철근콘크리트 극단주의 전단강도 평가에 관한 연구

The purpose of this study is to analyze structural behavior of RC short-column and evaluate shear strength formular of each country, so five column specimens with variables of axial load ratio and shear reinforcement ratio are made and tested. From test results, in every specimen, bending cracks occurred initially in the middle part of specimens and they moved to upper and lower part of specimens. And shear cracks were originated from upper corner in diagonal direction, and they progressed fast and the specimens were failed. As the axial load ratio and shear reinforcement ratio increases, the shear strength increases. Applying test results to ACI Code, Euro Code and JBDPA Code, the ratios of experimental value to theoretical value are appeared in the range of 1.82~2.73, 1.76~2.56, 1.20~1.63 respectively. From this result, it is proved that ACI Code and Euro Code overestimates the shear strength of short column, compared with JBOPA Code.