| Abstract | This scoping study undertakes a thorough review of both state-of-the-practice and state-of-the-art on acceptance criteria for the seismic performance-based design and assessment of non-structural components (NSCs). The National Building Code of Canada (NBC) currently specifies 24 typologies of NSCs. This scoping study focuses on reviewing the state-of-the-practice and state-of-the-art of the seismic design and assessment of NSCs matching any of these typologies. The primary goal was to identify gaps to develop comprehensive quantitative acceptance criteria for the seismic performance-based design and assessment of such NSCs typologies. As part of the state-of-the-practice review, various global seismic design and/or assessment provisions were analyzed, such as NBC 2020, upcoming NBC 2025, ASCE/SEI 7-22, ASCE/SEI 41-23, and Eurocode 8. It was found that current acceptance criteria for NSCs often rely on minimum force and drift levels, primarily based on seismic performance factors (SPFs) derived based on engineering judgment. This approach introduces significant uncertainty regarding the actual seismic performance of NSCs due to the empirical nature of these criteria. Additionally, there are several typologies of NSCs for which damage is poorly correlated with the level of force experienced by these components. In such cases, considering displacement or deformation-based acceptance criteria, which are better correlated with damage, may be appropriate. The state-of-the-art review explored recent studies that propose frameworks for quantifying and calibrating SPFs to meet specific performance objectives. Advanced methodologies like FEMA P-58 were discussed, highlighting the need for reliable fragility functions for NSCs. The review also covered comprehensive acceptance criteria developed through empirical testing and numerical modeling for certain NSC typologies. Several research gaps were identified for the seismic performance-based design of NSCs, including the quantification of SPFs, the quantification of inherent damping ratios for NSCs, and the development of displacement-based design procedures. Additional gaps include the quantification of vertical floor accelerations' effects, record-to-record variability, and the development of a code-oriented floor response spectrum (FRS) design approach applicable to the Canadian context. For the seismic performance-based assessment of NSCs, the study identified gaps such as the development and improvement of fragility functions, storey-loss functions, and the quantification of environmental loss impacts. Furthermore, it highlighted the need for optimization procedures based on environmental impacts, understanding the influence of seismic isolation and supplemental energy dissipation, and developing specific acceptance criteria for seismic performance-based assessments for different typologies of NSCs. National Research Council Canada Page vi The study emphasizes the importance of prioritizing the development of comprehensive acceptance criteria for seismic performance-based assessment of NSCs. This initiative would address several of the other identified research gaps, contributing significantly to the overall improvement of NSCs’ seismic performance. A procedure was proposed to determine comprehensive quantitative acceptance criteria for the seismic performance-based assessment of NSCs. The proposed procedure involves experimental testing, numerical studies, and data analysis to develop these criteria. Developing robust acceptance criteria is expected to enhance the seismic performance of NSCs, thereby reducing economic losses, downtime, casualties, and environmental impacts during future seismic events. |
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