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http://dx.doi.org/10.4334/JKCI.2009.21.2.159

An Experimental Study on Uniaxial Compressive Behavior of RC Circular Columns Laterally Confined with Prestressing Aramid Fiber Strap  

Han, Sang-Hoon (Dept. of Civil Engineering, Chungbuk National University)
Hong, Ki-Nam (Dept. of Civil Engineering, Chungbuk National University)
Lee, Jae-Bum (Dept. of Civil Engineering, Chungbuk National University)
Publication Information
Journal of the Korea Concrete Institute / v.21, no.2, 2009 , pp. 159-168 More about this Journal
Abstract
In this study, strength, stiffness and confinement effect with stress-strain and stress-volumetric strain curves for improved uniaxial compressive behavior of RC circular columns laterally confined with prestressing aramid fiber strap were experimentally investigated. The test variables were the specimens with or without axial reinforcing bar and the number and spacing of strap, prestressing level, the types of reinforcing fiber (CFS, GFS). As a result, the failure type of the columns was very stable and strength increase rate was about 73% comparison with the general RC columns. Moreover, the strain increase rate is very small and the axial displacement confinement effect was very effective compared with existry methods (CFS, GFS), the initial and final lateral confinement effect was excellent.
Keywords
RC circular column; prestressing aramid fiber strap; lateral confined effect; CFS; GFS;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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