【作者】 朱三凡； 宗周红； 夏樟华；

【Author】 Zhu Sanfan~1,Zong Zhouhong~2,Xia Zhanghua~2 (1 Xiamen Center For Quality Test Of Construction Engineering Co Ltd,Fujian Xiamen 360001;2 College of Civil Engineering,Fuzhou University, Fuzhou,Fujian,350108.)

【机构】 厦门市建筑工程检测中心有限公司； 福州大学土木工程学院；

【摘要】 以福建省省道三郊线永春内阁大桥为工程背景,首先介绍了实桥环境振动试验和实验模态分析,进而利用ANSYS建立了全桥三维有限元模型并进行了理论模态分析和模型参数修正,分析了大跨度钢筋混凝土拱桥的动力特性。此类测试与分析有助于桥梁的状态评估和维修加固。更多还原

【Abstract】 An ambient vibration field-testing on a reinforced concrete box-section arch bridge,named Neige arch bridge located in the provincial way connected Sanming and Jiaowei in Fujian Province,was conducted.And the experimental modal analysis was also carried out.The 3-D finite element model(FEM) was constructed by using ANSYS program and a theoretical modal analysis was then performed to generate dynamic characteristics of the reinforced concrete box-section arch bridge.It is further demonstrated that the results from the FEM agree well with that from the field testing.This kind of testing and analysis can serve as a basis for condition evaluation of the bridge.更多还原