哈尔滨松花江大桥索塔钢锚梁焊接变形的控制措施

哈尔滨松花江大桥为独塔双索面钢斜拉桥,斜拉索在主塔上半段采用钢锚梁进行锚固,因此,钢锚梁承力板是本桥索塔重要受力构件.索塔钢锚梁采用焊接箱形结构设计,大多为厚板,要求开坡口焊接.由于焊接是一个不均匀的加热和冷却过程,桥梁钢结构制作过程中不可避免地产生焊接应力和焊接变形.因此,钢锚梁承力板与锚垫板之间连接面的角度控制成为...

CONTROLLING MEASURE OF WELDING DEFORMATION OF CABLE AND TOWER STEEL ANCHOR BEAM OF SONGHUAJIANG RIVER BRIDGE IN HARBIN

Songhuajiang River Bridge in Harbin is cable-stayed steel bridge with a single tower and dual cable plane.Cable-stayed in the main tower of the first half of beams using steel anchor anchoring,therefore,the load-bearing plate of the steel anchor beam is an important force bars of the main tower of the bridge.The anchor beam is designed with welded-box-structure section,most joints are required groove welding because of thick plate.Since welding is a non-uniform heating and cooling process,the emergence of w...