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

在典型的商业建筑中，非结构部件、设备和内容（NCEC）的价值远远超过了结构本身的成本。因此，在地震发生时，总潜在损失的很大一部分是由于NCEC的损坏。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，其本身就不那么重要了。如果不能满足这些标准，可能会导致操作中断和昂贵的维修费用。抗震防护技术，如隔震和耗能装置，遵循的抗震设计方法是基于减少对结构的地震需求，而不是增加结构的抗震能力。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，但结构工程界目前并未将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的增加，新一代建筑规范将从规定性条款转向基于性能的方法，侧重于系统级性能。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；并研究如何将防震技术纳入建筑设计中，以提高包括NCEC在内的整体结构-非结构系统的性能。将NCEC性能整合到系统级性能评估中，将对具有抗震技术的建筑的设计方式产生重大影响。该研究项目的研究结果将有助于NBCC未来版本的抗震隔离规定，以及下一个CSA S832“建筑物操作和功能部件（OFCs）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.