Construction method of large-span folded steel roof truss

Abstract

The invention relates to a construction method for a large-span folded-plate shaped steel roof truss, which comprises a roof truss support, a plurality of normal ∨-shaped steel frame units, a plurality of inverted ∧-shaped steel frame units and aerial scattered units to form an integral roof steel frame in the shape of a folded plate , is characterized in that: the construction method is to use the ground to process the ∨-shaped steel frame unit and the inverted ∧-shaped steel frame unit, and hoist the inverted ∧-shaped steel frame unit and the normal ∨-shaped steel frame unit as a whole and the aerial scattered units. Between the inverted ∧-shaped steel frame unit and the normal ∨-shaped steel frame unit, aerial assembly technology is used for aerial assembly; the advantages are: to solve technical problems such as ground assembly and aerial in-situ measurement speed, accuracy, deformation, etc., and realize the installation accuracy of steel structures. , quality and safety, effective control of project progress; reasonable division of roof steel frame hoisting units, the use of integral hoisting, reducing high-altitude operations, can greatly improve the use efficiency, safety factor, construction quality and construction efficiency of large-scale lifting machinery, reduce construction costs cost.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a construction method for a large-span folded-plate section steel roof truss. Background technique [0002] In recent years, the form of large and complex space steel structure has developed rapidly in the buildings of our country, and its application range has become wider and wider. The reason is that it has reasonable stress and high rigidity, and is suitable for buildings with large spaces and large spans. At the same time, as the manifestations of spatial steel structures become complex and diverse, and a large number of curved surface shapes appear, the construction difficulty is increased, and the requirements for building construction are also increased. The process deployment, measurement and positioning, structural stress and unloading deformation during the construction of the square tube truss will have a great impact on the quality of the installati...

AI Technical Summary

Problems solved by technology

Solve technical problems such as ground assembly and aerial in-position measurement speed, accuracy, deformation, etc., and realize effective control of steel structure installation accuracy, quality and safety, and project progress; rationally divide roof steel frame hoisting units, and adopt overall hoisting to reduce high-altitude Operation can greatly improve the efficiency, safety factor, construction quality and construction efficiency of large-scale hoisting machinery, and reduce construction costs

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