Performance of New Sandwich Tube under Axial Loading: Analysis
Publication: Journal of Structural Engineering
Volume 121, Issue 12
Abstract
A new composite tube consisting of two concentric steel tubes with polymer concrete sandwiched in between them was studied for its behavior under axial compressive loading. Twenty-six small-scale models of short composite tubes were tested and the findings were reported in a companion paper. Test results showed that the new composite tubes generally had a compressive strength 10–30% higher than the sum of the individual components. The ductility of the composite tube was much improved. In this paper, an analytical model is presented to predict the response of the sandwich tube under an axial load up to its peak strength. The tracing of the load-deformation curve was accomplished through an iterative procedure. An empirical formula for the peak strength of the sandwich tube is also presented. Both the analytical model and the empirical formula predict the peak strength of the sandwich tube well.
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References
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Chakrabarty, J. (1987). Theory of plasticity . McGraw-Hill Book Co., Inc., New York, N.Y.
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Reismann, H., and Pawlik, P. S. (1980). Elasticity, theory and applications . John Wiley & Sons, Inc., New York, N.Y.
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Wei, S. (1993). “Structural behavior of steel-polymer concrete-steel sandwich hollow cylinders under uniaxial compression,” PhD disserta-tion, Dept. of Civ. and Envir. Engrg., Univ. of Houston, Houston, Tex.
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Wei, S., Mau, S. T., and Vipulanandan, C. (1992). “Mechanical behavior of confined polymer concrete.”Cement and Concrete Res., Vol. 22, 621–630.
5.
Wei, S., Mau, S. T., Vipulanandan, C., and Mantrala, S. K.(1995). “Performance of a new sandwich tube under axial loading: Experiment.”J. Struct. Engrg., ASCE, 121(12), 1806–1814.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 121 • Issue 12 • December 1995
Pages: 1815 - 1821
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Dec 1, 1995
Published in print: Dec 1995
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