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| 基线漂移对长周期反应谱的影响 | |
| 引用本文： | 耿淑伟,陶夏新. 基线漂移对长周期反应谱的影响[J]. 黑龙江大学自然科学学报, 2007, 24(5): 670-672 |
| 作者姓名： | 耿淑伟 陶夏新 |
| 作者单位： | 合肥工业大学,土木建筑工程学院,合肥,230009;中国地震局,哈尔滨工程力学研究所,哈尔滨,150080 |
| 摘 要： | 采用Hilbert-Huang变换,对数字强震仪记录进行了分析,得到了几个典型记录的最低频固有模态函数(IMF),比较了常规处理记录和去除最低频IMF的记录加速度反应谱的差别,这种差别很小。据此得出了记录基线漂移对长周期反应谱的影响很有限的结论,指出数字化强地震动记录在长周期段是可靠的,设计反应谱可向长周期扩展。 |
| 关 键 词： | 数字强震仪 强震记录 基线漂移 影响 |
| 文章编号： | 1001-7011(2007)05-0670-03 |
| 修稿时间： | 2007-08-08 |
The effect of baseline offset to response spectra in long period |
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| Geng Shuwei,Tao Xiaxin. The effect of baseline offset to response spectra in long period[J]. Journal of Natural Science of Heilongjiang University, 2007, 24(5): 670-672 | |
| Authors: | Geng Shuwei Tao Xiaxin |
| Abstract: | Hilbert-Huang Transform is adopted to deal with strong motion records,the lowest frequency inherent mode function(IMF) of some representative records are drawn out.The difference is very small between general records and those without the lowest frequency IMF.The result are drawn that the effect of baseline setoff is finite to response spectra in long period,the digital strong motion records are credible in long period,the design response spectra can be extended to longer period. |
| Keywords: | strong motion record strong motion seismograph baseline offset effect |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |