摘要
增量动力分析方法是一种以弹塑性时程分析为基础的分析方法,不仅能较合理地评估不同性能水准下结构抗震能力,并且能够反映结构从弹性到弹塑性、逐渐损伤直至破坏倒塌的全过程。在增量动力分析的基础上,结合地震易损性分析,以4个不同结构高度的模型为算例,得出结构在3个地震水准下,超越5个破坏等级的概率,研究不同结构高度对结构抗震性能的影响,可为研究工程结构的地震破坏和损失提供有力的科学依据。
Incremental Dynamic Analysis（ IDA） is a method that based on elastic-plastic time history analysis. It can not only reasonably evaluate the seismic capacity of structures under different performance levels,but also can reflect the whole process from elastic to elastic-plastic,gradual damage to collapse. In this paper IDA is combined with seismic fragility analysis. Take the model of 4 different structure height as an example,the probabilities of five limit states are exceeded for three given ground motion intensity levels,which are estimated,respectively. Studying the effect of different structure height on seismic performance of structures can provide a powerful scientific basis for studying earthquake damage and loss of engineering structure.
作者
孙柏涛
张博
闫培雷
Sun Baitao;Zhang Bo;Yan Peilei(Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Adminisitration,Harbin 150080,China;Institute of Engineering Mechanics,CEA,Harbin 150080,China)
出处
《山西建筑》
2018年第18期27-29,共3页
Shanxi Architecture
基金
黑龙江省应用技术研究与开发计划(国家项目省级资助GX16C009)
国家科技支撑计划课题(2015BAK17B06)
中国地震局创新团队发展计划资助(中国大陆地区地震灾害模拟与评估)
国家自然科学基金项目(51508531)
关键词
增量动力分析
地震易损性
结构高度
抗震性能
incremental dynamic analysis
seismic fragility
structure height
seismic performance
