Implication of Northridge Earthquake on 1994 NEHRP Provisions and Seismic Restraint Performance on Nonstructural Components

小行星9416480 在大地震中观测到的非结构性破坏在研究非结构构件的抗震性能方面发挥了重要作用。 这些措施包括为非结构部件制定规范和规定，规定这些部件必须锚固或连接到主要结构的安全水平，以及为锚固细节和约束制定抗震设计指南。 本研究项目的目标是评估北岭地震对以下两个具体和相互关联的研究问题的影响： (a)最近建议的1994年《国家环境和人权政策》规定， 非结构组件。 北岭的损失 数据提供了一个评估 各种动态效应因子的赋值 包含在力和位移公式中。 (b)选定的一组地震约束的性能 位于受影响地区，其中一些只有 最近开发的。 北岭事件提供了 第一次有机会评估其业绩， 真正的规范级地震 这项研究的结果将导致更好地了解在各种条件下的非结构部件的抗震性能。 反过来，这些结果将导致更安全和更合理的设计准则的发展，在地震环境中操作这些组件。 ***

9416480 Soong Observed nonstructural damage during major earthquakes has played an important role in the investigation of a wide range of research issues dealing with seismic behavior of nonstructural components. These include the formulation of codes and provisions for nonstructural components which specify safety levels at which these components must be anchored or attached to a primary structure and the development of seismic design guidelines for their anchorage details and restraints. The objectives of this research project ar to assess the impact of the Northridge earthquake on the following two specific and interlocking research issues: (a) The recently recommended 1994 NEHRP provisions for nonstructural components. The Northridge damage data provides a unique opportunity for assessing the values assigned tovarious dynamic-effect factors contained in the force and displacement formulas. (b) The performance of a selected group of seismic restraints located in the affected area, some of which were only recently developed. The Northridge event provides the first opportunity for evaluating their performance under an actual code-level earthquake. The results of this research will lead to a better understanding of the seismic behavior of nonstructural components under a wide variety of conditions. In turn, these results will leade to the development of safer and more rational design guidelines for operating these components in a seismic environment. ***