Load Capacity of lsotropically Reinforced, Cast-in-Place and Precast Panel Bridge Decks

摘要

align="left">A 20 x 50 (6.10 x 15.24 m), full scale bridge deck (both cast-in-place and precast panel), detailed using Texas SDHPT provisions for decks with Ontario-type isotropic reinforcement, was constructed in? the laboratory. The ultimate load performance of the deck was investigated. Under single and tandem concentrated loads, the deck failed in punching shear. The ultimate concentrated load capacity of the deck? was? closely predicted by a proposed general punching shear model. Both the current ACI and AASHTO punching shear formulas were very conservative.