TECHNICAL NOTES
Oct 1, 1983
Design Footing Area with Biaxial Bending
Authors: Ramon Jarquio, M. ASCE, and Victor JarquioAuthor Affiliations
Publication: Journal of Geotechnical Engineering
Volume 109, Issue 10
Abstract
A direct method of proportioning a rectangular footing area subjected to biaxial bending is proposed as an alternative to the trial and error method of solution. Formulas for the dimensions of the footing area are derived using the ordinary flexure formula and the limiting conditions that the maximum and minimum pressures are developed at the critical corners which are diagonally opposite each other. In addition, the maximum pressure is equated to the allowable bearing capacity of the soil while the minimum pressure is equated to zero. This condition assures the validity of the application of the flexure formula since the footing area is in full compression. Th analysis yielded the basic relationship of the footing area dimensions as 12 times the eccentricities of the total vertical load about the centroidal axes while the minimum area is controlled by the allowable soil bearing capacity. Once the area of the footing has been determined, adjustments can be made in the magnitude of the total vertical load to satisfy the above relationships.
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References
1.
Peck, R. B., Hanson, W. E., and Thornburn, T. H., Foundation Engineering, John Wiley & Sons, Inc., 1953, pp. 330–331.
2.
Teng, W. C., Foundation Design, Englewood Cliffs, N.J., 1962, pp. 130–134.
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Copyright © 1983 ASCE.
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Published online: Oct 1, 1983
Published in print: Oct 1983
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Ramon Jarquio, M. ASCE
Civ. Engr., Planning Div., New York City Transit Authority, 370 Jay St., Brooklyn, New York, N.Y. 11201
Victor Jarquio
Struct. Engr., Wilson and Company, 631 E. Crawford St., Salina, Kans. 67401
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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