Experimental Behavior of Concrete-Filled Stainless Steel Tubular Columns under Cyclic Lateral Loading
Publication: Journal of Structural Engineering
Volume 143, Issue 4
Abstract
Concrete-filled stainless steel tubular (CFSST) columns have attracted increasing research interests in recent years; however, It seems that the behavior of this type of innovative column under cyclic loading has not been addressed sufficiently so far. This paper reports test results of 10 CFSST columns under constant axial load and cyclically increasing flexural loading. The main parameters varied in the experiments were axial load level, cross-sectional type, and concrete type. The influences of these parameters on strength, ductility, stiffness, and energy dissipation were investigated. It was found that CFSST columns exhibited excellent energy dissipation and ductility, even when the specimens were subjected to high axial loads. The hysteretic behavior of the tested CFSST columns was compared to that of their carbon steel composite counterparts reported in the literature. Several existing design codes were used to predict the ultimate strength and flexural stiffness of the test specimens, and some suggestions are proposed accordingly for designing CFSST columns.
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Acknowledgments
The study presented in this paper is financially supported by the National Natural Science Foundation of China (51108084 and 51578154). The research reported in the paper is also part of the Tsinghua University Initiative Scientific Research Program (No. 2013Z02). Their financial support is highly appreciated.
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Published In
Journal of Structural Engineering
Volume 143 • Issue 4 • April 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Feb 3, 2016
Accepted: Sep 22, 2016
Published online: Nov 21, 2016
Published in print: Apr 1, 2017
Discussion open until: Apr 21, 2017
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