SHEAR STRENGTH OF PRECAST PRESTRESSED HOLLOW SLABS WITH CONCRETE TOPPING

摘要: An experimental program was conducted to investigate the shear-carrying capacity of precast hollow slabs with concrete topping. Ten specimens composite member without shear reinforcement were tested as simply supported beams static two-point loading. The parameters investigated prestressing force, thickness topping, span-to-effective depth ratio, and tensile ratio. Prestresing force in element affects cracking strength greatly but has considerably less effect on ultimate strength. measured can be approximated reasonably by conventional prediction methods for monolithic reinforced use effective web width at hollows elements full topping cocnrete, respectively.