"Seismic Protection Technologies to Improve the Performance of Nonstructural Components, Equipment and Contents"

“提高非结构部件、设备和内容性能的地震防护技术”

• 批准号: 418616-2012
• 负责人: Konstantinidis, Dimitrios
• 金额: $ 1.6万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573748
• 关键词: Seismic; Protection; Technologies; Improve; Performance

The value of nonstructural components, equipment and contents (NCEC) in a typical commercial building dwarfs the cost of the structure itself. Consequently, a very significant portion of the total potential losses in the event of an earthquake is due to NCEC damage. While satisfying structural performance criteria in a seismic event is imperative to prevent casualties, it is by itself of lesser importance if NCEC performance criteria are not met. Failure to satisfy such criteria can result in possible interrupted operation and costly repairs. Seismic protection technologies, such as seismic isolation and energy dissipation devices, follow an approach to earthquake resistant design that is based on reducing the seismic demand on a structure rather than increasing the seismic capacity of the structure. While it is expected that such technologies will reduce the seismic demand on NCEC, thus improving their performance, the structural engineering community currently does not integrate NCEC in the analysis and performance assessment process. However, as emphasis on performance-based design increases, the new generation of building codes will be shifting away from prescriptive provisions and moving towards performance-based approaches, focusing on system-level performance. This creates an urgent need to generate the necessary knowledge to improve our understanding of the seismic performance of NCEC; and to examine how earthquake protection technologies can be incorporated in the design of buildings to improve the performance of the integral structural-nonstructural system, which includes NCEC. The integration of NCEC performance into the system-level performance assessment will significantly impact the way buildings that feature earthquake protection technologies are designed. The findings of the research program will contribute to seismic isolation provisions in future versions of the NBCC and in the development of the next CSA S832 "Risk Reduction of Operational and Functional Components (OFCs) of Buildings" standard.

典型商业建筑中非结构部件、设备和内容 (NCEC) 的价值使结构本身的成本相形见绌。因此，地震造成的总潜在损失中很大一部分是由于 NCEC 损坏造成的。虽然满足地震事件中的结构性能标准对于防止人员伤亡至关重要，但如果不满足 NCEC 性能标准，其本身的重要性就不那么重要了。如果不满足这些标准，可能会导致运行中断和昂贵的维修费用。 地震防护技术，例如隔震和消能装置，遵循的抗震设计方法是基于减少结构的抗震需求而不是增加结构的抗震能力。虽然预计此类技术将减少 NCEC 的地震需求，从而提高其性能，但结构工程界目前并未将 NCEC 集成到分析和性能评估过程中。 然而，随着对基于性能的设计的重视程度不断提高，新一代建筑规范将从规范性规定转向基于性能的方法，重点关注系统级性能。这就迫切需要生成必要的知识来提高我们对 NCEC 抗震性能的理解；并研究如何将地震防护技术纳入建筑物设计中，以提高包括 NCEC 在内的整体结构-非结构系统的性能。 将 NCEC 性能纳入系统级性能评估将极大地影响采用地震防护技术的建筑的设计方式。该研究计划的结果将有助于 NBCC 未来版本中的隔震规定以及下一个 CSA S832“建筑物操作和功能组件 (OFC) 风险降低”标准的制定。