NATURAL VIBRATION ANALYSIS OF CONTINUOUS HORIZONTALLY CURVED GIRDER BRIDGES USING DQEM

摘要：

The differential quadrature element method (DQEM) is applied to computation of the eigenvalues of small amplitude natural vibration for continuous horizontally curved girder bridges with rigid piers in this paper. The DQEM uses the differential quadrature technique to discretize the governing differential eigenvalue equations defined on each member, the transition conditions defined on the inner-element boundary of two adjacent members and the end conditions of the continuous curved girder. Natural frequencies are calculated for a two-equal-span, continuous, curved, uniform girder bridge, and are compared with existing exact solutions by another method. Finally, parametric results for the effects of section gyration radius and flexure-torsion stiffness ratio on five different end conditions, to the out-of-plane natural frequencies of two-equal-span, continuous,curved girder bridges, are presented in dimensionless form.

关键词： natural vibration analysis continuous curved girder bridge differential quadrature element method

作者: LI Hongjing WANG Tong WEI Shuangke

作者单位: College of Civil Engineering, Nanjing University of Technology, Nanjing, China Midas Information Technology Co., Ltd., Guangzhou, China

会议类型: 国际会议

会议名称: 14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）