Seismic design and evaluation of non-structural building components

非结构建筑构件的抗震设计与评估

• 批准号: RGPIN-2016-05009
• 负责人: Assi, Rola
• 金额: $ 1.68万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=753894
• 关键词: Seismic; design; evaluation; non; structural

Non-Structural Components (NSCs) which include architectural components, building services and building content, account for 75-85% of the total construction cost in buildings. Typical damage reported in recent strong earthquakes reveals the heavy economic losses arising from damage to NSCs even in buildings that perform well. Loss or disruption of functionality can be particularly important in the case of critical facilities such as hospitals, emergency management centers, water supply and water treatment facilities. The National Building Code of Canada (NBCC) philosophy seeks the survival of NSCs without addressing their vulnerability. It assumes that the behavior of NSCs and the building are decoupled and provides empirical equations to estimate peak horizontal floor acceleration demand on NSCs. The peak vertical floor acceleration demand on NSCs is not addressed yet.The long-term objective of this program is to build an internationally-recognized research program studying the contribution of typical NSCs to the seismic performance of buildings. In the framework of the Performance-Based Earthquake Engineering, the enhanced seismic performance of NSCs is nowadays widely recognized to be a key factor in order to control economic losses and downtime in addition to life safety.As a step towards this goal, this 5-year research program will focus on enhancing the seismic target performance levels achieved by applying the empirical equations available in the current editions of the NBCC. In a Canadian seismic hazard context, the vulnerability of «acceleration-sensitive» NSCs to earthquakes will be assessed by determining rationally their seismic demand in terms of peak horizontal and vertical floor accelerations and spectra. Then, the interaction of NSCs with the building structure will be investigated by integrating NSCs into the structural analysis of the building and proposing simplified modeling techniques.Finally, this program will help to support five graduate students.

非结构构件 (NSC) 包括建筑构件、建筑服务和建筑内容，占建筑物总建筑成本的 75-85%，最近强烈地震中报告的典型损坏表明，即使 NSC 损坏也会造成严重的经济损失。对于医院、应急管理中心、供水和水处理设施等关键设施来说，功能丧失或中断尤其重要。加拿大国家建筑规范 (NBCC) 的理念是寻求生存。它假设 NSC 和建筑物的行为是解耦的，并提供经验方程来估计 NSC 的峰值水平地板加速度需求。尚未解决 NSC 的峰值垂直地板加速度需求。该计划的目的是建立一个国际认可的研究计划，研究典型的 NSC 对建筑物抗震性能的贡献，在基于性能的地震工程的框架内，增强建筑物的抗震性能。如今，除了生命安全之外，NSC 被广泛认为是控制经济损失和停机时间的关键因素。作为实现这一目标的一步，这个为期 5 年的研究计划将重点关注通过应用 NSC 来提高地震目标性能水平。 NBCC 当前版本中提供的经验方程在加拿大地震灾害背景下，将通过合理确定峰值水平和垂直地面加速度的地震需求来评估“加速度敏感”NSC 对地震的脆弱性。然后，通过将 NSC 集成到建筑物的结构分析中并提出简化建模技术，研究 NSC 与建筑结构的相互作用。最后，该计划将帮助支持五名研究生。