What is the purpose of providing confinement reinforcement in RCC columns as per IS 13920?
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The primary purpose of providing confinement reinforcement in RCC columns as per IS 13920 is to enhance the ductility and energy dissipation capacity of the columns under different seismic forces. Confinement reinforcement also reduces the risk of buckling of longitudinal reinforcement and enhances the bond between concrete and reinforcement, ensuring the stability of the structure under seismic forces.