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

典型商业建筑中的非结构构件、设备和内容物(NCEC)的价值使结构本身的成本相形见绌。因此，在发生地震的总潜在损失中，很大一部分是由于NCEC的破坏。虽然在地震事件中满足结构性能标准对于防止人员伤亡是必不可少的，但如果不满足NCEC性能标准，那么它本身就不那么重要了。如果不能满足这些标准，可能会导致运行中断和维修费用高昂。抗震技术，如隔震和耗能装置，遵循一种基于减少对结构的地震需求而不是增加结构的抗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重视程度的提高，新一代建筑规范将从规范性规定转向基于性能的方法，侧重于系统级的性能。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；并研究如何将抗震技术纳入建筑设计，以改善包括NCEC在内的整体结构-非结构体系的性能。将NCEC性能纳入系统级性能评估将显著影响采用抗震技术的建筑的设计方式。研究计划的发现将有助于NBCC未来版本中的隔震条款，以及下一个CSA S832“建筑物操作和功能部件(OFC)风险降低”标准的制定。

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.