Journals Proceedings

Abstract

In this study, the seismic performance of selfcentring precast segmental bridge columns with shape memory alloy (SMA) bars are analytically investigated. Nonlinear finite element analyses are conducted. This is shown that the selfcentring bridge columns have high lateral seismic demands due to their low energy dissipation which is undesirable. SMA starter bars which have unique re-centring capability against seismic loading are applied in this study. Nonlinear-static analyses show that self-centring precast bridge columns with SMA bars have superior performance in terms of energy dissipation and residual displacement.