Flexural Behavior of Composite Concrete Deck Slab-Steel Beams: a review

الملخص

One of the most important structures in modern civil engineering is the composite beams, which refer to beams that consists of different materials whereby the most common are the concrete slabs and steel beams. This paper aims at presenting the state of research on the behavior and performance of composite beams emphasis has been put on the Shear connections. Some of the commonly used shear connectors include headed steel studs, channel connectors, and angle connectors, which improve the load bearing of steel and concrete structures. Literature review show that important parameters such as connection type, concrete strength and connection layout have been found to affect considerably the ultimate moment, the fatigue behavior and the failure mode of the connection. In particular, it is important to mention that new materials, such as ultra-high performance concrete (UHPC), and connector designs offer the potential for increasing loads and durability of connections. It is within this context that this review underlines the need to identify and manage design parameters to guarantee safe and efficient use of composites in beam structures.