Paper Title:

A Method for Deformation Analysis of Bar-Reinforced Concrete Filled Steel Tubular Columns under Axial Compression

Periodical Advanced Materials Research (Volumes 163 - 167)
Main Theme Advances in Structures
Edited by Lijuan Li
Pages 576-581
DOI 10.4028/www.scientific.net/AMR.163-167.576
Citation Jin Sheng Han et al., 2010, Advanced Materials Research, 163-167, 576
Online since December, 2010
Authors Jin Sheng Han, Shu Ping Cong
Keywords Bar-Reinforced Concrete Filled Steel Tubular Column, Constitutive Model, Interaction, Load-Deformation Process, Numerical Simulation
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Abstract

Based on experimental researches, a simple numerical analysis method was presented to simulate the full load-deformation process of bar-reinforced concrete filled steel tubular short columns subjected to axial compression. Firstly, the interaction process of steel tube and concrete was analyzed, and then, the simplified constitutive models of steel tube and concrete were established on the base of previous analysis results. Secondly, the relation between lateral and longitudinal strain of steel tube was analyzed based on experimental results, and a simple method was presented to calculate the lateral strain of steel tube. Finally, a program was worked out to simulate the full load-deformation process of bar-reinforced concrete filled steel tubular short columns. The program’s simulation results of both ultimate bearing capacity and load-deformation curves are in good agreement with the experimental results.