| 921台湾地震近断层强地面运动的周期和幅值特性 |
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| 引用本文： | 王国权,周锡元,马宗晋,曾德民. 921台湾地震近断层强地面运动的周期和幅值特性[J]. 工程抗震与加固改造, 2001, 0(1): 30-36 |
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| 作者姓名： | 王国权 周锡元 马宗晋 曾德民 |
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| 作者单位： | 1. 中国地震局地质研究所
2. 中国建筑科学研究院 |
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| 基金项目： | 国家自然科学基金的资助 !(No 5 9895 410 ) |
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| 摘 要： | 本文以 92 1台湾地震的 30组近断层加速度时程为样本 ,研究了他们的周期(频率 )和幅值的随机特性 ,主要内容包括峰值加速度PGA、特征时刻与持时、幅值概率密度谱、幅值包线、周期频度谱以及穿零率函数。提出了二次峰点法求包线的方法 ,并建立了相应的数学模型
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| 关 键 词： | 921台湾地震 加速度时程 随机过程 统计特性 |
The Characteristic of Amplitude and Period of Near Fault Ground Motion of the September 21, 1999 Taiwan Earthquake |
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| pei, Taiwan. The Characteristic of Amplitude and Period of Near Fault Ground Motion of the September 21, 1999 Taiwan Earthquake[J]. Earthquake Resistant Engineering and Retrofitting, 2001, 0(1): 30-36 |
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| Authors: | pei Taiwan |
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| Affiliation: | Wang Guoquan et al |
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| Abstract: | In this paper,the acceleration time history of 30 near fault stations triggerd by September 21 ,1999 Taiwan earthquake is taken as sample to study the random characteristic of periods (frequencies) and amplitudes The main content includes : peak ground acceleration (PGA),characteristic time and duration,amplitude probability-density spectra, amplitude envelope ,period-frequency spectra and crossing-zero rate functions A double peak point method is presented to find the envelope,and the corresponding mathematical model is established |
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| Keywords: | september 21 1999 Taiwan earthquake acceleration time history random process statistical property |
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