Space curved surface special-shaped steel box girder bridge section and precise welding processing forming method thereof

Abstract

The invention discloses a space curved surface special-shaped steel box girder bridge section and a precise welding processing forming method thereof, and the section and the method solve the problemsthat a bridge deck surface is easy to bulge and deform and a space curved surface is not smooth in the prior art. The space curved surface special-shaped steel box girder bridge section comprises a steel box girder bridge bottom plate, a steel box girder bridge web plate, arc-shaped lower sealing plates on two sides of the steel box girder bridge, a steel box girder bridge top plate, a steel boxgirder bridge cantilever sealing plate, a first steel box girder bridge top plate and a second steel box girder bridge top plate. The space curved surface special-shaped steel box girder bridge section is firm, safe and durable, the appearance linear structure is smooth and attractive, and the dual functions of bridge bearing traffic and aesthetic appreciation can be effectively realized. The precise welding processing forming method comprises the steps of firstly blanking and processing and forming in a factory in units, then assembling from inside to outside and from bottom to top, completing welding of an internal vertical weld joint after assembling, then performing welding of a transverse weld joint, and controlling the position of an external part through accurate positioning of a web plate and a partition plate; and the precise welding processing forming method has smooth flow and can prevent the bridge section deck surface from bulging, deforming and being unsmooth.

Description

technical field [0001] The invention relates to a space curved special-shaped steel box girder bridge section and a precise welding processing forming method thereof. Background technique [0002] On urban roads, especially in landscape areas, the bridge structure needs to be designed as a space curved special-shaped structure. The bridge deck of the existing space curved special-shaped structure bridge is prone to roof bulging due to the structural design and construction of the bridge using conventional processing methods. , The assembly and welding of components cause problems such as deformation and unsmooth space surfaces. If the flatness of the bridge roof cannot be effectively controlled, the pavement layer (the bridge deck pavement is only 5mm thick) cannot cover the flatness defects, which may lead to uneven appearance of the bridge deck and local water accumulation. On the bridge structure, the space curved special-shaped structure is generally directly exposed. I...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a special-shaped steel box girder bridge section with a space curved surface and its precise welding and processing forming method, so as to solve the problems of bulging, deformation, and unsmooth space curved surface of the beam bridge deck in the prior art

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