Shape Factors for Limit Loads on Square and Rectangular u
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Footings u7=[~l&L
Ming Zhu1 and Radoslaw L. Michalowski, F.ASCE2 :z\f.+MI
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Abstract: Earlier proposals for shape factors used in calculations of bearing capacity of square and rectangular footings are examined. uJOW%|ZN`
These proposals are based on empirical data for small footings, whereas a new suggestion for these factors presented in this paper is based C#~MR+;
on the elasto-plastic model of the soil and finite element analysis. The earlier factors modifying the contribution of cohesion and HIq1/)
overburden were found to be conservative, but acceptable in design. However, the earlier proposals for the shape factor that affects the cMl%)j-
contribution of the soil weight to the bearing capacity indicate contradictory trends, and the factor calculated in this paper is suggested as g=C<E2'i*
an alternative.
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DOI: 10.1061/(ASCE)1090-0241(2005)131:2(223) mb/[2y <
CE Database subject headings: Footings; Foundations; Bearing capacity; Shape; Finite element method; Three-dimensional '/H(,TM
analysis; Limit states.
