预应力混凝土下承式桁架连续刚构桥的动力特性分析

The dynamic property analysis of a prestressed concrete bridge with a systemof ghrough truss and continuous rigid frame

本文采用大型通用有限元软件ANSYS针对水口闽江特大桥预应力混凝土下承式桁架连续刚构体系进行动力特性理论分析。在此基础上,采用环境随机振动法进行动载试验,并对理论分析计算值和动测试验值进行比较分析。

With the common large finite element soft-ANSYS,this paper analysize the dynamic property of a prestressed concrete bridge with a system of through truss and continuous rigid frame,which built in shuikou and span minjiang.Through the ambient vibration testing,this paper make a comparative analysis of the theo-retical conclusion and experimental data.