›› 2005, Vol. 26 ›› Issue (3): 500-504.

• Fundamental Theroy and Experimental Research • Previous Articles    

Analysis of ultimate bearing capacity of foundations by elastoplastic FEM through step loading

DENG Chu-jian, KONG Wei-xue, ZHENG Ying-ren   

  1. Department of Civil Engineering, Logistic Engineering University, Chongqing 400041, China
  • Received:2004-08-02 Online:2005-03-10 Published:2013-11-21

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Abstract: The ultimate bearing capacity of foundations is analyzed by elastoplastic FEM through step loading. As the loads increase, the foundation status changes from elasticity to plasticity gradually, and finally the numerical non-convergence occurs. The solution of a classical Prandtl example shows that different yield criterions affect the results greatly; and only the use of the proper yield criterion can lead to the precise results. Under plane strain condition, the best solution can be obtained while Mohr-Coulomb inside-tangent circle yield criterion and associated flow rule, or Mohr-Coulomb matched D-P yield criterion and associated flow rule are used; and it can be applied to the analysis of practical engineering.

Key words: ultimate bearing capacity of foundations, step loading, FEM, yield criterion, plane strain, associated flow rule, non-associated flow rule

CLC Number: 

  • TU 41
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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