【摘要】 在地震动平稳过滤有色噪声模型基础上，基于“二态Ｍａｒｋｏｖ，，跨越假定完善了模型参数的确定方法，建立了地震动随机模型与抗震设计规范ＧＢＪ１１－８９的联系。具体确定了模型参数（平稳持时Ｔｄ，谱强度因子Ｓ０和非平稳强度函数ｆ（ｔ）与三水准烈度（小震、中震和大震）、场地类别、近远震的定量关系，为工程结构的概率抗震设计提供了初步可用的输入地震动模型与荷载标准。更多还原

【Abstract】 In this paper, based on the modified random process model of earthquake ground motion and two state Markov crossings, the methods for determinating the parameters in model are sophisticated. Then from the view of engineering seismology, and corresponding to the aseismic design code GBJ11-89 about three level intensity (small, middle and large earthquake) and site soil class and far or near seismic area, the parmeters in the model the stationary duration spectral factor and strength envelope function are determined by using the random extreme value theory and statistical analysis results of strong earthquake records. The modified model and parameters determined in the paper provide the random process model of earthquake ground motion and the standard load for the aseismic probabilistic design of engineering structures.更多还原