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정연주(Chung Yeon-Joo),김종근(Kim Jong-Geon),한범석(Han Beoum-Suk),신성우(Shin Sung-Woo) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
This study investigates the behaviors of high strength concrete tied square columns subjected to concentric axial loads. 10 column specimens were fabricated for experimental test. Five configurations of transverse reinforcement such as A, B, C, E and F-type were considered. Three parameters considered in this study are follows ; 1) Volumetric ratios of transverse reinforcement; ps, 2) Spacing of transverse reinforcement; s, 3) Type of transverse reinforcement. Following conclusions are obtained from experimental study. Ultra-high-strength concrete columns under concentric axial loads show extremely brittle behavior unless the columns are confined with transverse reinforcement that can provide sufficiently high lateral confinement pressure. Therefore, the more confinement is required in the column with the higher strength of concrete than column with the lower strength of concrete to achieve same amount of strength enhancement in both columns, respectively.
정연주 ( Chung Yeon-joo ),김종근 ( Kim Jong-geon ),한범석 ( Han Beoum-suk ),신성우 ( Shin Sung-woo ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.2
This study investigates the behaviors of high strength concrete tied square columns subjected to concentric axial loads. 10 column specimens were fabricated for experimental test. Five configurations of transverse reinforcement such as A, B, C, E and F-type were considered. Three parameters considered in this study are follows; 1) Volumetric ratios of transverse reinforcement; ps, 2) Spacing of transverse reinforcement; s, 3) Type of transverse reinforcement. Following conclusions are obtained from experimental study. Ultra-high-strength concrete columns under concentric axial loads show extremely brittle behavior unless the columns are confined with transverse reinforcement that can provide sufficiently high lateral confinement pressure. Therefore, the more confinement is required in the column with the higher strength of concrete than column with the lower strength of concrete to achieve same amount of strength enhancement in both columns, respectively.