Composite decks composed of precast panels and cast-in-situ layers are widely used inbridges. Investigations showed that such composite decks with prestressed panels are economicallyand structurally attractive. Durability, ease and speed of construction, together with reduced need formaintenance are all advantages in using such system. In this paper , the behavior of a new proposedcomposite deck, consists of precast prestressed concrete folded corrugated panel and lightlyreinforced concrete , cast-in-sit , layer was investigated. Concrete shear keys with differentpercentages were utilized to work as horizontal shear connection between the composite deck layers.Three composite decks with precast prestressed concrete folded corrugated panels were tested underuniform load to study the overall behavior. the experimental results reveal the importance ofprestressing the precast panel since it enhance the overall behavior of such composite decks. Also,the experimental results showed that the behavior of the new proposed composite deck is lessaffected by the increase of the concrete shear keys rather than other similar decks with reinforcedprecast panels.
展开▼
