Paper Information

Journal:   IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING   2008 , Volume 32 , Number B2; Page(s) 107 To 124.
 
Paper: 

SEISMIC 3D BEARING CAPACITY ANALYSIS OF SHALLOW FOUNDATIONS

 
 
Author(s):  MAJIDI A.R., MIRGHASEMI A.*
 
* SCHOOL OF CIVIL ENGINEERING, COLLEGE OF ENGINEERING, UNIVERSITY OF TEHRAN, I. R. OF IRAN
 
Abstract: 

In this research the Discrete Element Method is employed to determine the seismic three dimensional bearing capacity of rectangular foundations. A rigid but moving slip body resting on its base is assumed to define the failure mechanism under the footing. A soil mass enclosed in a three dimensional space with assumed failure surfaces is considered as several discrete blocks connected with Winkler springs. The geometry of the failure surface under the foundation is not fixed and can be altered due to all of the factors affecting the problem. This geometry is determined by six independent angles. The seismic loading can be applied to the soil mass, soil surcharge and foundation loading in a pseudo-static manner. This paper includes the derivation of 3D DEM formulation in a three dimensional state, and several examples solved by means of a developed DEM program to explain the capability of the method and to compare the results with the other methods.

 
Keyword(s): 3 DIMENSIONAL, BEARING CAPACITY, SHALLOW FOUNDATIONS/FOOTINGS, SEISMIC, PSEUDO-STATIC, DISCRETE ELEMENT METHOD
 
References: 
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