Design of Biaxially Loaded Rectangular Footings

by N. Shanmughasundaram, (M.ASCE), Proj. Engr.; Dept. of Struct. Engrg., Bellante, Clauss, Miller and Nolan, Inc., Consulting Engrs., Scranton, PA,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 10, Pg. 2157-2165

Document Type: Journal Paper


A biaxially loaded rectangular footing, loaded such that a portion of its area is not exerting pressure on the soil, does not lend itself to a direct or closed-form solution. Numerical methods are available for analysis of such footings. Charts to aid in the design of the footings are presented. These charts are based on equations of equilibrium. Linear and parabolic stress-strain distributions of soil are considered. The use of charts is illustrated by two examples.

Subject Headings: Biaxial loads | Footings | Soil pressure | Closed form solutions | Numerical analysis | Numerical methods | Foundation design | Equilibrium

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