Seismic design and evaluation of non-structural building components

非结构构件（包括建筑构件、建筑设备和建筑构件）占建筑物总建筑成本的75-85%。在最近的强烈地震中报告的典型损失表明，即使在性能良好的建筑物中，NSCs的损坏也会造成巨大的经济损失。对于医院、应急管理中心、供水和水处理设施等关键设施而言，功能的丧失或中断可能特别重要。加拿大国家建筑规范（NBCC）的理念是寻求国家建筑中心的生存，而不解决其脆弱性。该方法假设NSCs和建筑物的行为是解耦的，并提供了经验方程来估计NSCs的峰值水平楼层加速度需求。NSCs的峰值垂直楼层加速度需求尚未得到解决。该项目的长期目标是建立一个国际公认的研究项目，研究典型的NSCs对建筑物抗震性能的贡献。在基于性能的地震工程框架下，提高NSCs的抗震性能不仅是控制生命安全，而且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，这项为期5年的研究计划将侧重于通过应用当前版本的NBCC中可用的经验方程来提高地震目标性能水平。在加拿大地震灾害背景下，将通过合理确定其峰值水平和垂直地板加速度和频谱的地震需求来评估“加速度敏感”NSCs对地震的脆弱性。然后，通过将NSCs整合到建筑结构分析中并提出简化的建模技术，研究NSCs与建筑结构的相互作用。最后，该项目将帮助支持5名研究生。

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.