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- 저자 : Bilal Maghaghi (검색결과 1 건)
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Experimental evaluation of new channel shear connector shapes
Bilal Maghaghi,Messaoud Titoum,Aida Mazoz 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.3
In a steel–concrete composite beam, the channel shear connector is an easy solution to ensure the connection due to its availability and the simplicity of its welding. However, increasing the channel shear connector length negatively aff ects the concrete slabs and creates diffi culties to cross the longitudinal reinforcing bars. To solve this problem, fi ve new channel shear connector shapes are proposed and studied in this paper. Twelve push-out tests using a new setup, and three pull-out tests, were carried out under monotonic loading to identify the shape that gives the best performance. The failure modes, the eff ects of new channel shapes on the load-slip behavior, the concrete slaps, the bending deformation, and the height between the two plastic hinges that appeared near the base of channel connectors were mainly studied. The study reveals that the modifi cation of the channel shear connector shape is a promising way and positively infl uences the concrete-connector relationship and also the bending deformation capacity of the channel connector. As a result, the concrete cracking decreased, the ductility increased between about 15–31%, and the ultimate strength improved slightly between about 0–5.1%. Finally, the experimental results are compared to the existing equations.
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