Experimental Investigation on Square High-Strength Concrete Short Columns Confined with AFRP Sheets
Publication: Journal of Composites for Construction
Volume 14, Issue 3
Abstract
An experimental investigation on square high-strength concrete short columns confined with aramid fiber-reinforced polymer (AFRP) sheets is carried out in this study. Nine plain concrete specimens and 54 wrapped concrete specimens were tested under monotonic axial compressive loading. The specimens were grouped by three different grades of concrete strength. In each grade, some specimens were partially wrapped and others were fully wrapped, and the amount of wrapping AFRP sheets was varied also. Based on the experimental results, the regression formulas for strength and strain are obtained. The experimental results demonstrate that two types of axial stress-strain curves were observed depending on the form of AFRP wrapping, and the strength and ductility of the columns were increased when fully wrapped AFRP sheets, while only the strength was increased when partially wrapped AFRP sheets.
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Acknowledgments
The writers acknowledge the financial support provided by the National Natural Science Foundation of China under Grant No. NNSFC50378002, and by the Science and Technology Program for Western Transportation Construction of the Ministry of Communications of China under Grant No. UNSPECIFIED200431800058. The writers are grateful to Beijing Jiaotong University and China Railway Co. Laboratory for the use of their testing facilities; and to Shenzhen Ocean Power Engineering Technology Co., Ltd., who contributed the AFRP materials.
References
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 14 • Issue 3 • June 2010
Pages: 346 - 351
Copyright
© 2010 ASCE.
History
Received: Jan 20, 2009
Accepted: Nov 2, 2009
Published online: Nov 6, 2009
Published in print: Jun 2010
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