FOUNDATION STIFFNESS ESTIMATES AND EARTHQUAKE RESISTANT STRUCTURAL DESIGN

摘要：

The significance of the stiffness and strength of soil beneath a shallow foundation with respect to the earthquake performance of shallow foundations is illustrated. Within the context of performance based design it is proposed that instances of failure during the course of an earthquake are of little significance provided the residual displacements are acceptable. These conclusions are obtained from two entirely different methods of modeling of the foundation response each is shown to give similar results. One method is to use a macro-element model to develop a simple four degree of freedom model and the other uses structural analysis software which represents the shallow foundation as a bed of springs. The paper emphasizes that sophisticated numerical modeling of earthquake response is of little value without comparable site investigation effort.

关键词： Earthquake resistant shallow foundation design LRFD macro-element spring bed shallow foundation model design recommendations residual displacement.

作者: M.J.Pender L.M.Wotherspoon J.C.W.Toh

作者单位: Professor,Dept.of Civil and Environmental Engineering,University of Auckland,Auckland.New Zealand Research Fellow,Institute for Earth Science and Engineering,University of Auckland,Auckland.NZ Master of Engineering Student,University of Auckland,Auckland.NZ

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）