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Manufacturing process of cantilever type steel box girder

A manufacturing process and technology of steel box girder, applied in the direction of manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of troublesome processing, large welding error, large internal stress, etc., to reduce errors, reduce welding errors, and reduce internal stress. effects of stress

Active Publication Date: 2021-03-16
JIANGSU JINGHU HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a cantilever-type steel box girder manufacturing process, which can solve the problems of large welding errors and large internal stress in the processing and manufacture of general cantilever-type steel box girders.

Method used

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  • Manufacturing process of cantilever type steel box girder
  • Manufacturing process of cantilever type steel box girder
  • Manufacturing process of cantilever type steel box girder

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0020] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to a manufacturing process of a cantilever type steel box girder. In the manufacturing process, cantilevers and cross ribs which are alternately arranged are spliced firstly, during welding, the joint positions of the cross ribs and the cantilevers are welded firstly, and errors generated by alternate welding are reduced while the strength is guaranteed; and in addition, perpendicularity of the cross ribs is guaranteed by welding the butt joint positions of the cross ribs and a bottom plate, finally, the structures of the cantilevers and the bottom plate are welded, and therefore the internal stress of the cantilevers can be reduced, and the welding errors of cantilever welding are reduced.

Description

technical field [0001] The invention relates to the technical field of manufacturing box girders, in particular to a manufacturing process for cantilevered steel box girders. Background technique [0002] The steel box girder is formed by sequentially connecting multiple steel box girder cantilever structures. According to the technical characteristics and requirements of steel box girder construction, it is generally necessary to divide the cantilever structure of steel box girder into several sections (at least one cantilever section of steel box girder and at least one section of steel box girder) to be processed in the factory and then transported to the construction site Carry out segmental hoisting. The specific assembly process of the cantilever structure of the steel box girder is as follows: firstly, the steel box girder segment is placed at a predetermined position, and then the cantilever segment of the steel box girder is docked with the steel box girder segment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/00B23K101/28
CPCB23K31/02B23K37/00B23K2101/28Y02T10/40
Inventor 曾臻马顺忠厉栋王传武徐伟
Owner JIANGSU JINGHU HEAVY IND
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