大跨度系杆拱桥荷载试验方案与计算分析

Loading Test and Calculation Analysis for Tied Arch Bridge

本文对大跨系杆拱桥荷载试验方案及其计算进行了分析。首先,对桥梁荷载试验原理做了简要介绍,又以某大跨系杆拱桥为依托,对具体的静载试验和动载试验具体方案做了阐述;最后,采用Midas Civil有限元计算软件对静载试验及动载试验相关指标进行了初步分析。结合具体的试验结果,即可实现对桥梁承载力、裂缝、刚度及动力特性的评定。本文为同类桥梁的评定提供了依据,具有一定的工程实践意义。

This paper is about loading test and calculation analysis for tied arch bridge. Firstly, the principal of loading test is introduced briefly; And then, specific methods on static and dynamic tests are stated;Finally, preliminary analysis about static and dynamic test is conducted by using FEA software-Mi-das Civil. Combined specific test results, the information of bearing capacity, stiffness and cracks can be obtained. There-fore, the healthy evaluation of this kind of bridges is clear. This paper provides the basis for healthy evaluation of the same kind of bridges.