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Railway suspension bridge deck type steel truss girder bridge floor structure

A suspension bridge and steel truss technology is applied in the field of the deck structure of the upper-supported steel truss girder of the railway suspension bridge, which can solve the problems such as the inability to solve the fatigue of the steel components and the inability to reduce the engineering cost, and achieves the saving of the steel consumption, the simple structure, and the resistance to good wind performance

Active Publication Date: 2018-07-31
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

[0008] The object of the present invention is to solve the problem that the steel truss girders of the railway suspension bridges in the prior art mentioned in the above background technology are all under-supported structures, which cannot reduce the project cost and solve the problems of fatigue of steel members, and provide a railway suspension bridge. Bearing steel truss bridge deck structure

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  • Railway suspension bridge deck type steel truss girder bridge floor structure
  • Railway suspension bridge deck type steel truss girder bridge floor structure
  • Railway suspension bridge deck type steel truss girder bridge floor structure

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as Figure 1~6 , an overhead steel truss deck structure of a railway suspension bridge, this embodiment includes a steel truss and a bridge deck system, wherein the bridge deck system is fixed on the upper end of the steel truss girder, which is an overhead structure.

[0034] Such as Figure 1~4 As shown, the steel truss includes an upper parallel connection and a lower parallel connection, including two upper chords 1 arranged at intervals along the transverse bridge direction and a plurality of beams 2 arranged at intervals along the bridge direction between the two upper chords 1, and the beams 2 It is a steel member whose two ends are respectively fixed on two upper chords 1 arranged along the horizontal bridge direction, and the upper chord 1 is suspended on the main cable 3 of the suspension bridge through a suspen...

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Abstract

The invention relates to the technical field of bridge structures, in particular to a railway suspension bridge deck type steel truss girder bridge floor structure. The structure comprises a top lateral bracing and a bottom lateral bracing located under the top lateral bracing. The bottom lateral bracing and the top lateral bracing are fixedly connected to form a steel truss girder extending in the direction of a bridge. The top lateral bracing is suspended on suspension bridge main cables through suspenders. The structure further comprises a bridge floor system fixed to the top lateral bracing. The bridge floor system comprises a bridge floor structure and a supporting structure located below the bridge floor structure. The supporting structure comprises a large longitudinal beam horizontally arranged in the direction of the bridge. The large longitudinal beam comprises two I-beams arranged in a spaced mode in the transverse direction of the bridge. The two ends of each I-beam are fixed to the top lateral bracing. The two I-beams are connected into a whole through a connecting structure. The bridge floor structure is fixed to flange plates at the upper ends of the I-beams. The railway suspension bridge deck type steel truss girder bridge floor structure is simple and convenient to install, on the premise that the strength of a whole bridge system is guaranteed, plenty of materials are saved, cost is reduced, construction efficiency is improved, and the popularization value is extremely high.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to an overhead steel truss deck structure of a railway suspension bridge. Background technique [0002] At present, most of the suspension bridges running on railways in China are mainly used for road and railway, and there is no pure railway suspension bridge in operation so far. Domestic road-rail suspension bridges all adopt steel truss girders arranged in layers. Although the technology of steel truss girders is mature, there are still many imperfections: [0003] 1. Most of the railways run on the lower level, while the highway runs on the upper level. The height of the bridge tower is high and the length of the approach bridge is relatively large, so the project investment is large. [0004] 2. The deck system of steel truss girders is mainly composed of orthogonal special-shaped slab systems, and the fatigue problem of steel structures is serious. [0005] 3. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D11/02E01D6/00
CPCE01D6/00E01D11/02E01D19/125Y02A30/30
Inventor 文望青王新国廖祖江周继李喜平张杰柳鸣李元俊史娣尹书军王鹏宇张晓江李桂林崔苗苗罗春林田芳郭远航郭安娜
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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