Minimum Flexural Reinforcement Research Articles

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

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

Unified Minimum Flexural Reinforcement Requirements for Reinforced and Prestressed Concrete Members

This study was undertaken to simplify, and to the extent possible, to unify ACI 318 minimum flexural reinforcement requirements for reinforced and prestressed concrete members. A major goal was to eliminate the feature of current provisions for prestressed concrete members in which the minimum reinforcement requirement increases with increasing levels of prestress. The concept of increasing minimum reinforcement requirements for prestressed members with increases in the level of prestress is not supported by the research results reviewed in this study, or by the analytical investigations reported herein. This study includes review of relevant research reports, review of existing ACI 318 code provisions for minimum flexural reinforcement, and review of the minimum flexural reinforcement provisions of the CEB-FIP Model Code for Concrete Structures. On the basis of this review, new unified formulas and essentially unified code provisions are proposed for minimum flexural reinforcement of reinforced and prestressed concrete members.