摘要
以《建筑抗震设计规范》(GB50011─2010)为基础,对地震动过滤有色噪声模型参数的取值进行研究。针对平稳模型和非平稳模型,区分多遇地震和罕遇地震两种情况:给出了与规范场地类别和设计地震分组相对应的场地覆盖层阻尼比和卓越频率;采用随机极值理论,建立了谱强度因子与规范最大地面加速度的对应关系。研究成果为工程结构抗震设计提供了可用的随机地震动荷载标准。
Study on choice of parameters on the code for seismic design of building value of the ground motion filtered color noise model was carried out based （GBSO011-2010）. In view of stationary random earthquake ground motion model, and non-stationary model,frequently occurred earthquake condition and seldom occurred earthquake condi- tion were distinguished. The damping ratio and predominant frequency of the site soil corresponding to the site clas- sification and the design earthquake group were presented. Using stochastic extreme theory, the relation between spectral intensity factor and the normal maximum ground acceleration was established. The research achievements provide the standard of random earthquake load for the seismic design of engineering structures.
出处
《世界地震工程》
CSCD
北大核心
2017年第2期33-38,共6页
World Earthquake Engineering
基金
中国博士后科学基金面上项目(2013M541165)
住宅和城乡建设部科学技术计划项目(2014-K4-037)
关键词
地震动随机模型
模型参数
抗震规范
谱强度因子
random earthquake ground motion model
model parameter
seismic code
spectral intensity factor
