Method for intersection angle high-speed railway underpassing low-clearance girder erection

A technology of acute angle crossing and construction method, which is applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., and can solve the problems of beam erection construction and the inability to use bridge erection machines.
CN104499433AActive Publication Date: 2015-04-08CHINA RAILWAY 24TH BUREAU GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY 24TH BUREAU GRP
Publication Date
2015-04-08

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Abstract

The invention relates to a method for intersection angle high-speed railway underpassing low-clearance girder erection, and solves the problems that in the interchange engineering, when the clearance to the bottom of the girder of the high-speed railway is small, a bridge girder erection machine cannot use the normal construction method to perform the girder erection. In the method, the bridge girder erection machine, carrying pole cross beams, girder transfer tracks, and a girder transfer trolley are effectively combined, the on-site owned conditions are completely utilized, so that the low clearance limit is avoided; and auxiliary facilities are arranged, so that beams are orderly fed in sections and steps. For the box girder erection at the crossings of the highway and railway, the bridge girder erection machine overhead crane is adopted on one end, a construction scheme of hanging chain blocks on the special carrying pole cross beams are adopted on the other end, so that the construction problem of low-clearance small box girder erection can be well solved.
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Description

technical field

[0001] The invention relates to the technical field of overpass bridge construction engineering, in particular to a construction method for erecting girders crossing at an acute angle and passing under high-speed railways with low headroom. Background technique

[0002] In traffic engineering, high-speed railways and high-grade highways have the phenomenon of adopting bridge structure three-dimensional intersections. The superstructure design of high-grade highway bridges mostly adopts simple-supported and then continuous box girder structures. Car transported to the construction site, using the corresponding type of bridging frame construction technology. However, due to the limitation of site conditions during the design of the new bridge, the clearance between the bridge deck and the bottom of the high-speed rail beam is small, and the bridge erecting machine cannot use the normal construction technology to erect the beam. Existing beam erection methods a...

Claims

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