基于Midas的双曲拱桥有限元分析及承载力评估  

Finite Element Analysis and Load-bearing Capacity Evaluationon of a Two-way Curved Arch Bridge Based on Midas

作　　者：熊子君[1] 覃继平 胡帮义 邹艳花 杨勇[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]中南林业科技大学土木工程学院,湖南长沙410004

出　　处：《盐城工学院学报（自然科学版）》2016年第1期49-54,共6页Journal of Yancheng Institute of Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51278137)

摘　　要：以广州市某年代久远、材料老化、结构破损严重的双曲拱桥为工程背景,采用Midas软件对其进行有限元分析,依据分析结果制定荷载试验方案;通过试验数据和理论结果的对比分析,对桥梁的承载能力进行综合评估与鉴定。结果表明:拱桥外观状况总体较差,静力工作性能较差、振动响应较大,桥梁承载能力不能满足"汽—15级"荷载等级的要求,建议进行拆除处理。Given that current lots of two-way curved arch bridges have been serving a long time,the structural material has some serious deterioration,and has an inadequate natural endowment. In the engineering background of a two-way curved arch bridge in Guangzhou,the finite element analysis of this bridge has been studied by making use of Midas software. According to the analysis results,the load testing experiment plan was made. Based on the comparison and analysis of test data and calculating data,the load-bearing capacity was processed by comprehensive evaluation and appraisal. It shows that the bridge appearance is bad,the static behavior is very poor,and the bridge dynamic response is large. The bridge bearing capacity can＇t meet the requirements of load of Grade20 of automobile. At last,a suggestion of demolishing this bridge is made.

关 键 词：双曲拱桥 MIDAS 桥梁检测 荷载试验 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]