مقاله Static behavior of multi-stud shear connectors for steel-concrete composite bridge : تی پی بین

خلاصه مقاله

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.

نویسندگان

Dongyan Xue [ Department of Bridge Engineering, Tongji University, Shanghai, 200092, China ]

Yuqing Liu [ Department of Bridge Engineering, Tongji University, Shanghai, 200092, China ]

Zhen Yu [ Department of Bridge Engineering, Tongji University, Shanghai, 200092, China ]

Jun He [ Department of Bridge Engineering, Tongji University, Shanghai, 200092, China ]

کلمات کلیدی

Headed stud shear connector Push out test Multi stud connector Load slip curve Ultimate shear strength

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Journal of Constructional Steel Research

The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.

حوزه های تحت پوشش : Constructional Steel