ABSTRACT
A novel self-centering energy dissipation brace (SCEB) was developed to enhance the seismic resilience of bridges. In this paper, the replaceable SCEBs are installed between the double-column bent transversely and at the abutment longitudinally. Taking both the seismic safety and resilience into consideration, the seismic performance of bridges retrofitted by braces under near-fault (NF) pulse-like ground motions was evaluated by the probabilistic approach. Results show that the original and retrofitted bridges exhibit higher damage probabilities under NF pulse-like ground motions. The bridges retrofitted with SCEBs exhibit better seismic resilience than the bridges with buckling restrained braces when intensity measure increases.
Acknowledgements
The authors would like to acknowledge the support from National Natural Science Foundation of China (NSFC) (No. 51838010, 52108430), China Postdoctoral Science Foundation (No. 2021M693545, No. 2022T150732), and Beijing Municipal Education Commission (No. IDHT20190504, KZ202010005001) for carrying out this research.
Disclosure statement
No potential conflict of interest was reported by the author(s).