现行抗震规范下地震动随机模型参数研究  

Study on parameters of random earthquake ground motion model based on current seismic code

作　　者：任文杰[1,2] 赵利军[1,2] 穆蒙蒙 

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]河北省土木工程技术研究中心,天津300401

出　　处：《世界地震工程》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)

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.

关 键 词：地震动随机模型 模型参数 抗震规范 谱强度因子 

分 类 号：O324[理学—一般力学与力学基础] TU973.212[理学—力学]