Evaluation of High-Deformation Capability and High-Strength Steels as Reinforcement in Reinforced Concrete Members Evaluation of High-Deformation Capability and High-Strength Steels as Reinforcement in Reinforced Concrete Members

Abstract In this study, use of a type of steel, which features high deformation capability and high yielding strength (≈540 MPa) as reinforcement in reinforced concrete members, is analyzed experimentally and analytically. The experimental portion of this study covers experiments with reinforced concrete members, which were tested under monotonic and reversed cyclic loads. These members were produced using two types of steel; one is the reinforcement steel which was used in the production of the members named "HSS", with high strength and deformability capacity, and the other is BCIII steel, generally used in the construction industry of Turkey. Within reinforced concrete member experiments, full-scaled prefabricated columns and full-scaled reinforced concrete beams were tested. Damage distributions of the same loading pattern were made for comparison purposes. The aim of the experimental program was to especially analyze stiffness, ductility, and earthquake performance characteristics of the members. Analytical studies contain section analyses for reinforced concrete members with HSS and BCIII steel. These members include experimentally analyzed full-scaled, prefabricated columns. The experimental and analytical results showed that beams reinforced with "HSS" exhibited more strength and toughness, in comparison with the ones produced with BCIII. And reinforced concrete columns reinforced with "HSS" steel reached bigger moment and lateral load carrying capacities in comparison with the ones reinforced with BCIII. Singular reinforced concrete elements like beams reinforced with "HSS" were found to have more energy absorption capacity than the ones with BCIII