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http://dx.doi.org/10.12652/Ksce.2011.31.4A.331

Axial Load Behavior of Concrete Cylinders Confined with Fiber-Sheet and Steel-Plate Composites Plate (FSP)  

Cho, Baik-Soon (인제대학교 건설기술연구소 토목공학과)
Choi, Eunsoo (홍익대학교 토목공학과)
Chung, Young-Soo (중앙대학교 사회기반시스템공학부)
Kim, Yeon-Wook (계명대학교 신소재공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.4A, 2011 , pp. 331-340 More about this Journal
Abstract
The application of newly developed fiber-sheet and steel-plate composite plate (FSP) as a means of improving strength and ductility capacity of concrete cylinders under axial compression load through confinement is investigated experimentally in this study. An experimental investigation involves axial load tests of two types of FSP strengthening material, two anchoring methods, and three concrete strengths. The FSP-confined cylinder tests showed that FSP provided a substantial gain in compressive strength and deformability. The performance of FRP-confined cylinders was influenced by type of the FSP strengthening material, the anchoring method, and concrete compressive strength. The FSP failure strains obtained from FSP-confined cylinder tests were higher than those from FRP-confined cylinder tests. The magnitude of FSP failure strain was related to the FSP composite effectiveness. The effects of FSP confinement on the concrete microstructure were examined by evaluating the internal concrete damage using axial, radial, and volumetric strains. From the observations obtained in this investigation, it is believed that FSP is one of the best solutions for the confinement of concrete compressive members.
Keywords
FSP-confined cylinders; anchoring method; effective FSP failure strain; FSP composite effectiveness; zero volumetric strain; axial strain at zero volumetric strain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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