| Reference : Equations to predict the shear connection capacity of composite beams with slender pr... |
| Scientific congresses, symposiums and conference proceedings : Unpublished conference | |||
| Engineering, computing & technology : Civil engineering | |||
| http://hdl.handle.net/10993/40549 | |||
| Equations to predict the shear connection capacity of composite beams with slender profiled steel sheeting | |
| English | |
Odenbreit, Christoph  [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >] | |
| Vigneri, Valentino [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >] | |
| Lam, Dennis [University of Bradford > Department of Civil and Structural Engineering] | |
| Jul-2019 | |
| Yes | |
| International | |
| 9th International Conference on Steel and Aluminium Structures ICSAS19 | |
| 03-07-2019 to 05-07-2019 | |
| Bradford | |
| UK | |
| [en] Shear stud ; Shear connector with profiled sheeting ; Mechanical model ; Statistical evaluation | |
| [en] The rules of EN1994-1-1 for shear connections in composite beams with deep profiled
sheeting sometimes lead to an overestimation of the load bearing capacity of the respective shear connection. The estimation of the impact of the sheeting shape on the calculated connection resistance is based on test results from the late seventies until the early nineties. Meanwhile, new products have appeared on the market with the target to reduce the volume and weight of the concrete in order to maximize the slab efficiency. However, the corresponding effects onto the shear connection have been underestimated because the use of deeper and more narrow deck rib lead to a more slender profile with a changed failure behaviour. Instead of the shearing-off failure of the stud, a combination of concrete cone failure and plastic bending of the stud – with one or two plastic hinges - was identified in laboratory tests. Based on the observed failure mechanisms, a new mechanical model with respective analytical equations for the shear resistance of headed studs in profiled steel sheeting was proposed. The new model extends the yield hinge mechanism, which was developed by Lungershausen [1], to more precisely predict the formation of the number of yield hinges depending on the mechanical and geometrical properties with the support of a finite element model. The complete equations consider the geometry of the stud and the steel decking as well as the material strengths of the stud and concrete. The statistical evaluation shows a good accordance with the developed model and analytical design equations. This contribution presents the new design equations and their background describing the mechanical model, the numerical study and statistical evaluation of push-out test results. | |
| http://hdl.handle.net/10993/40549 |
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