Research Article
Aug 1969
Bearing Capacity of Concrete Blocks or Rock
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VIEW THE REPLYAuthors: W.F. Chen, AM.ASCE, and D.C. Drucker, F.ASCEAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 95, Issue 4
Abstract
The limit theorems of the generalized theory of perfect plasticity are applied to obtain bearing capacity in two dimensions (strip loading or rigid punch) and in three dimensions (circular and square punches). With the safe assumption that concrete or rock is unable to take any tension, the bearing capacity is shown to be just the unconfined compressive strength of the column of material directly under the load. When a small but significant tensile strength is assumed, along with the Mohr-Coulomb surface for failure in compression taken to represent a perfectly plastic yield surface, the predicted capacity is found to be in good agreement with published test results. The influence of friction in this class of problems is also analyzed as is the limited applicability of so drastic an idealization of the real behavior of a material as brittle as concrete or rock.
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Published In
Journal of the Engineering Mechanics Division
Volume 95 • Issue 4 • August 1969
Pages: 955 - 978
Copyright
© 1969 American Society of Civil Engineers.
History
Published in print: Aug 1969
Published online: Feb 3, 2021
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Authors
Affiliations
W.F. Chen, AM.ASCE
Asst. Prof., Dept. of Civ. Engrg., Lehigh Univ., Bethlehem, Pa.; formerly Researcr Asst. Brown Univ., Providence, R.I.
D.C. Drucker, F.ASCE
Dean, College of Engr., Univ. of Illinois, Urbana, Ill.; formerly L. Herbert Ballot University Professor, Brown University, Providence, R.I.
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