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Steel and Composite Structures Volume 44, Number 5, September 2022 , pages 677-684 DOI: https://doi.org/10.12989/scs.2022.44.5.677 |
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Shear behavior of steel reinforced concrete shallow floor beam: Experimental and theoretical study |
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Yang Chen, Chong Ren, Yuqing Yuan and Yong Yang
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| Abstract | ||
| This paper reports experimental investigation on shear behavior of steel reinforced concrete (SRC) shallow floor beam, where the steel shape is embedded in concrete and the high strength bolts are used to transfer the shear force along the interface between the steel shape and concrete. Six specimens were conducted aiming to provide information on shear performance and explore the shear bearing capacity of SRC shallow floor beams. The effects of the height of concrete slab, the size and the type of the steel section on shear performance of beams were also analyzed in the test. Based on the strut-and-tie model, the shear strength of the SRC shallow floor beam was proposed. Experimental results showed that composite shallow floor beam exhibited satisfactory composite behavior and all of the specimen failed in shear failure. The shear bearing capacity increased with the increasing of height of concrete slab and the size of steel shape, and the bearing capacities of beam specimens with castellated steel shape was slightly lower than those of specimens with H-shaped steel section. Furthermore, the calculations for evaluating the shear bearing capacity of SRC shallow floor beam were verified to be reasonable. | ||
| Key Words | ||
| experimental study; shear capacity; shear performance; SRC shallow floor beam; strut-and-tie model | ||
| Address | ||
| Yang Chen:1)Department of Civil Engineering, Shanghai University, Shanghai, 200444, China 2)School of Civil Engineering, Xi | ||