Method for manufacturing roofing truss

A manufacturing method and truss technology, which are applied to truss-type structures, truss beams, joists, etc., can solve the problems of truss installation and welding work surfaces, difficult to guarantee positioning accuracy, low work efficiency, etc., so as to shorten engineering time and reduce Working face, the effect of improving processing efficiency
CN101691797AActive Publication Date: 2010-04-07JIANGSU HUNING STEEL MECHANISM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU HUNING STEEL MECHANISM
Publication Date
2010-04-07

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Abstract

The invention discloses a method for manufacturing roofing truss. The truss is constructed by truss nodes which are formed by assembling truss members by welding. The manufacturing steps are: decomposing an integral truss into the truss members in a computer, and manufacturing the truss members; manufacturing a bed-jig for assembling by welding; locating an upper chord, a lower chord and a taper transition section on the bed-jig, hoisting and locating brackets of sub-trusses and welding; hoisting and locating brackets of straight web members and welding; hoisting and locating brackets of slant web members, welding and measuring; hoisting and locating drawing plates, mounting stiffening plate, and welding; re-hoisting to the bed-jig for measuring and calibrating; marking out residual lines at the end parts and butting; and integrally assembly. The upper chord and lower chord in the invention adopts integral manufacturing, dispenses with intermediate inlaying web member, thus shortening distance between the upper chord and the lower chord, reducing assembly area and improving processing efficiency; the computer is adopted to collect coordinate data, thus ensuring preciseness of mounting and locating, reducing working hours, and increasing economic benefit.
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Description

Technical field

[0001] The invention relates to a manufacturing method of a truss, in particular to a manufacturing method of a roof truss. Background technique

[0002] The station truss and awning truss of Wuhan Railway Station are all tube truss structures. The tube truss is composed of small diameter pipes such as Φ159mm, Φ180mm, Φ203mm and Φ245mm. Compared with the usual large-diameter trusses above Φ300mm, the smaller the tube diameter is the corbel of the component. The positioning accuracy requirements are high. In the traditional process, the truss uses web rods, the upper and lower chords are made separately, and the supplementary web rods are embedded in the middle of the upper and lower chords, which leads to the cumbersome assembly and welding process, the truss assembly and welding face is many, the assembly area is large, The efficiency is not high, and it is difficult to guarantee the accuracy of on-site installation and positioning. Summary of the invention [0...

Claims

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