昆明新机场航站楼钢彩带对接焊施工技术

Construction Technology of Butt Welding of Steel Ribbon in Kunming New Airport Terminal

异形空间彩带对接焊施工技术主要解决了复杂箱形结构的对接焊技术难题,通过开设合理的焊接工艺孔确保焊接位置,采取合理的焊接顺序减少焊接残余应力,确保对接焊质量。同时,通过采取焊接口预热、控制层温、控制后热和进行保温等措施,以及采取合理的焊接顺序和进行焊接加固,确保了厚板的焊接质量。

Construction technology of butt welding of special space steel ribbon can solve the problem of butt welding in complex closed box-shape structure.Setting up rational technique hole can assure correct welding location,and using rational welding sequence can reduce welding residual stress to assure welding quality.To assure the thick plate＇s welding quality,some measures are adopted such as preheat of welding mouth,layer temperature and postheat control,heat preservation,adopting rational welding sequence and welding reinforcement.