Simple Rational Formulas for Cracking Torque and Twist of Reinforced Concrete Members

摘要: The softened membrane model for torsion (SMMT) can predict the entire torque-twist curve, including cracking point, reinforced concrete members. In SMMT, however, point has to be determined via a complicated iterative solution algorithm. This paper presents step-by-step simplification of SMMT and proposes set simple formulas direct calculation both torque twist. are validated with tests 93 torsional specimens compared three other empirical formulas. Findings show that proposed enough used design purposes. They also capable producing more rational accurate predictions than