Welding deformation control methods are diverse and can be applied flexibly in different situations. Due to the complexity of the welding process and the ever-changing morphology of steel structures, the search for efficient control methods has always been the focus of research in the field of structural steel welding.

冷却至原始温度后，整个接头区焊缝及近缝区的拉应力区与母材在压应力区数值达到平衡，这就产生了结构本身的焊接残余应力。 2）焊接热输入的影响：一般情况下，热输入大时