According to the problem that the impact load generated by large steel industries affects the area load curves, the paper introduces a method to pre-process the impact load using wiener filtering.
With the welding spot fatigue lifetime pre-estimation method, by combination of the finite element analysis and stress calculation, the welding spot fatigue damage under actual load can be calculated.
采用焊点疲劳寿命预估方法，通过有限元分析并结合应力计算，即可计算出实际载荷工况下的焊点疲劳损伤。
3
The shortcomings of the traditional modeling methods, the equivalent loadmethod and the load balance method, in external pre-stressed concrete bridges were analyzed.