Railway box girder transverse moving and falling device and dismantling construction method

A technology of box girder and lateral movement, which is applied in bridges, bridge maintenance, bridge reinforcement, etc. It can solve the problems that the old beams cannot be removed and the new beams can be rebuilt, so as to reduce the risk of high-altitude operations, high demolition safety, and low construction costs Effect

Active Publication Date: 2022-03-15
CHINA RAILWAY SEVENTH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technology cannot ensure that the demolition of old beams and reconstruction of new beams can be completed within a relatively short construction period

Method used

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  • Railway box girder transverse moving and falling device and dismantling construction method
  • Railway box girder transverse moving and falling device and dismantling construction method
  • Railway box girder transverse moving and falling device and dismantling construction method

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] A railway box girder traversing and falling device according to an embodiment of the present invention includes a traversing support and a falling support.

[0041] Specifically, the traversing support includes a steel pipe pile group and a slideway assembly. There are two groups of steel pipe pile groups, which are respectively arranged on the sides of two piers. The steel pipe pile group includes a first steel pipe pile 1 , a second steel pipe pile 2 , a third steel pipe pile 3 , a pile top longitudinal beam 4 and a first pile top distribution beam 5 . The first steel pipe pile 1, the second steel pipe pile 2 and the third steel pipe pile 3 are distributed at intervals along the transverse extension direction of the box girder. The first steel pipe pile 1 is a single row of steel pipe piles, and the first steel pipe pile 1 has three and are located below the...

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PUM

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Abstract

The invention discloses a railway box girder transverse moving and falling device and a dismantling construction method. The method comprises the following steps of installing a steel pipe pile set, installing a hoop device, installing a slideway beam, installing a limiting device, jacking a box girder, arranging an inner sliding block and an outer sliding block, transversely moving the box girder, installing a falling support and dismantling redundant assemblies of the transverse moving support, excavating a groove and falling the box girder. According to the railway box girder transverse moving and falling device and the dismantling construction method, the box girder can be dismantled while the bridge piers are reserved, the bridge site and the bridge site outer support can be constructed at the same time, and after the box girder transversely moves out of the bridge site, follow-up replacement work can be conducted.

Description

technical field [0001] The invention relates to the technical field of bridge dismantling construction, in particular to a railway box girder lateral movement and falling device and a dismantling construction method. Background technique [0002] During the construction, operation, reconstruction and expansion stages of railway bridges, the 32m double-track simply supported box girder (with a beam weight of about 900t) will need to be dismantled for various reasons and then re-constructed with a new box girder. In the prior art, it is divided into static cutting demolition, blasting demolition and hoisting demolition. Static cutting demolition needs to divide the beam body into multiple small pieces, and needs to set up brackets for temporary support. The disadvantages are long construction period and low efficiency, which seriously affect the construction of new beams. The disadvantage of blasting demolition is that it is easy to damage structures such as pier body and pad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01D2/04
CPCE01D22/00E01D2/04
Inventor 殷爱国李二伟刘建伟冯丹谭若愚孙宇王鸿飞郝先慧郑军星金晓东
Owner CHINA RAILWAY SEVENTH GRP CO LTD
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