Experimental evaluation of flexural behavior of composite beams with cast-in-place concrete slabs on precast prestressed concrete decks

This paper focuses on a new type of steel-concrete composite beams consisting of cast-in-place concrete slabs on Precast Prestressed Concrete Decks (PPCDs). To evaluate flexural performance of such composite beams, this research team conducted an experimental investigation on twelve specimens. Test results show that the composite beams with PPCDs can exhibit desirable and stable flexural performance under monotonic loading. Based upon the test results, this paper also evaluates the influence of some key design parameters (e.g., concrete slab thickness, amount of shear studs and longitudinal reinforcement ratio) on flexural performance of the composite beams.