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Damage Spectrum and Its Applications to Performance-Based Earthquake Engineering

机译：损伤谱及其在基于性能的地震工程中的应用

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This paper presents the basic definitions of improved damage indices (DIs), their corresponding damage spectra, and potential applications to performance-based assessment of existing structures as well as performance-based design of new systems. Specifically two formats of damage spectra are presented in this paper: The first format of damage spectrum is a plot of the computed DI for an existing system versus structural period. Such damage spectra are convenient for performance-based damage assessment of existing facilities. For example, they can be used for post-earthquake near real-time damage assessment of structures based on recorded ground motions. The second format of the damage spectrum is a plot of the required strength, or maximum deformation, versus structural period for constant values of DI. Such damage spectra can be used for performance-based design of new systems. To present the concept, strength and deformation spectra for ten near-fault ground motions with directivity effects are computed. Average required yield strength and maximum deformation spectra for these near-fault records for constant values of DI are presented.
机译：本文介绍了改进损伤指数（DIS），它们对应的损伤和潜在应用的基本定义，以基于基于性能的现有结构的评估以及基于性能的新系统设计。具体地，本文提出了两种格式的损伤光谱：第一格式的损伤频谱是现有系统与结构时段的计算DI的曲线图。这种损坏光谱是基于性能的伤害评估现有设施方便。例如，它们可用于基于记录的地面运动的结构的实时伤害评估附近的地震。损坏光谱的第二种格式是所需强度或最大变形的曲线，与恒定值的结构周期。这种损坏光谱可用于基于性能的新系统设计。为了介绍10个近端故障接地运动的概念，强度和变形光谱，具有方向性效应。提出了用于恒定值的这些近故障记录的平均所需屈服强度和最大变形光谱。

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