FEMA P695-Quantification of Building Seismic Performance Factors简介

A Brief Introduction of FEMA P695—Quantification of Building Seismic Performance Factors

目前,各国建筑抗震设计规范对结构在"大震"下倒塌概率的评估尚不完善。FEMA P695以美国现行规范为基础,提出了一套用于标定其建筑抗震设计规范中关键设计参数的方法,用以保证结构在"大震"下的倒塌概率不超过某一可接受的值。介绍了美国建筑抗震设计规范的理论基础,说明了FEMA P695中关键参数的定义与美国现行抗震规范中设计参数的关系,详细介绍了该方法的基本内容、方法流程、关键细节、理论思路等,为了解美国抗震规范的发展方向及水平提供了参考。

In current specifications,evaluation of collapse probability for buildings in severe earthquakes has not been well solved all over the world.Based on the current American seismic design code of buildings,FEMA P695 proposes a guideline to calibrate the key design parameters to ensure the collapse probability of buildings in severe earthquakes not exceeding an acceptable value.In this paper,theoretical principle of the current American seismic design code of buildings and its relationship with FEMA P695 are introduced briefly.The method,process,key details and theoretical concept of FEMA P695 are discussed to provide an outlook about the development of the seismic reliability design for buildings in the United States.