Reliability Analysis of Circular Concrete-Filled Steel Tube with Material and Geometrical Nonlinearity

Abstract:

Most of the previous researches on the concrete-filled steel tube are restricted to deterministic approach. To give a clearer insight about random properties of circular concrete-filled steel tube, reliability analysis is carried in the present study. Material and geometrical nonlinear analysis of a circular concrete-filled steel tube is performed with a three-dimensional degenerated beam element, which can efficiently obtain the structural nonlinear responses. Through the combination of first order reliability method and nonlinear finite element analysis, the reliability about ultimate resistance capacity of the concrete-filled steel tube is investigated. The influences of parameters such as material strength, slenderness, initial geometrical imperfection, and etc. on reliability of circular concrete-filled steel tube column are studied. Some conclusions obtained from reliability analysis may be beneficial for rational analysis and design of the concrete-filled steel tube in practical engineer structures.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 550-555
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.550
• Online since: January 2012
• Authors: Teng Fei Xu, Tian Yu Xiang, Yu Lin Zhan, Ren Da Zhao
• Keywords: Concrete-Filled Steel Tube (CFST), Geometrical Nonlinearity, Material Nonlinearity, Reliability

References

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