预应力连续箱型桥梁静载有限元分析

Static Load Test and Finite Elment Analysis of Prestressed Continuous Box Girder Bridge

有限元法是根据变分原理求解物理问题的数值计算方法,SAP93是一个优秀的微机有限元前后处理系统ViziCAD,本文对一预应力连续桥梁运用SAP93进行了有限元分析,并结合该桥实测数据进行了对比分析,分析结果表明实验方案合理,实验数据真实可靠,而且也表明,所采用的有限元计算模型合理,加力位置正确,用有限元方法来分析桥梁的受力性能,其结果准确可靠.

SAP93 is an excellent ViziCAD processing system. A prestressed continuous box girder bridge is analysed by using finite element method. Through the analysis of test result, it is concluded that the test method is reliable and feasible, the actual force and deformation is less than design value. The results of finite element calculating are in agreement with the test results, which shows the feasible test scheme and the test data.