80-meter-span width steel box girder in-plant full-span assembly double-width erecting construction method

Abstract

The invention provides an 80-meter-span width steel box girder in-plant full-span assembly double-width erecting construction method. The 80-meter-span width steel box girder in-plant full-span assembly double-width erecting construction method comprises the following steps that first, a bottom plate unit (2), a partition plate unit (3), an inclined web T beam unit (4) and a cantilever unit (5) are machined by applying a BIM technology; second, a steel box girder general-assembly bed jig (1) is arranged in a general-assembly area of a beam plant; third, the bottom plate unit (2), the partitionplate unit (3), the inclined web T beam unit (4) and the cantilever unit (5) are machined, and all components are assembled; fourth, acceptance inspection is conducted after general assembly of an 80-meter steel box girder (6) is completed; fifth, the steel box girder (6) is transported through a combined modular beam transporting vehicle (7); sixth, beam feeding is conducted; seven, beam fallingis conducted; and eight, the left and right widths of the full-span steel box girder are erected. The 80-meter-span width steel box girder in-plant full-span assembly double-width erecting construction method can be suitable for inland areas and can also be suitable for coastal areas, the field workload is decreased, human input is reduced under the current broad environment of high labor cost, and the cost is saved.

Description

technical field [0001] The invention relates to the application field of construction technology of long-span steel box girder bridges, in particular to a construction method for 80-meter-span wide-width steel box girders assembled with double widths in a factory. Background technique [0002] The steel box girder structure has the characteristics of large span, light weight, long service life, large box section torsional rigidity, small section height, and good integrity, which makes the steel box girder structure widely used in the design and construction of highways and municipal bridges It has become the first choice for long-span main girders. At present, the construction methods of long-span steel-concrete composite beams mainly include segmental prefabricated installation method and jacking method. Most of the large-span and large-tonnage whole-hole prefabricated installations are only suitable for bridges with shipping conditions, and the current domestic largest wh...

AI Technical Summary

Problems solved by technology

At present, bridge erection equipment at home and abroad is mainly aimed at concrete beams, especially heavy bridge erection equipment, which needs to be combined with heavy lifting equipment or side beam transport and lifting equipment, which has a small application range, limited transportation conditions, and high requirements for bridge machines. Compared with bridge crane bridge technology, there are more restrictions

Images