Distribution of shear force in perforated shear connectors

Xing Wei, M. Shariati, Y. Zandi, Shiling Pei, Zhibin Jin, S. Gharachurlu, M.M. Abdullahi, M.M. Tahir and M. Khorami

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.

Key Words

steel-concrete structure; perforated shear connector; numerical simulation; mechanical model; efficiency coefficient

Address

(1) Xing Wei, Shiling Pei: Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; (2) M. Shariati: Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran; (3) Y. Zandi, S. Gharachurlu: Department of Civil Engineering, Islamic Azad University, Tabriz Branch, Tabriz, Iran; (4) Zhibin Jin: Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, USA; (5) M.M. Abdullahi: Department of Civil Engineering, Jubail University College, Royal Commission of Jubail and Yanbu, Jubail, Saudi Arabia; (6) M. Shariati, M.M. Tahir: UTM Construction Research Centre, Faculty of Civil Engineering, Institute for Smart Infrastructure and Innovative Construction, UTM, Johor Bahru, Johor, Malaysia; (7) M. Khorami: Facultad de Arquitectura y Urbanismo, Universidad Tecnologica Equinoccial, Calle Rumipamba s/n y Bourgeois, Quito, Ecuador.

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