문헌정보 홈 > 발행기관 > 한국콘크리트학회 > International Journal of Concrete Structures and Materials Vol.10 No.4 > International Journal of Concrete Structures and Materials : Vol.10 No.4
  • Progressive Collapse of Exterior Reinforced Concrete Beam-Column Sub-assemblages: Considering the Effects of a Transverse Frame
  • 분류연구문헌 - 학회논문 - 논문
  • ISSN1976-0485
  • 저자Omid Rashidian, Reza Abbasnia, Rasool Ahmadi, Foad Mohajeri Nav
  • 페이지pp.479~497
  • 수록지International Journal of Concrete Structures and Materials : Vol.10 No.4
  • 발행년도2016년 - 12월
  • 소장위치토목연구정보센터
  • 통제번호1950307
  • 키워드progressive, collapse, reinforced, concrete, beams, experiment, alternative, load, path, finite, element, analysis
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오류신고
초록
Many experimental studies have evaluated the in-plane behavior of reinforced concrete frames in order to understand mechanisms that resist progressive collapse. The effects of transverse beams, frames and slabs often are neglected due to their probable complexities. In the present study, an experimental and numerical assessment is performed to investigate the effects of transverse beams on the collapse behavior of reinforced concrete frames. Tests were undertaken on a 3/10-scale reinforced concrete sub-assemblage, consisting of a double-span beam and two end columns within the frame plane connected to a transverse frame at the middle joint. The specimen was placed under a monotonic vertical load to simulate the progressive collapse of the frame. Alternative load paths, mechanism of formation and development of cracks and major resistance mechanisms were compared with a two-dimensional scaled specimen without a transverse beam. The results demonstrate a general enhancement in resistance mechanisms with a considerable emphasis on the flexural capacity of the transverse beam. Additionally, the role of the transverse beam in restraining the rotation of the middle joint was evident, which in turn leads to more ductile behavior. A macro-model was also developed to further investigate progressive collapse in three dimensions. Along with the validated numerical model, a parametric study was undertaken to investigate the effects of the removed column location and beam section details on the progressive collapse behavior

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