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简化桩模型在土-结构相互作用分析中的应用
引用本文:尹华伟,易伟建.简化桩模型在土-结构相互作用分析中的应用[J].湖南大学学报(自然科学版),2007,34(2):11-15.
作者姓名:尹华伟  易伟建
作者单位:湖南大学,土木工程学院,湖南,长沙,410082
基金项目:国家自然科学基金资助项目(50378034),湖南大学校基金重点项目(521101889)
摘    要:采用简化桩模型和多分段杆单元模型来模拟独立桩承框架结构.对一幢七层独立桩承钢筋混凝土框架结构进行了考虑与不考虑土-结构相互作用效应影响的结构自振特性对比分析.然后依次输入9条地震波加速度记录,对结构进行了考虑与不考虑土-结构相互作用效应影响的地震反应时程分析.由大量的数值分析结果总结了土-结构相互作用对结构地震反应的影响规律,并用算例对部分结论进行验证.

关 键 词:土-结构相互作用  动力时程分析  框架  简化桩模型  多分段杆单元模型  地震反应
文章编号:1000-2472(2007)02-0011-05
修稿时间:2006-03-21

Application of Simplified Pile Model in Soil-Structure Interaction Analysis
YIN Hua-wei,YI Wei-jian.Application of Simplified Pile Model in Soil-Structure Interaction Analysis[J].Journal of Hunan University(Naturnal Science),2007,34(2):11-15.
Authors:YIN Hua-wei  YI Wei-jian
Institution:College of Civil Engineering, Hunan Univ,Changsha, Hunan 410082, China
Abstract:Simplified pile model and multi-segment beam element model were adopted to simulate frames supported by some isolated piles.The free vibration characteristics of a seven-story reinforced concrete(RC) frame supported by some isolated piles were studied.And then nine earthquake acceleration records were put in and the soil-structure interaction(SSI) responses were analyzed by time history analysis method respectively with and without the consideration of the soil-structure interaction effect.Finally,the laws of SSI effect on structural seismic response were summarized based on a large number of numerical analysis results,and the reliability of some of the conclusions was proved by numerical examples.
Keywords:soil-structure interaction  time-history analysis  frame  simplified pile model  multi-segment beam element model  seismic response
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