Simulation of Spatial Variation of Seismic Ground Motions and Its Engineering Applications

摘要：

　　Spatial variation of seismic ground motions is investigated and simulated employing a univariate model of phase model spectrum built up on a time argument associated with the concept of starting-time of phase evo lution of frequency components.A wave-group propagation formulation is introduced to reduce the computa tional effort on the simulation that overcomesthe difficulties included in the identification of standard starting time of phase evolution just one for hundred frequency components.The Northridge earthquake wave obeserved at the type-Ⅱ site is investigated, and a suspension bridge with main-span distance 600 m is em ployed as a numerical example.Two cases involving consistent and inconsistent seismic excitations are in cluded.Numerical results prove the validity and applicability of the simulation scheme.

作者: Ding Wang Yongbo Peng Jie Li

作者单位: School of Civil Engineering, Tongji University State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University School of Civil Engineering, Tongji University ; State Key Laboratory of Disaster Reduction in Civil

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 202-208

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）