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Behavior of channel shear connectors, Part I: Experimental study

Maleki, S ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jcsr.2008.01.010
  3. Publisher: 2008
  4. Abstract:
  5. In composite beams, shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. This paper presents an experimental study on the behavior of channel shear connectors embedded in a solid concrete material slab under monotonic and low-cycle fatigue loading. The latter would be applicable to composite structures subjected to seismic events. Of specific interest are the behavior and effects of different concrete materials. A series of push-out specimens made of plain concrete, reinforced concrete (RC), fiber reinforced concrete (FRC) and engineered cementitious composite (ECC) were tested for this evaluation. The results show that the reversed cyclic shear strength of most specimens is 10%-23% lower than their monotonic strength. Also, using the polypropylene fibers (FRC specimens) has a slight effect on the shear strength and load-displacement behavior of the specimens; however, using the polyvinyl alcohol fibers (ECC specimens) causes considerable increase in ultimate strength and ductility of channel shear connectors. Finally, the experimental load capacities are compared with that suggested by North American design codes. © 2008 Elsevier Ltd. All rights reserved
  6. Keywords:
  7. Building materials ; Composite beams and girders ; Composite structures ; Concrete beams and girders ; Concrete buildings ; Concrete construction ; Connectors (structural) ; Engineering geology ; Fiber optics ; Fibers ; Reinforced concrete ; Shear strength ; Strength of materials ; Structure (composition) ; Cementitious composites ; Channels ; Composite beams ; Composites ; Concrete materials ; Cyclic loading ; Cyclic shear ; Design codes ; Experimental studies ; Fiber-reinforced concrete ; Load capacities ; Load-displacement behavior ; Longitudinal shear ; Low-cycle fatigue loading ; Plain concrete ; Polypropylene fibers ; Push-out ; Push-out test ; Seismic events ; Shear connectors ; Steel-concrete ; Ultimate strength ; Concretes
  8. Source: Journal of Constructional Steel Research ; Volume 64, Issue 12 , December , 2008 , Pages 1333-1340 ; 0143974X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0143974X08000163