[an error occurred while processing this directive] Global Geology 2009, 12(4) 226-229 DOI:     ISSN: 1673-9736 CN: 22-1371/P
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Experimental study on slender reinforced concrete columns wrapped with CFRP
HU Zhongjun1 , NIE Lei1 , PAN Jinglong2 and XU Tian2
1. College of Construction Engineering, Jilin University, Changchun 130026, China; 2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract:

By axial compression tests on 6 reinforced concrete slender columns wrapped with carbon fiber-reinforced plastic (CFRP) , with slenderness ratio ( SR) from 4.5 to 17.5, the results show that when SR increases the retrofitting effect declines. In the case of same SR, the stability coefficient ( SC) for the reinforced concrete (RC) columns with CFRP is much less than that without CFRP. There is 20% increase of stable bearing capacity to the former as compared with the latter when the SR in less than 17.5. The study summarized the simplified formula for SC, which provides a reference for engineering designers.

Keywords: carbon fiber reinforced plastics   reinforced concrete column   stability coefficient   slenderness ratio  
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