충전콘크리트강관주의 최대내력에 관한 실험적 연구 ( The Column Strength of Concentrically Compressed Square and Circular Hollow Section Filled With Concrete )

In the high-rise steel buildings, It is difficult for the steel tubes of large width-thickness ratios to rely on the axial force arising in the columns. In this paper, as the basic step to solve the axial force problems we experimentally and analytically investigate the maximum column strength of concrete filled steel tubes(square and circular) subjected to concentrically axial load. And the results of numerical analysis method based on the beam-column theory are discussed to be applied to the multiple column curves of SSRC and ECCS