雁盐黄河大桥结构分析

摘要

This thesis is to analyse the frame which is directed at the Yanyan Huanghe bridge. SAP is used to calculate the internal force influ-ence field of main and sub arch ribs’critical section by way of utilizing finite element analysis program and principle of virtual work. The inner force envelope was drew. In the calculation of cross section,the effect of cross prestress and pedestrian load were considered,and various sorts of analysis and checking of existing state were done,for reference.%对雁盐黄河大桥成桥状态进行了结构分析，并采用 SAP 有限元分析程序，利用虚功原理方法计算了主拱肋及副拱肋控制截面的内力影响面，绘制了主拱控制截面的内力包络图，同时在桥梁横向计算中考虑横向预应力及人群活载的效应，对主桥控制截面进行了成桥状态各种分析和验算，以供参考。