Comparative analysis of seismic response characteristics ofpile-supported structure
来源期刊：中南大学学报(英文版)2010年第6期
论文作者：孔德森 李纯洁 张伟伟 孟庆辉
文章页码：1370 - 1375
Key words：pile-supported structure; pile-soil interaction; seismic response; spectrum characteristics; finite element method
Abstract: In order to analyze the seismic response characteristics of pile-supported structure, a computational model considering pile-soil-structure interaction effect was established by finite element method. Then, numerical implementation was made in time domain. At the same time, a simplified approximation for seismic response analysis of pile-soil-structure system was briefly presented. Furthermore, comparative study was performed for an engineering example. Through comparative analysis, it is shown that the results obtained by the simplified method well agree with those achieved by the finite element method. These results show that spectrum characteristics and intensity of input earthquakes are two important factors that can notablely influence the seismic response characteristics of superstructure. When the input ground motion acceleration amplitude gradually increases from 1 to 4 m/s2, the acceleration of pier top will increase, but it will not be simply proportional to the increase of input acceleration amplitude.
