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Construction system and method for cast-in-place box girder support of soft foundation area urban railway

A technology for bases and cities, applied in infrastructure engineering, bridges, bridge materials, etc., can solve the problems of large foundation damage and easy settlement, and achieve the effects of high rigidity of the bearing platform, small settlement deformation, and simple structure

Pending Publication Date: 2020-09-29
温州市铁路与轨道交通投资集团有限公司
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of large foundation damage and easy subsidence during the construction of the existing box girder in the background technology, the present invention provides a construction system and construction method for the cast-in-place box girder support of urban railways in soft ground areas

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  • Construction system and method for cast-in-place box girder support of soft foundation area urban railway
  • Construction system and method for cast-in-place box girder support of soft foundation area urban railway
  • Construction system and method for cast-in-place box girder support of soft foundation area urban railway

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Embodiment Construction

[0021] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0022] Depend on figure 1 combine Figure 2-3 As shown, a construction system for cast-in-place box girder brackets for urban railways in soft ground areas includes a cap 1, and a plurality of uprights 3 are arranged on the cap 1, and two adjacent uprights 3 are braced by scissors. 4 are connected, and each column 3 is provided with an active joint 5 and a lifting mechanism 6, and the lifting mechanism 6 is connected with the active joint 5 and is used to adjust the horizontal height of the active joint 5, and the described active joint 5 is provided with Bailey beam 9, said Bailey beam 9 is provided with the steel form 12 that is convenient to cast-in-place box girder. The beneficial effect of the present invention is that the load-bearing capacity of the bearing platform is fully utilized, the original foundation reinforcement and replacement treatment a...

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Abstract

The invention discloses a construction system and method for a cast-in-place box girder support of a soft foundation area urban railway. The problems that in existing box girder construction, damage to a foundation is large, and sedimentation is prone to occurring are solved. The system comprises a bearing platform, a plurality of stand columns are arranged on the bearing platform, every two adjacent stand columns are connected through a diagonal bracing, each stand column is provided with a movable head and a lifting mechanism, the lifting mechanisms are connected with the movable heads and used for adjusting the horizontal height of the movable heads, the movable heads are provided with bailey beams, and the bailey beams are provided with steel molds facilitating cast-in-place of box girders. The construction method comprises the steps of constructing the cast-in-situ bored piles, constructing the bearing platform, arranging the bailey trusses and constructing the cast-in-situ box girder. The system also has the advantages of simple structure, convenience in assembly, long service life and the like.

Description

technical field [0001] The invention relates to a construction system for an elevated box girder in a soft ground area, in particular to a construction system and a construction method for a cast-in-place box girder support for urban railways in a soft ground area. Background technique [0002] With the rapid development of my country's rail transit, elevated box girders are widely used in urban or suburban rail transit. Among them, cast-in-place box girders are widely used because of their low construction cost and stable and fast settlement. The box girder of reinforced concrete structure is divided into prefabricated box girder and cast-in-place box girder. The prefabricated box girder combined with the bridge erecting machine can be erected after the completion of the substructure, which can speed up the progress of the project and save the construction period. However, the prefabricated box girder occupies a large area and is inconvenient to transport. Therefore, large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D2/04E02D27/14E01D101/24
CPCE01D21/00E01D2/04E02D27/14E01D2101/24E02D2300/0029
Inventor 杜运国洪成泼苟长飞陈绍恳杨永庆刘长江仵飞飞
Owner 温州市铁路与轨道交通投资集团有限公司
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