Minimum flexural reinforcement for T-beams made of higher strength concrete

Design codes specify minimum flexural reinforcement for reinforced concrete beams. With the extensive use of higher strength concrete, the empirical e xpressions of the past for minimum flexural reinforcement, in which the con crete strength is not considered, had to be revised. Six reinforced concret e T-beams, having small ratios of flexural reinforcement, were tested to st udy the behaviour at the positive moment region and to evaluate the code re quirements on minimum flexural reinforcement. A criterion was set and evalu ations of different minimum reinforcement requirements were made using this criterion and the test data.