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Simply supported steel truss girder horizontal construction structure and its construction method

A construction method and technology of steel truss girder, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem of large impact on transportation, and achieve the effect of saving investment, simplifying design, and facilitating design and construction

Active Publication Date: 2016-04-13
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a simply supported steel truss girder horizontal construction structure and its construction method, which solves the problem that the steel truss girder construction has a great impact on the existing traffic under the bridge

Method used

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  • Simply supported steel truss girder horizontal construction structure and its construction method
  • Simply supported steel truss girder horizontal construction structure and its construction method
  • Simply supported steel truss girder horizontal construction structure and its construction method

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Embodiment Construction

[0030] The present invention will be described in detail below in combination with specific embodiments.

[0031] The simply supported steel truss girder horizontal rotation construction structure involved in the present invention is suitable for the construction situation of simply supported steel truss girders spanning existing railways or highways. The permanent piers supporting the steel truss beams are respectively the permanent piers 7 at the rotating center end and the permanent piers 3 at the sliding end. A temporary pier 1 is arranged on the same side of the permanent pier 7 at the rotating center end of the existing railway or highway, and the straight-line distance from the temporary pier 1 to the permanent pier 7 at the rotating center end and the straight-line distance from the permanent pier 3 at the sliding end to the permanent pier 7 at the rotating center end same. A track beam 2 is erected between the temporary pier 1 and the permanent pier 3 at the sliding ...

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Abstract

The invention relates to a horizontal swivel construction system and a horizontal swivel construction method for a simply supported steel trussed beam. During the construction of a steel trussed beam spanning an existing railway or an existing highway, under-beam traffic is greatly disturbed. According to the system and the method, permanent piers which are used for supporting the simply supported steel trussed beam are arranged on the two sides of the existing railway or the existing highway; a temporary pier is arranged on the same side of a rotary-center-end permanent pier of the existing railway or the existing highway; a track beam is erected between the temporary pier and a sliding-end permanent pier; a sliding-end slide way which is used for pushing the end of the simply supported steel trussed beam is arranged on the temporary pier, the beam surface of the track beam and the sliding-end permanent pier; a rotary hinge which is used for fixing the other end of the simply supported steel trussed beam is arranged on the pier top of the rotary-center-end permanent pier; circular-arc-shaped rotary-center-end slide ways are symmetrically arranged on the two sides of the rotary hinge; the simply supported steel trussed beam is pushed through a jack so as to horizontally swivel to a design position. According to the system and the method, the splicing of main rods of the steel trussed beam and the construction of the temporary pier are completed nearby a line, the track beam is hoisted in position, and the existing under-bridge traffic is slightly influenced.

Description

technical field [0001] The invention belongs to the technical field of bridge structure construction, and in particular relates to a simply supported steel truss girder horizontal rotation construction structure and a construction method thereof. Background technique [0002] Steel truss girder has the advantages of large spanning capacity, suitable for industrial manufacturing, convenient construction, and easy repair. It is a commonly used scheme in the design of large and medium span bridges. The current construction methods include in-situ bracket assembly, cantilever assembly, dragging method, etc. [0003] The construction of in-situ support assembly and cantilever assembly method has a great impact on the transportation under the bridge, and there are certain safety hazards, especially for railway transportation with high safety requirements. There is a large difference between the stress state and the actual use state during the construction of the cantilever assemb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/08
Inventor 吴文华赵会东贠庭贵赵亮冯亚成陈刚柴唐焰雷晓峰王克辉司万胜姚保辉文鹏倪燕平易成滕鹏
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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