Steel and Composite Structures

  • 제43권3호
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  • Pages.311-325
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  • 2022
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Interfacial shear resistance of angle shear connectors welded to concrete filled U-shaped CFS beam

  • Oh, Hyoung Seok (Department of Architecture and Architectural Engineering, Seoul National University) ;
  • Shin, Hyeongyeop (Department of Architecture and Architectural Engineering, Seoul National University) ;
  • Ju, Youngkyu (Department of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kang, Thomas H.K. (Department of Architecture and Architectural Engineering, Seoul National University)
  • 투고 : 2022.01.10
  • 심사 : 2022.04.14
  • 발행 : 2022.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

For multi-story structural systems, Korean steel industry has fostered development of a steel-concrete composite beam. Configuration of the composite beam is characterized by steel angle shear connectors welded to a U-shaped cold formed-steel beam. Effects of shear connector orientation and spacing were studied to evaluate current application of the angle shear connector design equation in AC495. For the study, interfacial shear resistance behavior was investigated by conducting 24 push-out tests and attuned using unreinforced push-out specimens. Interfacial shear to horizontal slip response was reported along with corresponding failure patterns. Pure shear connector strength was also evaluated by excluding concrete shear contribution, which was estimated in relation to steel beam-slab interface separation or interfacial crack width.

키워드

과제정보

The research described in this paper was financially supported by the POSCO and the National Research Foundation of Korea (NRF) (No. 2021R1A5A1032433). The testing was done at the POSCO laboratory, and the assistance of Dr. Jin-Won Kim of POSCO and Mr. Hee-Hoon Kim of DRB is greatly appreciated. During the process of the research, the second and fourth authors primarily contributed to the publications of AC495 and ICC-ES (ESR-4134, U-shaped steel-contribute composite beam (BESTOBEAM system)). The views expressed are those of the authors, and do not necessarily represent those of the sponsor.

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