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

A. A. Golafshani; S. B.B. Aval; Mohamad Saadeghvaziri

doi:10.12989/sem.2002.14.2.119

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

A. A. Golafshani, S. B.B. Aval, Mohamad Saadeghvaziri

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	119-133
Number of pages	15
Journal	Structural Engineering and Mechanics
Volume	14
Issue number	2
DOIs	https://doi.org/10.12989/sem.2002.14.2.119
State	Published - Jan 1 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Building and Construction
Mechanics of Materials
Mechanical Engineering

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10.12989/sem.2002.14.2.119

Cite this

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abstract = "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.",

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AU - Saadeghvaziri, Mohamad

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

Abstract

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