Present Researches and Perspectives of Concrete Confined by Hoop Reinforcement

Reinforced concrete faces more challenges when the provisions in codes are improved all over the world. But that also brings chances to reinforced concrete which has excellent mechanical performance. Concrete is a kind of brittle material, and its ductility is poor. However, as a result of the lateral confinement of stirrup, the deformability and carry capacity of the concrete will be increased, which ensures the mechanical performance of reinforced concrete. This paper mainly introduces the present status of researches on the regional confined concrete, high-strength concrete confined by high-strength hoop reinforcement and some new types of confined concrete. In addition, this paper analyzes the comprehensive performance of them and prospects the development of reinforced concrete.