| 地震动特征的统计分析 |
| |
| 引用本文： | 孟凡超,郭鑫. 地震动特征的统计分析[J]. 防灾科技学院学报, 2011, 13(3): 21-24 |
| |
| 作者姓名： | 孟凡超 郭鑫 |
| |
| 作者单位： | 防灾科技学院,河北三河,065201 |
| |
| 基金项目： | 中国地震局教师科研基金项目 |
| |
| 摘 要： | 统计了国内外287次5级以上的实际地震记录,研究了地震动峰值不对称比、持时、地震荷载类型的统计特征和规律。结果表明：地震动峰值具有明显的不对称性,可以用峰值不对称比描述,统计结果具有规律性,其平均值总体上随震级加大而略有降低,从5级到8级地震其范围变化为1.4～1.2;地震动持时随震级增大而增大,近似于线性增长,震级从...
|
| 关 键 词： | 峰值不对称比 持时 荷载类型 |
Statistical Analysis of Ground Motion Characteristics |
| |
| Meng Fanchao,Guo Xin. Statistical Analysis of Ground Motion Characteristics[J]. Journal of Institute of Disaster-prevention Science and Technology, 2011, 13(3): 21-24 |
| |
| Authors: | Meng Fanchao Guo Xin |
| |
| Affiliation: | Meng Fanchao,Guo Xin(Institute of Disaster Prevention,Sanhe,Hebei 065201) |
| |
| Abstract: | Statistics at home and abroad were more than 287 magnitude 5 practical seismic records.The peak ground motion asymmetric ratio,the seismic load type,the statistical characteristics and laws were studied.The results show that the peak ground motion has obvious asymmetry,which can be expressed by peak asymmetry,statistical results show regularity,their average depresses with magnitude increase,between 1.4 and 1.2 from magnitude 5 to 8.Shaking increases with increase of linear growth,from 34 seconds to 81 seconds as the magnitude increases from 5 to8;Statistical results of load type regularity,and vibration model load proportion of approximate increase linearly with magnitude;if below magnitude 6.5,about 1/3 belong to vibration model,2/3 belong to impact type load;if above magnitude 6.5,half belong to vibration model. |
| |
| Keywords: | peak asymmetry ratio duration load type |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
