Modeling of shear strength of rc beam without web reinforcement by stepwise regression

experimental studies has also been carried out regarding shear strength of RC beams without web reinforcement and a wide range of experimental database (398 tests) has been gathered from literature from 46 separate studies. New expressions are proposed based on the database taking into account the observed behavior for the design of normal-strength reinforced concrete beams without web reinforcement. The database is used for studying parameters that affect shear behavior/strength and for evaluating and comparing four national shear design provision (ACI 318-02, CSA A23.3 2004 edition (Collins, 2003), Euro code EC2 Part 1 (1994, 2003) and the German Code (DIN, 2001)) as well as for identifying research needs.