띠철근 강도가 고강도 철근콘크리트 기둥의 휨거동에 미치는 영향에 관한 실험적 연구

  • 문호권 (정회원, 중앙대학교 대학원 석사졸, 한울구조 사무소) ;
  • 양근혁 (정회원, 중앙대학교 대학원 ) ;
  • 이영호 (정회원, 중앙대학교 건축과, 동원대학 건축과) ;
  • 정헌수 (정회원, 중앙대학교 건축학과)
  • 발행 : 2000.04.01

초록

This paper presents an experimental study on the behavior of high strength concrete columns confined by rectangular ties under combined axial load lateral load. This test was carried on the twelve reinforced concrete columns with $200\times200\times200$mm size subjected to combined axial load and lateral load. Effects of key variables such as the axial load level, the tie yield strength, the longitudinal reinforcement ratio are studied in this research program. The results of this study show that the efficiency of high strength lateral ties increase under high axial load level over 0.4f(아래첨자) A(아래 첨자). Also we found that well confined concrete column shows second peak monent after spalling of cover concrete under high axial load level.

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