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Experimental and Mechanical Behavior of Rubber-Sleeved Group Studs
The group studs used in precast steel-concrete composite bridges can reduce the volume of cast-in-place concrete, consequently accelerating the construction process and improving the construction quality. However, the small spacing of the studs in the group studs may result in a decrease in shear strength and ductility, and a nonuniform distribution of shear force at the root of the studs. Hence, rubber-sleeved group studs, whose studs are wrapped by a rubber sleeve at the root, are proposed to redistribute the shear force at the steel-concrete interface and improve the ductility of the shear connector. In this study, four push-out tests were conducted to demonstrate the composite mechanism of rubber-sleeved group studs. Results show that the rubber-sleeved group studs exhibit better ductility than ordinary group studs. Finite element models verified using the test results were also established for parametric analysis. The mechanism analysis shows that the concrete compression regions around stud roots are sufficiently utilized. Based on the parametric analysis, designing suggestions for rubber-sleeved group studs were provided.
Experimental and Mechanical Behavior of Rubber-Sleeved Group Studs
The group studs used in precast steel-concrete composite bridges can reduce the volume of cast-in-place concrete, consequently accelerating the construction process and improving the construction quality. However, the small spacing of the studs in the group studs may result in a decrease in shear strength and ductility, and a nonuniform distribution of shear force at the root of the studs. Hence, rubber-sleeved group studs, whose studs are wrapped by a rubber sleeve at the root, are proposed to redistribute the shear force at the steel-concrete interface and improve the ductility of the shear connector. In this study, four push-out tests were conducted to demonstrate the composite mechanism of rubber-sleeved group studs. Results show that the rubber-sleeved group studs exhibit better ductility than ordinary group studs. Finite element models verified using the test results were also established for parametric analysis. The mechanism analysis shows that the concrete compression regions around stud roots are sufficiently utilized. Based on the parametric analysis, designing suggestions for rubber-sleeved group studs were provided.
Experimental and Mechanical Behavior of Rubber-Sleeved Group Studs
KSCE J Civ Eng
Chen, Yuxuan (author) / Yan, Quansheng (author) / Jia, Buyu (author) / Yu, Xiaolin (author) / Wu, Yu (author) / Luo, Yufan (author)
KSCE Journal of Civil Engineering ; 26 ; 3905-3917
2022-09-01
13 pages
Article (Journal)
Electronic Resource
English
Study on mechanical behavior of rubber-sleeved studs for steel and concrete composite structures
| Online Contents | 2014
Study on mechanical behavior of rubber-sleeved studs for steel and concrete composite structures
| British Library Online Contents | 2014
Study on mechanical behavior of rubber-sleeved studs for steel and concrete composite structures
| British Library Online Contents | 2014