Study on Welding Procedure of Cross-joint CJP Weld for Steel Truss Girder Hang-cable Bridge
With the improvement of welding technology,the quality of welding is more and more reliable.Cross joint CJP weld design is increasingly used in the key force transferring parts of steel structure of large span steel truss girder hang-cable bridge.This paper is based on the steel structure of the Zangkejiang hang-cable bridge with the main span of 1080m.Through the design requirements of the cross joint CJP weld of the steel truss beam hang-cable bridge,from the aspects of groove type and size,welding method,welding materials,welding specification parameters and nondestructive testing requirements,study and formulate the welding procedure of steel truss girder hang-cable bridge,and the welding quality control measures during the production,successfully guided the welding production of cross joint CJP weld of steel truss girder hang-cable bridge.It also accumulates experience for the welding production of other bridge structures in the future.