DYNAMICS OF BURIED PIPELINES.

被引：0
|
作者：
O'Leary, P.M. [1 ]
Datta, S.K. [1 ]
机构：
[1] Univ of Colorado, Dep of Mechanical, Engineering, Boulder, CO, USA, Univ of Colorado, Dep of Mechanical Engineering, Boulder, CO, USA
来源：
International journal of soil dynamics and earthquake engineering | 1985年 / 4卷 / 03期
关键词：
DYNAMICS - Analysis - MATHEMATICAL TECHNIQUES - Numerical Methods - SEISMIC WAVES - Evaluation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Estimation of peak stresses in buried pipelines due to ground shaking is studied in this paper. Particular attention has been focused on the analysis of the stiffness of springs replacing the surrounding ground. It is shown here that these stiffnesses are functions of the wavelengths and frequencies of the seismic disturbance. They also depend nontrivially on the rigidity and the Poisson's ratio of the surrounding ground. Numerical results for the stiffnesses are presented graphically showing these dependencies. Numerical results are also presented for the maximum axial and hoop stresses induced in a pipeline due to moving and fixed axial and transverse loads. It is found that these depend primarily on the ratio (M) of the rigidities of the ground and the pipe. The stress amplitudes increase as M decreases.
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页码：151 / 159
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