Seismic Structural Damage, Reliability, and Design

该项目旨在开发更多的概念和方法，以及扩展现有的概念，用于定量评估地震结构的损伤和可靠性，并实施损伤限制抗震设计。该程序的具体内容如下：开发定义结构地震损伤的量化模型，定义与损伤相关的地面运动强度，并制定在可靠性框架内进行损伤限制抗震结构设计的标准和相关程序。基于已建立的损伤容限水平和新定义的损伤指数，对已建立的新损伤模型进行了扩展。有必要进一步改进，以涵盖各种材料类型和结构系统。结果将导致抗震设计的重大改进，并提供了一种以可接受的成本保持足够安全的手段。

This project is to develop additional concepts and methods, as well as extend existing concepts, for quantitative assessment of seismic structural damage and reliability, and implementation of damage-limiting aseismic design. The specific components of the program are as follows: to develop quantitative models for defining seismic damage of structures, to define damage-related ground motion intensity, and to develop criteria and suggest associated procedures for designing damage-limiting earthquake-resistant structures within the framework of reliability. The research is expanded on the noval damage model already developed based on the established damage tolerance levels and a newly defined damage index. Further improvement is necessary to cover various material types and structural systems. The results would lead to major improvements in seismic design and provde a means to maintain adequate safety at acceptable costs.