李建波

个人信息Personal Information

副教授

博士生导师

硕士生导师

任职 : 抗震所所长

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:水利工程系

学科:水工结构工程. 结构工程. 防灾减灾工程及防护工程

办公地点:大连理工大学建设工程学部4号实验楼402室

联系方式:jianboli@dlut.edu.cn

电子邮箱:jianboli@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

A precise integration approach for dynamic impedance of rigid strip footing on arbitrary anisotropic layered half-space

点击次数:

论文类型:期刊论文

发表时间:2013-06-01

发表刊物:SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

收录刊物:SCIE、EI

卷号:49

页面范围:96-108

ISSN号:0267-7261

关键字:Precise integration method; Layered anisotropic soil strata; Rigid strip footing; Dynamic impedance

摘要:The precise integration method (PIM) is proposed for the dynamic response analysis of rigid strip footing resting on arbitrary anisotropic multi-layered half-space. In the frequency domain, the governing equation of wave motion is converted into dual vector form of first-order ordinary differential equations which is solved by PIM. Each layer is divided into a large number (say, 2(N)) of mini-layers of equal thickness, within which characteristic matrices are assumed to vary following the Taylor series expansion to the fourth order. As a result, any desired accuracy of the displacements and stresses can be achieved by PIM. In addition, dual vector form equation makes it quite easily to combine two adjacent mini-layers into a new one. Each pass of combination reduces the total number of mini-layers by a half. The computational effort for the evaluation of the dynamic impedance of rigid strip footing can be reduced to a great extent. Numerical examples are provided to validate the efficiency and accuracy of the proposed approach. (C) 2013 Elsevier Ltd. All rights reserved.