Posted in Data Archive, Press (논문, 학회지, 수상 소식 등), 논문 / Papers
PSRC 합성기둥의 중심축 압축 실험 / Concentric Compression Test on PSRC Composite Columns [한국강구조학회 / Korean Society of Steel Construction] (2012.06)
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– 저자 : 황현종, 엄태성, 박홍근, 이창남, 김형섭
In this study, a prefabricated composite column detail using high-strength angle (PSRC composite column) was developed. Concentric axial loading tests were performed for 2/3 scale-down PSRC and existing SRC column specimens to
evaluate the axial load resistance under compression. The steel ratio of angles and the spacing of lateral reinforcing bars were used as the test parameter. The test results showed that since the angles placed along the perimeter of column
section provided additional confinement for the concrete of column core, the PSRC column specimens exhibited better axial load resistance (e.g. load-carrying capacity, deformation capacity, and crack resistance) than that of the existing SRC column specimen using H-section at the center of column section. The axial load-carrying capacity of the PSRC column specimens was greater than the nominal strength specified in KBC 2009. By using the stress-strain relationship of confined concrete suggested for reinforced concrete compression members, the axial load-deformation behaviors of the PSRC and SRC column specimens were analyzed. The results of the analysis correlated well with the test results in terms of initial stiffness, load-carrying capacity, and post-peak strength- and stiffness- degradations.
