STABILITY ANALYSIS FOR ECCENTRICALLY LOADED FOOTINGS

This report presents a stability analysis based on a slip surface derived from experimental results for eccentrically loaded footings resting on sand. Preliminary two-dimensional tests were carried out on rigid wooden model footings using a stiffened perspex sided wooden container for the sand bed. Constant rate of strain tests to failure were carried out on all the models using a special roller and ball bearing arrangement to allow for the unrestrained movement and tilt for the models. Results of a larger number of these tests included the following observations: One sided failure occurs on the side of the eccentricity of the load; the size of the failure zone becomes smaller with increased eccentricity ratios; and, typical configurations exist for the failure surfaces for the cases of eccentricities within and outside the middle third of the footing. The authors concluded that the method of calculating the bearing capacity for centrally loaded footings analyzig the stability of slip surfaces can be extended to the case of eccentrically loaded footings. A close agreement exists between the theoretical and experimental values for the plane strain case. And, Meyerhof's effective width concept is adequate for smaller eccentricity ratios.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Purkayastha, R D
  • Char, A N
• Publication Date: 1977-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 647-651
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 103
  • Issue Number: GT-6
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Bearing capacity; Bearings; Eccentricity; Failure; Footings; Loads; Rollers; Sand; Slip surfaces; Stability analysis; Strain (Mechanics)
• Uncontrolled Terms: Eccentric loading; Two dimensional
• Old TRIS Terms: Ball bearings; Strains
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00165370
• Record Type: Publication
• Report/Paper Numbers: ASCE 13014 Proceeding
• Files: TRIS
• Created Date: Mar 7 1978 12:00AM