简支转连续预应力桥梁的仿真

Simulation of prestressed bridge transformed from simple-supported system into continuous system

介绍了利用大型有限元软件Ansys,对简支转连续的预应力桥梁上部结构进行三维仿真计算与分析的一种有效方法,并以某大型公路桥梁工程为例,结合其实际施工过程及使用工况,分阶段地对预应力桥梁进行了仿真计算,列出了部分的计算结果并作了简要分析.为同类桥梁的仿真分析提供技术参考.

A simulation method of three dimensional structure of prestressed bridge upper structure is introduced by using the three dimensional finite element analysis program Ansys. As an example, the simulative processes of a prestressed concrete bridge, which was transformed from simple-supported systems into continuous system, were presented according to its real constructing courses and using status. For the reference to the simulative analysis of the same kind of bridges,partial results of the example are introduced as well.