巨型球体钢结构工程焊接技术

Research on welding technology of giant balls of steel structure engineering

根据安装顺序,严格执行焊接程序,消化创新了"鸟巢"钢结构合龙技术,实现了分层错45°合龙线的均匀布置,使合龙进展顺利;特别是根据主结构"统一对称、分区进行;自内而外、隔层焊接;分层合龙"的思想,焊接程序应当是:第一步,以柱为点,自内而外,分区进行,对称焊接;第二步,以梁为主,自内而外,先环后径,分区对称,逐步合龙;注意隔层焊接。其思想有一定焊接应用技术理论深度和较强的可操作性,值得建筑钢结构焊接工程推广应用。在厚板焊接技术中,防止层状撕裂有一定的突破和发展,特别在构件制作过程中,防止层状撕裂措施得到有效的落实和应用。全面实施"鸟巢"铸钢件焊接工艺而获得成功,铸钢件焊接质量优良,得到了业主和监理的一致好评。

According to the order, strictly carry out welding procedures, digestive innovation the ＂bird＇s nest＂ steel structure technology, to achieve the layered folded 45° fold line fault even decorate,make fold goes well;According to the structure ＂unified especially symmetrical,division ,and from the inside out ,layer between welding,layered fold＂ thought ,welding procedure shall be is ：the first step：column for the point, since the inside and outside ,zoning, welding symmetrically ;The second step：to the beam is given priority to,from inside and outside,after the first ring size,symmetry,and gradually fold division.Note ：the layer between the welding.The idea has certain theoretical depth and welding technology is feasible,and construction steel structure welding engineering application.In the thick plate welding technology, prevent layered tear has certain breakthrough and development ,especially in the production process, prevent members of layered tore his actions are effective implementation and application.The full implementation of the ＂bird＇s nest＂ cast steel welding process and success, cast steel welding quality, obtained the owner and supervision＇s consistent high praise.