DISCRETE MODELS FOR VERTICAL VIBRATIONS OF SURFACE AND EMBEDDED FOUNDATIONS

被引：67

作者：

DEBARROS, FCP

LUCO, JE

机构：

[1] Department of Applied Mechanics and Engineering Sciences, University of California, San Diego, California, 92093, La Jolla

来源：

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS | 1990年 / 19卷 / 02期

关键词：

D O I：

10.1002/eqe.4290190211

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A five‐parameter discrete model that approximates the dynamic force4isplacement relationship for rigid foundations undergoing vertical vibrations on a uniform elastic half‐space is presented. The model involves a combination of two springs, two viscous dampers and a mass. Values of the parameters for circular, square and rectangular foundations placed on the surface or embedded in an elastic half‐space are listed. The parameters are obtained by minimizing the discrepancy between the force4isplacement relation for the model and that obtained by solution of the mixed boundary‐value problem of the rigid foundation on an elastic half‐space. The definition of an appropriate input motion to represent wave excitation is also discussed. The input motion to the discrete model differs from the input motion that should be used in a continuum model. Copyright © 1990 John Wiley & Sons, Ltd

引用

页码：289 / 303

页数：15

共 30 条

[1]

Apsel R.J., 1979, THESIS U CALIFORNIA

[2] IMPEDANCE FUNCTIONS FOR FOUNDATIONS EMBEDDED IN A LAYERED MEDIUM - AN INTEGRAL-EQUATION APPROACH [J].

APSEL, RJ ;

LUCO, JE .

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, 1987, 15 (02) :213-231

[3]

BARKAN DD, 1962, DYNAMICS BASES F

[4] FORCED VIBRATIONS OF A RIGID CIRCULAR PLATE ON A SEMIINFINITE ELASTIC SPACE AND ON AN ELASTIC STRATUM [J].

BYCROFT, GN .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1956, 248 (948) :327-368

[5]

DAY SM, 1977, THESIS U CALIFORNIA

[6]

DOMINGUEZ J, 1978, MIT R7820 DEP CIV EN

[7]

FUKUZAWA R, 1985, 8TH T INT C STRUCT M, P221

[8]

Hsieh TK, 1962, P I CIVIL ENG, V22, P211

[9] DYNAMIC-RESPONSE OF 3-D EMBEDDED FOUNDATIONS BY THE BOUNDARY ELEMENT METHOD [J].

KARABALIS, DL ;

BESKOS, DE .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1986, 56 (01) :91-119

[10]

Luco J.E., 1971, J ENG MECH DIVISION, V97, P1381, DOI DOI 10.1061/JMCEA3.0001467

← 1 2 3 →