。
As described above, the structure of the railroad viaduct vertical mill 1 of the present invention is as described above, and the following effects can be obtained. <a> Use the vertical gruel 1 and the rail 4 which are already integrated. Therefore, slab construction is unnecessary, and further, a large amount of trackbeds mounted on the slab are unnecessary. Therefore, the dead load can be greatly reduced, and as a result, the horizontal inertial force at the time of the earthquake becomes small, so that the pier 2 cross section, foundation structure and other structures and sections can be made small, which is extremely economical. . <B> It is a member manufactured in the factory and assembled using these. Therefore, the number of parts and members is small as compared with the method of forming a concrete form and pouring concrete on site, and the construction period can be significantly shortened. <C> Since the cast-in-place slab is not used, but the rails fixed to the rail 4 are used, it is not necessary to support the slab formwork. Therefore, even when constructing on the upper part of the railway in use, it is possible to lower the support work and the height of the formwork,
Economical construction is possible. <D> Only the vertical gruel 1 of the present invention is installed in the air. Therefore, unlike the conventional slab structure, rain and snow do not collect, and the process is simple.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の縦粱を使用した鉄道高架橋の施工方法
の例の説明図
FIG. 1 is an explanatory diagram of an example of a method for constructing a railway viaduct using vertical shavings of the present invention.

【図2】完成状態の説明図[Figure 2] Illustration of the completed state

【図3】縦粱の構造の説明図FIG. 3 is an explanatory view of the structure of vertical gruel.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】軌道の両側に橋脚を立設し、 両側の橋脚間に、軌道を横断する方向に横断粱を固定
し、 横断粱の上部に、軌道と平行方向に固定する縦粱であっ
て、 工場生産のプレストレスコンクリートの粱の上面に、軌
条または軌框を直接固定してなる、 鉄道高架橋の縦粱の構造
Claims: 1. A vertical sluice in which bridge piers are erected on both sides of the track, transverse traverses are fixed between the piers on both sides in the direction that traverses the traverse, and the tops of the traverses are fixed in a direction parallel to the traverse. A railroad viaduct is directly fixed to the upper surface of the factory-produced prestressed concrete grits.
JP4212403A 1992-07-17 1992-07-17 Railroad viaduct structure Expired - Fee Related JP3028157B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4212403A JP3028157B2 (en) 1992-07-17 1992-07-17 Railroad viaduct structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4212403A JP3028157B2 (en) 1992-07-17 1992-07-17 Railroad viaduct structure

Publications (2)

Publication Number Publication Date
JPH0633406A true JPH0633406A (en) 1994-02-08
JP3028157B2 JP3028157B2 (en) 2000-04-04

Family

ID=16622013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4212403A Expired - Fee Related JP3028157B2 (en) 1992-07-17 1992-07-17 Railroad viaduct structure

Country Status (1)

Country Link
JP (1) JP3028157B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008303568A (en) * 2007-06-06 2008-12-18 Shimizu Corp Method of implementing vibration isolation of existing track
CN103031803A (en) * 2013-01-17 2013-04-10 铁道第三勘察设计院集团有限公司 Small-intersection angle low-height reinforced concrete overpass bridge structure
JP2014001516A (en) * 2012-06-15 2014-01-09 Kajima Corp Method for installing girder members
CN113389218A (en) * 2021-05-10 2021-09-14 中铁武汉勘察设计院有限公司 Retaining wall structure for entrance and exit of road bridge and construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008303568A (en) * 2007-06-06 2008-12-18 Shimizu Corp Method of implementing vibration isolation of existing track
JP2014001516A (en) * 2012-06-15 2014-01-09 Kajima Corp Method for installing girder members
CN103031803A (en) * 2013-01-17 2013-04-10 铁道第三勘察设计院集团有限公司 Small-intersection angle low-height reinforced concrete overpass bridge structure
CN103031803B (en) * 2013-01-17 2014-11-26 铁道第三勘察设计院集团有限公司 Small-intersection angle low-height reinforced concrete overpass bridge structure
CN113389218A (en) * 2021-05-10 2021-09-14 中铁武汉勘察设计院有限公司 Retaining wall structure for entrance and exit of road bridge and construction method thereof

Also Published As

Publication number Publication date
JP3028157B2 (en) 2000-04-04

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