"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: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636504
• 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.

在典型的商业建筑中，非结构部件、设备和内容物（NCEC）的价值使结构本身的成本相形见绌。因此，在地震发生时，总的潜在损失中有很大一部分是由于NCEC的破坏。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，则其本身的重要性较小。不满足这些标准可能导致操作中断和昂贵的维修。地震保护技术，如地震隔离和能量耗散装置，遵循基于减少对结构的地震需求而不是增加结构的地震能力的抗震设计方法。虽然预计这些技术将减少对NCEC的抗震需求，从而提高其性能，但结构工程界目前没有将NCEC纳入分析和性能评估过程。然而，随着对基于性能的设计的强调增加，新一代建筑规范将从规范性规定转向基于性能的方法，重点是系统一级的性能。这就迫切需要产生必要的知识，以提高我们对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的设计中，以提高包括NCEC在内的整体结构-非结构系统的性能。将NCEC性能集成到系统级性能评估中将显著影响具有地震防护技术的建筑物的设计方式。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。