Study on Eccentric Compressive Behavior of Concrete Columns Reinforced with NPR735 High-Strength Steel Bars

In this paper, eccentric compressive tests and theoretical studies of grade 735 MPa reinforced concrete columns were conducted. The distance strength the longitudinal reinforcement used as experimental parameters to investigate bearing capacity, failure mode, behavior NPR735 high-strength steel bars. When load eccentricity was small or longitudinal, ratio large, occurred. results similar mode ordinary with traditional decreased, capacity increased, but deflection ductility specimen decreased. increased slightly. Finally, according current design methods in structure code, column obtained, calculated compared verify applicability code GB50010-2010 reinforcement.