Techno Press

Steel and Composite Structures   Volume 28, Number 4, August25 2018, pages 483-494
Shear capacity equation for channel shear connectors in steel-concrete composite beams
Masoud Paknahad, Mahdi Shariati, Yadollah Sedghi, Mohammad Bazzaz and Majid Khorami

Abstract     [Full Text]
    In this research the effect of high strength concrete (HSC) on shear capability of the channel shear connectors (CSC) in the steel concrete composite floor system was estimated experimentally and analytically. The push-out test was carried out for assessing the accurateness of the proposed model (nonlinear and finite element model) for the test specimens. A parametric analysis was conducted for predicting the shear capacity of the connectors (CSC) in the HSC. Eight push-out specimens of different sizes of channels with different high strength concrete were tested under the monotonic loading system. The aim of this study was to evaluate the efficacy of the National Building Code of Canada (NBC) of Canada for analysing the loading abilities of the CSC in the HSC. Using the experimental tests results and verifying the finite element results with them, it was then confirmed by the extended parametric studies that the Canadian Design Code was less efficient for predicting the capacity of the CSC in the HSC. Hence, an alternative equation was formulated for predicting the shear capacity of these connectors during the inclusion of HSC for designing the codes.
Key Words
    high strength concrete; channel shear connector; push-out test; finite element analysis; steel concrete composite floor
(1) Masoud Paknahad:
Department of Civil Engineering, Mahallat Institute of Higher Education, Mahallat, Iran;
(2) Mahdi Shariati:
Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran;
(3) Mahdi Shariati:
Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia;
(4) Mahdi Shariati:
Department of Civil Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia;
(5) Yadollah Sedghi:
Department of Civil Engineering, Qeshm International Branch, Islamic Azad University, Qeshm, Iran;
(6) Mohammad Bazzaz:
Department of Civil, Environmental, and Architectural Engineering, University of Kansas, Lawrence, KS, USA;
(7) Majid Khorami:
Facultad de Arquitectura y Urbanismo, Universidad Tecnologica Equinoccial, Calle Rumipamba s/n y Bourgeois, Quito, Ecuador.

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