Study on Seismic Performance of Concrete Columns and Beams Containing Recycled Brick Aggregate

Abstract

In order to study the reinforced concrete beam and column components composed of natural concrete (NC), recycled aggregate concrete (RAC), recycled brick grain concrete (RBGC) and recycled brick aggregate concrete (RBC), the reinforced columns under the axial tension and compression cyclic load and the horizontal cyclic load and the simply supported beam under concentrated mid-span cyclic load are simulated respectively. The transient time history analysis is conducted to analyze their failure characteristics, hysteretic performance and energy dissipation performance. The results show that the damage of the column under horizontal cyclic loading is more obvious than that under vertical cyclic loading, and the energy dissipation is better, while the energy dissipation capacity of the beam is not as good as that of the column due to local concentration. The seismic performance of reinforced concrete columns and beams composed of RBGC and RBC materials is lower than that of NC and RAC materials. The materials of RBGC and RBC are more suitable for beam members.