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http://dx.doi.org/10.12652/Ksce.2015.35.1.0153

Design of Mat Foundation by Simplified Flexible Method Using Regression Analysis  

Moon, Kyoungtae (Jeju National University)
Park, Sangyeol (Jeju National University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.1, 2015 , pp. 153-164 More about this Journal
Abstract
The methods of design of mat foundation may be classified as the rigid method and the flexible method according to the assumptions used. In the rigid method, the mat is assumed to be infinitely rigid and the contact pressure is assumed planar distribution. However, the contact pressure is not planar but curved surface because the real mat is not rigid. Therefore, it is not precise to analyze the mat foundation using the rigid method, and so there is no choice but to accept an error. On the other hand, in the flexible method, the mat is considered as the plate on the elastic foundation. This elastic plate theory is for the infinite plate acting a concentrated load on the elastic foundation. However, the functions for the moment, shear, and the deflection by the flexible method are very complex, there are many difficulties for the designer to use them. Also, it is impossible to use the design aid figures as a substitute of the complex functions, because they do not cover the values at the critical sections for the moment and shear. Therefore, in this research, the simplified functions for the moment, shear, and the deflection are proposed by regression analysis for an designer to use easily the flexible method. The simplified functions are very accurate and very ease to use.
Keywords
Mat foundation; Rigid method; Flexible method; Plate theory; Elastic foundation; Regression analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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