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Comparison between the behaviors of fully encased cold‐formed steel joists and hot‐formed steel joists with prestressed concrete: Experimental analysis
AbstractThis paper investigates the behaviors of different types of prestressed concrete beams utilizing fully encased cold‐ or hot‐formed steel joists. Twelve types divided into two sets of composite beams are assessed. Set 1 is composed of six beams utilizing cold‐formed steel (CFS) joists distinguished by the cross‐sectional steel‐to‐concrete ratios of 1%, 2%, and 3%, and the presence or absence of web openings. Set 2 has the similar composition but utilizes hot‐formed steel joists. Four‐point and three‐point bending tests were conducted at the mid‐span of the composite concrete beams. Key properties, such as strength, stiffness, flexural load capacity, ductility, energy absorption capacity, and failure modes, were used in the analysis. It was found that the specimens with CFS I‐beam joists provided better performance compared to those with hot‐formed steel joists. Also, the existence of web openings in the encased CFS beams enhances the ductility and energy absorption of the composite concrete beams.
Comparison between the behaviors of fully encased cold‐formed steel joists and hot‐formed steel joists with prestressed concrete: Experimental analysis
AbstractThis paper investigates the behaviors of different types of prestressed concrete beams utilizing fully encased cold‐ or hot‐formed steel joists. Twelve types divided into two sets of composite beams are assessed. Set 1 is composed of six beams utilizing cold‐formed steel (CFS) joists distinguished by the cross‐sectional steel‐to‐concrete ratios of 1%, 2%, and 3%, and the presence or absence of web openings. Set 2 has the similar composition but utilizes hot‐formed steel joists. Four‐point and three‐point bending tests were conducted at the mid‐span of the composite concrete beams. Key properties, such as strength, stiffness, flexural load capacity, ductility, energy absorption capacity, and failure modes, were used in the analysis. It was found that the specimens with CFS I‐beam joists provided better performance compared to those with hot‐formed steel joists. Also, the existence of web openings in the encased CFS beams enhances the ductility and energy absorption of the composite concrete beams.
Comparison between the behaviors of fully encased cold‐formed steel joists and hot‐formed steel joists with prestressed concrete: Experimental analysis
Structural Concrete
Elkhansa, Hanadi (author) / Barraj, Firas (author) / Ahmad, Samer (author)
Structural Concrete ; 25 ; 2465-2479
2024-08-01
Article (Journal)
Electronic Resource
English
Dynamic Behaviour of Floors With Cold-Formed Steel Joists
British Library Conference Proceedings | 2000
|New composite beams having cold-formed steel joists and concrete slab
Elsevier | 2014
|Dynamic Behaviour of Floors With Cold-Formed Steel Joists
British Library Conference Proceedings | 2000
|