Steel and Composite Structures

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Distribution of shear force in perforated shear connectors

  • Wei, Xing (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Shariati, M. (Faculty of Civil Engineering, University of Tabriz) ;
  • Zandi, Y. (Department of Civil Engineering, Islamic Azad University) ;
  • Pei, Shiling (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Jin, Zhibin (Department of Civil and Environmental Engineering, Colorado School of Mines) ;
  • Gharachurlu, S. (Department of Civil Engineering, Islamic Azad University) ;
  • Abdullahi, M.M. (Department of Civil Engineering, Jubail University College, Royal Commission of Jubail and Yanbu) ;
  • Tahir, M.M. (UTM Construction Research Centre, Faculty of Civil Engineering, Institute for Smart Infrastructure and Innovative Construction, UTM) ;
  • Khorami, M. (Facultad de Arquitectura y Urbanismo, Universidad Tecnologica Equinoccial)
  • Received : 2018.01.17
  • Accepted : 2018.02.22
  • Published : 2018.05.10
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Abstract

A perforated shear connector group is commonly used to transfer shear in steel-concrete composite structures when the traditional shear stud connection is not strong enough. The multi-hole perforated shear connector demonstrates a more complicated behavior than the single connector. The internal force distribution in a specific multi-hole perforated shear connector group has not been thoroughly studied. This study focuses on the load-carrying capacity and shear force distribution of multi-hole perforated shear connectors in steel-concrete composite structures. ANSYS is used to develop a three-dimensional finite element model to simulate the behavior of multi-hole perforated connectors. Material and geometric nonlinearities are considered in the model to identify the failure modes, ultimate strength, and load-slip behavior of the connection. A three-layer model is introduced and a closed-form solution for the shear force distribution is developed to facilitate design calculations. The shear force distribution curve of the multi-hole shear connector is catenary, and the efficiency coefficient must be considered in different limit states.

Keywords

Acknowledgement

Supported by : National Science Founding of China (NSFC)

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