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
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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