主要是ANSYS命令流对成桥3年后恒荷载+活荷载工况1作用下的结构进行分析，对研究桥梁结构的朋友有很大帮助(ANSYS command flow is the main structure of the bridge 3 years later, live load + live load condition 1 Analysis of the structure, the bridge structure for the friends of great help)