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论文类型：期刊论文

发表时间：2017-10-03

发表刊物：JOURNAL OF EARTHQUAKE ENGINEERING

收录刊物：SCIE、EI、Scopus

卷号：21

期号：7

页面范围：1050-1069

ISSN号：1363-2469

关键字：Shape Memory Alloy; Residual Displacement; Bridge Piers; Performance-Based Earthquake Engineering; Fragility Curves

摘要：The application of superelastic Shape Memory Alloy (SMA) reinforcement in plastic hinge regions of bridge piers has been proven to reduce the residual displacement after a strong shaking owing to its unique shape recovery characteristics; however, the maximum deformation of the piers could increase due to the relatively lower modulus of elasticity of SMA bars and lower hysteretic energy dissipation capacity. In this context, this article applies a recently formulated probabilistic performance-based seismic assessment methodology that considers both the maximum and the residual deformation simultaneously to evaluate the performance of SMA reinforced bridge piers.