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考虑频率非平稳特性的地震波ARMA模型仿真方法
A Method on Synthesis of Spectrum-Compatible Accelerograms Using ARMA Models Considering the Non-stationary Frequencies
【摘要】 分析了人造地震波的特点与现状 ,给出了地震动频率非平稳特性的简化描述方法与统计规律 ,采用 ARMA模型研究了拟合反应谱的人造地震波合成方法 ,并通过算例对该方法进行了验证。
【Abstract】 The distinctive feature and status in quo of artificial ground motions is analyzed in this paper, which set forth a simplified method to describe the non stationary frequencies of earthquake ground motions and statistical laws. A method on synthesis of spectrum-compatible accelerograms using ARMA models considering the earthquake non-stationary frequencies is introduced and it proved to be feasible by the analysis of an example.
【关键词】 地震波;
频率非平稳;
合成与模拟;
ARMA模型;
反应谱拟合;
【Key words】 earthquake ground motion; non stationary frequencies; simulation and synthesis; ARMA model; spectrum compatible;
【Key words】 earthquake ground motion; non stationary frequencies; simulation and synthesis; ARMA model; spectrum compatible;
【基金】 国家自然科学基金!项目“工程结构的地震动输入问题研究”( 598780 55)
- 【文献出处】 重庆建筑大学学报 ,JOURNAL OF CHONGQING JIANZHU UNIVERSITY , 编辑部邮箱 ,2000年S1期
- 【分类号】TU318
- 【被引频次】36
- 【下载频次】286