|
|||||
|
|
Performance-Based Seismic Assessment of Superelastic Shape Memory Alloy-Reinforced Bridge Piers Considering Residual Deformations |
|
| Authors: | Bipin Shrestha Chao Li Hong Hao Hongnan Li |
| Affiliation: | 1. Department of Civil Engineering, Curtin University, Bentley, Australiabipinsh01@gmail.com;3. Department of Civil Engineering, Curtin University, Bentley, Australia;4. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China;5. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China |
| Abstract: | 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. |
| Keywords: | Shape Memory Alloy Residual Displacement Bridge Piers Performance-Based Earthquake Engineering Fragility Curves |