双曲拱桥加固后荷载试验分析与承载力评定

Analysis of Load Test and Evaluation of Bearing Capacity after Reinforcement of Double-curve Arched Bridge

该文以一座3孔30m的双曲拱桥(土山桥)为实例,根据该桥型的结构特性和加固特点,确定合理的荷载试验方案并进行测试。利用大型通用有限元结构分析程序ANSYS对该桥进行静力和动力计算,并与试验结果进行对比分析,从而对该双曲拱桥的加固效果和承载力进行综合评定。

The article takes a 3-span 30-m double-curve arched bridge(Tushan Bridge)as an example to determine the reasonable load test scheme and to test based on the structural features and reinforcement characteristics of this bridge.The large-sized common finite element structural analysis program ANSYS is used to carry out the static and dynamic calculations of the bridge,and to analyze and compare with the test result so as to carry out the comprehensive evaluation of the reinforcement result and the bearing capacity of this double-curve arched bridge