Energy Dissipation Capacity of Reinforced Concrete Columns under Cyclic Displacements


ACI STRUCTURAL JOURNAL, vol.109, no.4, pp.531-540, 2012 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 109 Issue: 4
  • Publication Date: 2012
  • Title of Journal : ACI STRUCTURAL JOURNAL
  • Page Numbers: pp.531-540


The energy dissipation capacity of reinforced concrete (RC) columns is investigated under inelastic cyclic displacements. Experimental data are obtained from 20 column specimens tested under constant-amplitude displacement cycles and from three column specimens tested under variable-amplitude displacement cycles. The effect of failure mode, displacement ductility, material properties, and detailing on the energy dissipation capacity of columns is investigated first under constant-amplitude loading. A simple model is developed for predicting the cyclic energy dissipation capacity under constant-amplitude inelastic displacement cycles. Then, an analytical procedure is introduced for estimating the energy dissipation under variable-amplitude displacement cycles by using the energy dissipation capacity, under constant-amplitude displacements. The proposed procedure is verified with the test results.