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Steel and Composite Structures Volume 43, Number 3, May10 2022 (Special Issue) pages 311-325 DOI: https://doi.org/10.12989/scs.2022.43.3.311 |
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Interfacial shear resistance of angle shear connectors welded to concrete filled U-shaped CFS beam |
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Hyoung Seok Oh, Hyeongyeop Shin, Youngkyu Ju and Thomas H.-K. Kang
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| 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. | ||
| Key Words | ||
| aggregate interlocking resistance; angle; channel; cold formed-steel; composite beam; concrete; interfacial shear strength; push-out test; shear connector; U-shaped section | ||
| Address | ||
| 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 | ||