Analysis on Experimental Database of the Deformation Capacity of Reinforced Concrete Rectangular Column Members

Analysis on Experimental Database of the Deformation Capacity of Reinforced Concrete Rectangular Column Members

The lateral deformation demand for column members under an axial force can be obtained using inelastic dynamic analysis. The purpose of this research is to establish a relationship between the axial force ratio (P/P0) and the lateral deformation capacity of reinforced concrete (RC) column members, which can be used to design the confinement of these members. The study provides an empirical formula for the confinement and an effective and economical design for RC column members. This was achieved by collecting domestic and foreign basic design parameters and experimental results under the repeated loading of rectangular RC column members, creating a database of these members, and focusing on the parametric analysis for design conditions and their lateral deformation capacity. The analysis shows that the axial force ratio and the details of the transverse reinforcement are the main parameters that affect the lateral deformation capacity of RC column members. When the axial force ratio increases or the confinement decreases, the lateral deformation capacity of the column member decreases. The empirical formula for describing the confinement of RC column members can be used as a reference for design engineers.