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.