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

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层状地基任意形状刚性基础动力响应求解

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论文类型:期刊论文

发表时间:2022-06-30

发表刊物:力学学报

所属单位:建设工程学部

卷号:44

期号:6

页面范围:1016-1027

ISSN号:0459-1879

摘要:An approach based on integral transformation, dual form of wave motion
   equation and precise integration method is proposed for the solution of
   the dynamic stiffness matrices of rigid foundation of arbitrary shape on
   multi-layered half-space. Firstly, to take advantage of the axisymmetric
   property of the load-displacement field of subdisk-element in
   cylindrical coordinates, the equation of Green's influence function for
   multi-layered half-space is formulated. Then the dual form of the
   uncoupled wave motion equation in the frequency-wave number domain for
   in-plane motion and out-of-plane motion is established. It can be solved
   quite accurately by the precise integration method. Finally, the contact
   interface between the rigid foundation and the multi-layered half-space
   is discretized into a number of subdisk-elements, and the
   matrix-equation of translational and rotational dynamic stiffnesses of
   the foundation is evaluated. The proposed method is efficient, accurate
   and computationally stable. It is well suited to the dynamic interaction
   analysis of rigid foundation of arbitrary shape on complex multi-layered
   half-space. Numerical examples clearly demonstrate the superiority of
   the proposed approach.

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