西北地震学报2011，Vol.33Issue(z1)：360-365,6.
地下结构地震反应分析中材料非线性的影响
Effect of the Material Nonlinear Property on Seismic Response Analysis of Underground Structure
摘要
Abstract
Based on the static and dynamic combination analysis method, a nonlinear seismic response analysis model for underground structure is established, considering the contact effects between soil and underground structure and the nonlinear property of materials. The seismic response of the underground structure of a subway project is simulated by using the general finite element software ANSYS, and the nonlinear response rule of the underground structure is discussed and the effect of nonlinear property of materials on the seismic response of the underground structure is also analyzed. The results show that the nonlinear properties of soil and structure have significant influence on the seismic response of underground structure, by increasing the seismic response of the nodes severely, changing the positions of the maximum stress and strain, and reversing the stress state of some nodes. However, it has little effect on the node displacement, velocity and acceleration.关键词
地下结构/土—结构接触/材料非线性/地震非线性反应Key words
Underground structure/Soil-structure contact/Material nonlinearity/Seismic response analysis分类
土木建筑引用本文复制引用
单华廷,李立云,杜修力..地下结构地震反应分析中材料非线性的影响[J].西北地震学报,2011,33(z1):360-365,6.基金项目
国家自然科学基金(50808006,90715035):国家重点基础研究发展(973)计划(2007CB714203) （50808006,90715035）
北京市优秀人才项目(PYZZ090424001645) （PYZZ090424001645）
