Shear strength prediction for concrete members

This study presents alternative shear strength prediction equations for ste el-reinforced concrete members without web reinforcements. It uses the tech niques of dimensional analysis, interpolation function, and multiple regres sion analysis. More than 350 data were obtained from existing sources of re inforced concrete beam shear test results covering a wide range of beam pro perties and test methods. This analysis was done for both normal-strength c oncrete and high-strength concrete members with compressive strength up to 104 MPa (15,110 psi), The derivation of accurate cracking and ultimate shea r strength prediction equations incorporated the original use of an interpo lation function that takes into account the difference in behavior between the arch action of short beams and the beam action of long beams. The use o f the interpolation function was instrumental in producing accurate crackin g and ultimate shear strength equations as evidenced by the excellent corre lation between experimental and theoretical values.