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Static behavior of multi-stud shear connectors for steel-concrete composite bridge
Abstract Push-out tests were conducted to investigate the different behavior between single-stud and multi-stud connectors. The results show that the single-stud and multi-stud connectors have the similar stiffness, and the spacing of studs has little influence in the stiffness of multi-stud connectors. The ultimate strength of single-stud connector is about 10% larger than multi-stud connectors. When the load reaches its peak, the relative slip of single-stud connector is about 19% larger than that of multi-stud connectors. The multi-stud effect on static behavior of shear connector is negligible. Based on the push-out test results, a new expression of stud load-slip relationship was proposed. Compared to existing relationships, the new expression has a better match with the experimental values. The static behavior was studied and compared to design equations. The results show that the estimation based on Eurocode-4 agrees well with the multi-stud test results and the estimations based on AASHTO LRFD and Chinese code agree well with the single-stud test results.
Highlights ► Push-out tests about single-stud and multi-stud shear connectors. ► Put forward a new expression of stud load-slip relationship. ► Comparison of test results and calculated values by the design codes.
Static behavior of multi-stud shear connectors for steel-concrete composite bridge
Abstract Push-out tests were conducted to investigate the different behavior between single-stud and multi-stud connectors. The results show that the single-stud and multi-stud connectors have the similar stiffness, and the spacing of studs has little influence in the stiffness of multi-stud connectors. The ultimate strength of single-stud connector is about 10% larger than multi-stud connectors. When the load reaches its peak, the relative slip of single-stud connector is about 19% larger than that of multi-stud connectors. The multi-stud effect on static behavior of shear connector is negligible. Based on the push-out test results, a new expression of stud load-slip relationship was proposed. Compared to existing relationships, the new expression has a better match with the experimental values. The static behavior was studied and compared to design equations. The results show that the estimation based on Eurocode-4 agrees well with the multi-stud test results and the estimations based on AASHTO LRFD and Chinese code agree well with the single-stud test results.
Highlights ► Push-out tests about single-stud and multi-stud shear connectors. ► Put forward a new expression of stud load-slip relationship. ► Comparison of test results and calculated values by the design codes.
Static behavior of multi-stud shear connectors for steel-concrete composite bridge
Xue, Dongyan (author) / Liu, Yuqing (author) / Yu, Zhen (author) / He, Jun (author)
Journal of Constructional Steel Research ; 74 ; 1-7
2011-09-22
7 pages
Article (Journal)
Electronic Resource
English
Static behavior of multi-stud shear connectors for steel-concrete composite bridge
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