| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 285232 | Journal of Constructional Steel Research | 2012 | 7 Pages |
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.
► 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.
