Linear and nonlinear elastic analysis of closely spaced strip foundations using Pasternak model

被引：0
作者：
Priyanka Ghosh
S. Rajesh
J. Sai Chand
机构：
[1] Indian Institute of Technology,Department of Civil Engineering
来源：
Frontiers of Structural and Civil Engineering | 2017年 / 11卷
关键词：
bearing capacity; linear and non-linear elasticity; foundation; interaction effect; numerical modeling; Pasternak model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, an attempt is made to determine the interaction effect of two closely spaced strip footings using Pasternak model. The study considers small strain problem and has been performed using linear as well as nonlinear elastic analysis to determine the interaction effect of two nearby strip footings. The hyperbolic stress-strain relationship has been considered for the nonlinear elastic analysis. The linear elastic analysis has been carried out by deriving the equations for the interference effect of the footings in the framework of Pasternak model equation; whereas, the nonlinear elastic analysis has been performed using the finite difference method to solve the second order nonlinear differential equation evolved from Pasternak model with proper boundary conditions. Results obtained from the linear and the nonlinear elastic analysis are presented in terms of non-dimensional interaction factors by varying different parameters like width of the foundation, load on the foundation and the depth of the rigid base. Results are suitably compared with the existing values in the literature.
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页码：228 / 243
页数：15
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