地震动的双重过滤白噪声模型
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摘要
通过对白噪声模型、金井清模型和马尔可夫过滤有色噪声模型等常用地震动模型的分析,本文提出了更全面考虑基岩及土层的过滤特性且可解决有关加速度导数方差收敛性的新型地震动模型——双重过滤自噪声模型,并研究了其建模与定参方法.分析表明,该模型具有明确的物理意义,且更符合实际,颇具实用价值,为结构抗震可靠性分析提供了一种较好的地震动模型.
Through the analyses of the normal ground motion models, such as the While Noise Model, the Kanai Model and the Markov Model, a new ground motion model, called Bi-filtered White Noise Model, is presented in this paper. This model can more comprehensively consider the filtrating characteristics of bedrock and soil and can solve the convergence problem of derivate variance of acceleration process.And then the method of establishing the model and determining its parameters is studied. The analyses show that this model has definite physical meaning and conforms well to reality, so it can provide a feasible foundation for analysis of aseismic structure reliability.
Through the analyses of the normal ground motion models, such as the While Noise Model, the Kanai Model and the Markov Model, a new ground motion model, called Bi-filtered White Noise Model, is presented in this paper. This model can more comprehensively consider the filtrating characteristics of bedrock and soil and can solve the convergence problem of derivate variance of acceleration process.And then the method of establishing the model and determining its parameters is studied. The analyses show that this model has definite physical meaning and conforms well to reality, so it can provide a feasible foundation for analysis of aseismic structure reliability.
引文
[1]牛荻涛:基于弹塑性随机动力分析的抗震结构概率设计理论与方法,哈尔滨建筑大学博士论文,1991年8月.
[2]欧进萍、牛荻涛;地震地面运动随机过程模型的参数及其结构效应,哈尔滨建筑大学学报,1992年第2期.
[3]胡聿贤;《地震工程学》,地震出版社,1988年.
[4]金井清:《工程地震学》,地震出版社,1987年.
[5]叶天义:结构抗震的随机振动理论及应用研究,重庆建筑大学硕士论文,1993年6月.
[6]陈永祈、刘锡荟、龚思礼:拟合标准反应谱的人工地震波,中国建筑科学研究院.
[7]《建筑抗震设计规范》条文讲解,中国建筑科学研究院工程抗震研究所,1989年5月.
[8]A.Arias:A Measure of Earthquake Intensity in Seismic Design of Nuclear Power Plants(Ed.R.I.Hansen),MIT.Press,1970.
[9]G.W.Housner:Characteristics of Strong-Motion Earthquakes,BSSA,Vol.37,No.1,1947.
[2]欧进萍、牛荻涛;地震地面运动随机过程模型的参数及其结构效应,哈尔滨建筑大学学报,1992年第2期.
[3]胡聿贤;《地震工程学》,地震出版社,1988年.
[4]金井清:《工程地震学》,地震出版社,1987年.
[5]叶天义:结构抗震的随机振动理论及应用研究,重庆建筑大学硕士论文,1993年6月.
[6]陈永祈、刘锡荟、龚思礼:拟合标准反应谱的人工地震波,中国建筑科学研究院.
[7]《建筑抗震设计规范》条文讲解,中国建筑科学研究院工程抗震研究所,1989年5月.
[8]A.Arias:A Measure of Earthquake Intensity in Seismic Design of Nuclear Power Plants(Ed.R.I.Hansen),MIT.Press,1970.
[9]G.W.Housner:Characteristics of Strong-Motion Earthquakes,BSSA,Vol.37,No.1,1947.
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