Interfacial shear resistance of angle shear connectors welded to concrete
filled U-shaped CFS beam
Hyoung Seok Oh,Hyeongyeop Shin,Youngkyu Ju,Thomas H.-K. Kang
Abstract
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 formedsteel 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.
Hyoung Seok Oh:Department of Architecture and Architectural Engineering, Seoul National University,
1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
Hyeongyeop Shin:Department of Architecture and Architectural Engineering, Seoul National University,
1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
Youngkyu Ju:Department of Civil, Environmental and Architectural Engineering, Korea University,
145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
Thomas H.-K. Kang:Department of Architecture and Architectural Engineering, Seoul National University,
1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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