Concrete continuous beam bridge transformation construction method

A construction method and concrete technology, which is applied to bridges, bridge parts, bridge maintenance, etc., can solve the problems of large amount of construction supports, environmental disturbance, and long construction period, and achieve the goals of reducing construction difficulty, small environmental disturbance, and saving construction period Effect

Active Publication Date: 2020-07-03
WUHAN BRIDGE SPECIAL TECH CO LTD CHINA RAILWAY MAJOR BRIDGE ENG BUREAU +1
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Problems solved by technology

[0005] The embodiment of the present application provides a construction method for the reconstruction of a concrete continuous girder bridge to solve

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  • Concrete continuous beam bridge transformation construction method
  • Concrete continuous beam bridge transformation construction method
  • Concrete continuous beam bridge transformation construction method

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[0052] In order to make the purpose, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments These are a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0053] The embodiment of the present application provides a construction method for the reconstruction of a concrete continuous beam bridge, which can solve the technical problems of large construction support, long construction period, and large environmental disturbance in related technologies.

[0054] See figure 1 As shown, the method provided in this embodiment inclu...

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Abstract

The invention relates to a concrete continuous beam bridge transformation construction method. The method comprises the following steps: dismantling a bridge deck pavement layer; arranging temporary buttresses on the two sides of a pier, and arranging first pad structures on the temporary buttresses; assembling a steel truss girder on the deck; rotating the steel truss girder to be borne on a first dip padding structure; anchoring the steel truss girder to the concrete continuous girder bridge through an anti-overturning system; dismounting, namely mounting a hanging system at the position, corresponding to the box girder section of a midspan closure, of the steel truss girder, anchoring the hanging system to the box girder section, cutting the box girder section, and lowering the box girder section by using the hanging system; and dismantling the rest box girder sections according to an inverse sequence of finished bridge pouring by using the processes in the dismantling step and a double-cantilever dismantling process; arranging a third pad structure at the top of the pier; rotating the steel truss girder to be borne on the third pad structure; arranging a steel cross beam support at the top of the pier; and rotating the steel truss girder to be borne on the steel cross beam support. The method is short in period, small in construction support amount and small in environmental disturbance.

Description

technical field [0001] The present application relates to the technical field of bridge engineering, in particular to a reconstruction construction method of a concrete continuous girder bridge. Background technique [0002] Due to structural problems of the bridge itself, urban planning, waterway and traffic facility upgrades, some early-built prestressed concrete continuous beam bridges have greatly restricted urban development in terms of load levels, navigation clearance, layout planning, etc., and need to be demolished and rebuilt . In the environment of reducing production capacity and promoting steel structure buildings, continuous steel truss beams have also been widely used. Therefore, keeping the substructure and span unchanged, removing the original concrete continuous girders and replacing them with continuous steel truss girders has become the primary choice for this type of bridge reconstruction. [0003] The conventional method for the reconstruction of conc...

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Application Information

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IPC IPC(8): E01D24/00E01D21/00E01D19/12E01D19/00
CPCE01D19/00E01D19/125E01D21/00E01D22/00
Inventor 江湧刘曙光陈诚魏魁范远威张武杨先权娄松江恒熊长青芦亮李邵远徐滢
Owner WUHAN BRIDGE SPECIAL TECH CO LTD CHINA RAILWAY MAJOR BRIDGE ENG BUREAU
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