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http://dx.doi.org/10.12989/scs.2022.44.5.741

Effect of silicone rubber-sleeve mounted on shear studs on shear stiffness of steel-concrete composite structures  

Yang, Chang (Department of Road and Bridge Engineering, Wuhan University of Technology)
Yang, Decan (Department of Road and Bridge Engineering, Wuhan University of Technology)
Huang, Caiping (Department of Road and Bridge Engineering, Hubei University of Technology)
Huang, Zhixiang (Department of Road and Bridge Engineering, Hubei University of Technology)
Ouyang, Lizhi (Department of Physics and Mathematics, Tennessee State University)
Onyebueke, Landon (Department of Mechanical Manufacturing Engineering, Tennessee State University)
Li, Lin (Department of Civil and Architectural Engineering, Tennessee State University)
Publication Information
Steel and Composite Structures / v.44, no.5, 2022 , pp. 741-752 More about this Journal
Abstract
Earlier works have shown that excessive shear stiffness at the steel-concrete interface causes a non-uniform distribution of shear force in composite structures. When the shear studs are wrapped at the fixed end with flexible materials with a low elastic modulus, the shear stiffness at the interface is reduced. The objective of this study was to investigate the effect of silicone rubber-sleeve mounted on shear studs on the shear stiffness of steel-concrete composite structures. Eighteen push-out tests were conducted to investigate the mechanical behavior of silicone rubber-sleeved shear stud groups (SRS-SSG). The dimension and arrangement of silicon rubber-sleeves (SRS) were taken into consideration. Test results showed that the shear strength of SRS-SSG was higher than that of a shear stud group (SSG), without SRS. For SRS-SSG with SRS heights of 50 mm, 100 mm, 150 mm, the shear strengths were improved by 13%, 20% and 9%, respectively, compared to the SSG alone. The shear strengths of SRS-SSG with the SRS thickness of 2 mm and 4 mm were almost the same. The shear stiffness of the SRS-SSG specimens with SRS heights of 50 mm, 100 mm and 150 mm were 77%, 67% and 66% of the SSG specimens, respectively. Test results of specimens SSG-1 and predicted values based on the three design specifications were compared. The nominal single stud shear strength of SSG-1 specimens was closest to that calculated by the Chinese Code for Design of Steel Structures (GB50017-2017). An equation is proposed to consider the effects of SRS for GB50017-2017, and the predicted values based on the proposed equation agree well with the tested results of SRS-SSG.
Keywords
push-out tests; shear stiffness; shear strength; shear studs; silicone rubber-sleeved shear stud groups;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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