Computers and Concrete

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Nonlinear finite element analysis of four-pile caps supporting columns subjected to generic loading

  • de Souza, Rafael Alves (Departamento de Engenharia Civil, Universidade Estadual de Maringa) ;
  • Kuchma, Daniel Alexander (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign) ;
  • Park, Jung-Woong (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign) ;
  • Bittencourt, Tulio Nogueira (Departamento de Engenharia de Estruturas e Fundacoes, Escola Politecnica da Universidade de Sao Paulo)
  • Received : 2006.12.03
  • Accepted : 2007.09.01
  • Published : 2007.10.25
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Abstract

The paper presents the development of an adaptable strut-and-tie model that can be applied to the design or analysis of four-pile caps that support axial compression and biaxial flexure from a supported rectangular column. Due to an absence of relevant test data, the model is validated using nonlinear finite element analyses (NLFEA). The results indicate that the use of the proposed model would lead to safe and economical designs. The proposed model can be easily extended to any number of piles, providing a rational procedure for the design of wide range of pile caps.

Keywords

References

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