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.

非结构组件（NSC），包括建筑组件，建筑物服务和建筑内容，占建筑物总建筑成本的75-85％。在最近的强烈地震中报道的典型损害揭示了即使在表现良好的建筑物中，对NSC造成的巨大经济损失也会造成巨大的经济损失。在医院，紧急管理中心，供水和水处理设施等关键设施的情况下，功能丧失或破坏功能尤其重要。 《加拿大国家建筑法典》（NBCC）哲学寻求NSC的生存，而无需解决其脆弱性。它假设NSC和建筑物的行为是分离的，并提供了经验方程，以估计NSC对水平地板加速度的需求。尚未解决NSC的峰值垂直地板加速度需求。该计划的长期目标是建立一个国际认可的研究计划，研究典型NSC对建筑物地震性能的贡献。在基于绩效的地震工程的框架内，如今，NSC的地震性能增强了，人们被广泛认为是控制经济损失和停机时间之外的关键因素。作为朝着这一目标迈出的一步，这项为期5年的研究计划将重点侧重于在当前版本中应用经验性的偏用目标水平，以提高seisisic目标绩效水平。在加拿大的地震危险环境中，将通过在峰值水平和垂直地板加速度和光谱方面进行理性的地震需求来评估“加速度敏感” NSC对地震的脆弱性。然后，将通过将NSC集成到建筑物的结构分析并提出简化的建模技术中来研究NSC与建筑结构的相互作用。从本文中，该计划将有助于支持五位研究生。