地基土模型对土–结构相互作用体系地震响应影响的初步分析

doi:10.13722/j.cnki.jrme.2014.s2.109

Abstract
Figure/Table
References (9)
Related Citation (0)

Download: PDF (1425 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The soil is usually simplified as an elastic half space model and its influence is replaced by springs and dashpot elements，which is the most common method for soil-structure interaction(SSI) problem. The computation parameters of spring and dashpot elements are determined by soil impedance functions. But this is not the case in practical engineering because soil is not always a half space. Focusing on this problem，the aim of the paper is to study the influence of different soil modes on seismic response of soil-structure interaction system. Three kinds of soil models are considered，which are elastic half space model，stratum-over-rigid model and stratum-over- half-space model. The influence of different models on impedance functions are analyzed qualitatively firstly based on the formulas. Then the natural frequency，structure acceleration response and response spectra of structure acceleration are computed and analyzed by two specific cases. It is showed from the calculation results that the static stiffness impedance values from three models have some differences，but the dynamic stiffness impedance values are almost the same，and hence the influence of different soil models on system natural frequency and seismic response are not significant. The research results can provide references to the preliminary seismic design of soil-structure dynamic interaction system.

Key words： foundation engineering soil model soil-structure interaction(SSI) impedance function seismic response

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Guobo1
	YU Yanli2
	JIANG Cangru2
	HE Wei2

Cite this article:

WANG Guobo1,YU Yanli2,JIANG Cangru2, et al. PRELIMINARY ANALYSIS OF INFLUENCE OF SOIL MODELS ON SEISMIC RESPONSE OF SOIL-STRUCTURE INTERACTION SYSTEM[J]. , 2014, 33(S2): 4264-4270.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.109 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4264

[1]	KAUSEL E. Early history of soil-structure interaction[J]. Soil Dynamic and Earthquake Engineering，2010，30(9)：822-832.
[2]	RICHART F.E，HALL JR，WOODS R.D. Vibrations of soils and foundations[M]. Englewood cliffs，New Jersey：Prentice Hall Inc.，1970：194-215.
[3]	VELETSOS A. S，VERBICB. Vibration of viscoelastic foundations[J]. International Journal of Earthquake Engineering and Structure Dynamics，1973，2(1)：87-102.
[4]	VELETSOSA. S，VERBICB. Basic response functions for elastic foundations[J]. Journal of Engineering Mechanics Division，ASCE，1974，100(2)：189-202.
[5]	ARTUR P，KAUSEL E. Approximate formulas for dynamic stiffness of rigid foundations[J]. Soil Dynamics and Earthquake Engineering，1988，7(4)：213-227.
[6]	LUCO JE. Impedance functions for a rigid foundation on a layered medium[J]. Nuclear Engineering and Design，1975，31(2)：204-217.
[7]	DOBRY R，GAZETAS G. Dynamic response of arbitrary shaped foundations[J]. Journal of Geotechnical Engineering，1986，112(2)：109-135.
[8]	GAZETAS G. Formulas and charts for impedances of surface and embedded foundations[J]. Journal of Geotechnical Engineering，1991，117(9)：1363-1381.
[9]	GAZETASG. Analysis of machine foundation vibration：state of art[J]. Soil Dynamics and Earthquake Engineering，1983，2(1)：2-42.