Structural Engineering and Mechanics

  • 제14권2호
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  • Pages.119-133
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  • 2002
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The fiber element technique for analysis of concrete-filled steel tubes under cyclic loads

  • Golafshani, A.A. (Department of Civil Engineering, Sharif University of Technology) ;
  • Aval, S.B.B. (Department of Civil Engineering, North Carolina State University) ;
  • Saadeghvaziri, M.A. (Department of Civil and Environmental Engineering, NJIT)
  • 투고 : 2000.10.02
  • 심사 : 2002.05.09
  • 발행 : 2002.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

A beam-column fiber element for the large displacement, nonlinear inelastic analysis of Concrete-Filled Steel Tubes (CFT) is implemented. The method of description is Total Lagrangian formulation. An 8 degree of freedom (DOF) element with three nodes, which has 3 DOF per end node and 2 DOF on the middle node, has been chosen. The quadratic Lagrangian shape functions for axial deformation and the quartic Hermitian shape function for the transverse deformation are used. It is assumed that the perfect bond is maintained between steel shell and concrete core. The constitutive models employed for concrete and steel are based on the results of a recent study and include the confinement and biaxial effects. The model is implemented to analyze several CFT columns under constant and non-proportional fluctuating concentric axial load and cyclic lateral load. Good agreement has been found between experimental results and theoretical analysis.

키워드

참고문헌

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피인용 문헌

  1. Application of fiber element in the assessment of the cyclic loading behavior of RC columns vol.34, pp.3, 2002, https://doi.org/10.12989/sem.2010.34.3.301