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[ Article ]
Journal of Korean Society of Steel Construction - Vol. 24, No. 05, pp. 521-534
ISSN: 1226-363X (Print) 2287-4054 (Online)
Print publication date Oct 2012
Received 30 Jul 2012 Revised 19 Sep 2012 Accepted 25 Sep 2012
DOI: https://doi.org/10.7781/kjoss.2012.24.5.521
신형상 U형 하이브리드 합성보의 휨성능에 대한 연구
김성배1) ; 김상섭2), * ; 이원록1) ; 김정연1) ; 이승배3) ; 유덕수4) ; 김대회5)
1)소장, ㈜더나은구조엔지니어링
2)교수, 한국기술교육대학교, 건축공학부
3)과장, ㈜더나은구조엔지니어링
4)대리, ㈜더나은구조엔지니어링
5)석사과정, 한국기술교육대학교, 건축공학과
Study on the Flexible Strength of U-shape Hybrid Composite Beam
Kim, Sung Bae1) ; Kim, Sang Seup2), * ; Lee, Won Rok1) ; Kim, Jung Yeon1) ; Lee, Seung Bae3) ; Ryu, Deog Su4) ; Kim, Dae Hoi5)
1)Division Manager, The Naeun Structural Engineering, Seoul, 150-105, Korea
2)Professor, School of Architecture Engineering, The Korea University of Technology & Education, 330-708, Cheonan, Korea
3)Deputy Manager, The Naeun Structural Engineering, Seoul, 150-105, Korea
4)Assistant Manager, The Naeun Structural Engineering, Seoul, 150-105, Korea
5)Graduate Student, Dept. of Architecture, The Korea University of Technology & Education, 330-708, Cheonan, Korea
Correspondence to : * Tel: +82-41-560-1330, Fax: +82-41-560-1244, E-mail: kimss@kut.ac.kr

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.

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.