Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Study on the Flexible Strength of U-shape Hybrid Composite Beam

신형상 U형 하이브리드 합성보의 휨성능에 대한 연구

  • 김성배 ((주)더나은구조엔지니어링) ;
  • 김상섭 (한국기술교육대학교, 건축공학부) ;
  • 이원록 ((주)더나은구조엔지니어링) ;
  • 김정연 ((주)더나은구조엔지니어링) ;
  • 이승배 ((주)더나은구조엔지니어링) ;
  • 유덕수 ((주)더나은구조엔지니어링) ;
  • 김대회 (한국기술교육대학교, 건축공학과)
  • Received : 2012.07.30
  • Accepted : 2012.09.25
  • Published : 2012.10.27
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Abstract

In this research, we carry this study into effect on the basis of utilizing character of composite beam and developing applicable section to some of high strength steel. We evaluated flexural capacity of composite beam that is a unit member through experiments. The existing nominal strength formula of Composite Beam which is a previous method was reviewed and the experiment had been progressive by using each composite members as main variables though the result. Capacity evaluation of U-shape Hybrid Forming Beam(HyFo Beam) which is a new shape show as follow from the result. First, it is resonable to resist demand moment by couple moments which are occurred in concrete compressive-strength and steel tensile-strength. Second, the capacity was stably increased in proportion to the depth of beams and the thickness of steel plates. The last, HyFo Beam was showed as ductile behavior.

본 연구에서는 합성보의 특징을 활용하고, 일부 고강도강 적용이 가능한 단면을 개발하여 이에 대한 기초연구를 실시하였다. 본 논문은 그 첫 번째로 단위부재인 합성보의 휨성능을 실험을 통해 평가하였다. 실험결과를 통해 기존 합성보의 공칭강도 산정식 적용여부를 검토하였고, 각 구성부재를 주요변수로 하여 실험하였다. 실험결과 신형상 U형 합성보의 내력평가는 콘크리트 압축강도와 강재의 인장강도에 의한 우력모멘트로 소요모멘트에 저항하는 것으로 평가하는 것이 적합하며, 보 춤 및 강판 두께에 비례하여 내력이 안정적으로 증가하였으며, 연성거동을 하는 것으로 나타났다.

Keywords

References

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