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总览 评价 林家浩 1，* ， 高强 1， ， 钟万勰 1， ， W.P. Howson 2， ， F.W.Williams 2， （ 1、 大连理工大学工程力学系； 2、 Cardiff School of Engineering，Cardiff University； ） 摘要： Soil-structure interaction emanating from seismic stat
林家浩1，*， 高强1，， 钟万勰1，， W.P. Howson2，， F.W.Williams2，
（
1、大连理工大学工程力学系； 2、Cardiff School of Engineering，Cardiff University； ）
摘要：
Soil-structure interaction emanating from seismic stationary random excitations is studied using the pseudo excitation method in combination with the precise integration method. The soil considered is a viscoelastic, transversely isotropic and layered half space and the structure which it supports is modelled by the finite element method. The excitation sources are random field ones that are stationary in the time domain and are located in the soil. The pseudo excitation method is used to transform this stationary random soil-structure interaction problem into a series of deterministic harmonic response analyses and the precise integration method is used to integrate the ordinary differential equations in the frequency-wavenumber domain. The power spectral densities of the soil-structure interaction responses caused by the stationary random excitations are investigated.
关键词：
分层介质；精细积分法；虚拟激励法；岩层-结构相互作用；随机波
Lin Jiahao1,*， Gao Qiang1,， Zhong Wanxie1,， W.P. Howson2,， F.W.Williams2,
（
1、Department of Engineering Mechanics,Dalian University of Technology； 2、Cardiff School of Engineering，Cardiff University； ）
Abstract：
Soil-structure interaction emanating from seismic stationary random excitations is studied using the pseudo excitation method in combination with the precise integration method. The soil considered is a viscoelastic, transversely isotropic and layered half space and the structure which it supports is modelled by the finite element method. The excitation sources are random field ones that are stationary in the time domain and are located in the soil. The pseudo excitation method is used to transform this stationary random soil-structure interaction problem into a series of deterministic harmonic response analyses and the precise integration method is used to integrate the ordinary differential equations in the frequency-wavenumber domain. The power spectral densities of the soil-structure interaction responses caused by the stationary random excitations are investigated.
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