T型刚构桥静载试验及性能评定

The Static Load Experimental and Performance Evaluation of A T-shaped Rigid Frame Bridge

本文以广东省境内的一座T型刚构旧桥为背景,通过建立有限元模型进行理论计算,以此为基础制订静载试验方案并进行现场加载,测试桥梁关键截面的挠度和应变数据,最后与理论数据进行对比,对桥梁的受力状态和承载能力进行综合评定,并得到相应的结论,可对同类型的桥梁提供参考。

Taking one old T-shaped rigid frame bridge which is located in Guangdong Province as an example,we establish the finite element model and get the theoretical data,on the basis of which we make the static load experimental scheme to do the spot test.Within the experimental,we get the deflection and strain data of the key section.By comparing with the theoretical data,the evaluation of the stress state and capacity can be got,then from the conclusion we can provide some reference for the bridges of same shape.