摘要
21世纪我国经济急速发展,人口也急剧增长,这也使得地震对人类生命和财产安全造成的威胁更大,结构抗震研究需求日益增加。地震易损性分析技术对于结构破坏和损失预测都有着非同一般的应用价值,因此受到了国内外土木工程抗震界的广泛关注和研究。首先介绍了地震易损性分析的基本概念,具体地论述了用于地震易损性分析的三种方法,同时总结出此三种方法各自的优缺点;其次以RC框架结构为例论述了国内外地震易损性分析领域的研究发展,从上个世纪90年代开始进行了系统的梳理和分析。说明了地震易损性分析在研究过程中由于不确定性的存在而导致对分析结果准确度的影响;最后指出要想得到更接近于真实的易损性分析结果,还需考量易损性分析中的不确定参数,揭示了地震易损性分析研究领域所面临的挑战。
In the 21st century,with the rapid development of China's economy and the rapid growth of population,the threat of earthquake to human life and property security becomes greater,and the demand for seismic research is increasing.Seismic fragility analysis technology is of great application for structural damage and loss prediction,so it has been widely concerned and studied by civil engineering seismic research communities.This paper first introduces the concept of seismic fragility analysis,then specifically discusses three methods for seismic fragility analysis and summarizes their advantages and disadvantages.Taking RC frame structure as an example,this paper discusses the research on seismic fragility analysis at home and abroad,and makes a systematic review since 1990s.This paper explains the influences on the accuracy of the analysis results due to the existence of uncertainties in the calculation process.Finally,in order to get more close results to the real fragility analysis results,it is necessary to consider the uncertain parameters in the fragility analysis,and the challenges faced in this research field are revealed.
作者
刘洪波
佟瑶
蒋垚俊
丁嘉铭
张晶
LIU Hongbo;TONG Yao;JIANG Yaojun;DING Jiaming;ZHANG Jing(School of Civil Engineering and Architecture,Heilongjiang University,Harbin 150080,China;Institute of Engineering Mechanics,China Earthquake Administration,Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration,Harbin 150080,China)
出处
《世界地震工程》
CSCD
北大核心
2020年第3期141-150,共10页
World Earthquake Engineering
基金
中国地震局工程力学研究所基本科研业务费专项资助项目(2018D05)
国家自然科学基金项目(51678221)
黑龙江省高校基本科研业务费项目(KJCX201918)。
关键词
RC框架结构
地震易损性
抗震性能
数值模拟
RC frame structure
earthquake vulnerability
seismic performance
numerical simulation
