基于荷载试验的T型梁桥安全性评估

Safety Appraising for T-beam Bridge Based on Load Tests

对许多桥梁出现一些或大或小的病害,严重影响交通安全和运营情况,进行桥梁结构安全评估是十分必要的。针对某使用中简支梁桥,利用桥梁空间分析程序Midas Civil-2010建立桥梁结构空间有限元模型,分析结构在实际荷载作用下的反应,并结合桥梁现场检测和分析结果,依据现有规范的规定,评估该现役简支T型梁桥的安全性。

There would apear more or less mars in bridges,which would have the severe effects on traffic safety and transportations.Therefore,it is necessary to appraise the safety of bridges.Here,the 3D finite element model of a simply supported beam bridge in use is constructed by using Midas Civil-2010 to analyze the internal forces of the bridge structure under loads.Simultaneously,the safety of the simply supported T-beam bridge in use is apprased based on the results of the field inspection and analysis as well as the concerned prescripts of the criterion in existence.