SEISMIC BEHAVIOR OF LONG-SPAN CONNECTED STRUCTURES UNDER MULTI-SUPPORTED AND MULTI-DIMENSIONAL EARTHQUAKE EXCITATIONS

摘要：

　　More and more connected structures with long-span corridors have been constructed during these years.As the span of corridor increases,h is necessary to consider their earthquake behaviour and insure aseismic safety.Seismic response of long-span connected structure under multi-dimensional and multi-support excitation is investigated.Algorithms for seismic analysis of long-span connected structure under multi-dimensional and multi-support excitations are firstly established.Then,numerical simulation of a newly constructed connected structure with a span of 1 I0ta is performed.The influences of different earthquake components are compared and also the coupling effect is investigated under multi-dimensional earthquake excitation.Further,the influence of travelling-wave effect is analysed by comparing the seismic responses of the structure under multi-supported excitation with different apparent velocities.The results show that seismic responses will be increased if multi-dimensional earthquake excitation is considered,and wave-passage effect will greatly amplify the seismic responses of vertical earthquake components.

关键词： Long-span connected structure wave-passage effect multi-dimensional earthquake excitation multi-supported earthquake excitation

作者: Wei Lin Shanghong Chen Ai Qi

作者单位: School of Civil Engineering, Fuzhou University, Fuzhou 350108, P.R.China

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 1185-1189

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）