Shear Transfer in Reinforced Concrete

Presents a study of shear transfer in reinforced concrete, that is, the transfer of shear across a plane, such as at the interface between a precast beam and a cast-in-place slab. Thirty-eight pushoff specimens were tested, some with, some without a pre-existing crack along the shear plane. The shear-friction theory was found to give a conservative estimate of the shear transfer strength of initially cracked concrete. A method is presented for the calculation of shear transfer strength in initially uncracked concrete, based on the Zia envelope to Mohr circles representing failure conditions for concrete.