The Structural Engineer > Archive > Volume 66 (1988) > Issues > Issue 14 > Strength of Vertical Plane Joints Between Large, Precast Concrete Panels
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Strength of Vertical Plane Joints Between Large, Precast Concrete Panels

The shear resistance of vertical plane joints between large, precast concrete panels is investigated experimentally. A total of 18 specimens with varying joint width, number and shape of bars in the joint and shape of section were tested under pure shear, shear and compression or shear and bending. Results obtained are compared with the available theoretical method, as well as with the design provisions of BS 8110 and the ACI Code. A general prediction model isproposed, taking into consideration the combined effect of the dowel action of the reinforcing bars and the shear resistance of concrete, under different types of loading. The model gave lower bound values which are in better agreement with experimental results, with a factor of safety of 1.15. It is also concluded that the width of plane joints has a significant effect on the shear resistance and should not be neglected in design. Professor H.M.S. Abdul-Wahab and S.Y.H. Sarsam