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断层附近的地震波频谱特性与结构动力反应分析 被引量:4
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作者 王锋 陈清军 《结构工程师》 2011年第5期102-110,共9页
在5.12汶川大地震中,国家数字强震动台网布设在龙门山断裂带及其周围地区有50多个台站获得了大于100 gal的加速度记录。选取其中断层附近21个台站的加速度记录,比较分析了断层附近基岩和土层表面地震波的时、频特性;在此基础上,分别以... 在5.12汶川大地震中,国家数字强震动台网布设在龙门山断裂带及其周围地区有50多个台站获得了大于100 gal的加速度记录。选取其中断层附近21个台站的加速度记录,比较分析了断层附近基岩和土层表面地震波的时、频特性;在此基础上,分别以实测基岩地震波和土层表面波作为输入,对框架结构进行了地震反应分析,比较了不同地震波作用下结构反应的差异,得到了有工程参考价值的结果。 展开更多
关键词 汶川8.0级地震 断层附近地震波 频谱特性 不同地震波 结构反应比较
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Comparison of Design Response Spectrum for Long Period Structures Based on Scenario Earthquakes
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作者 Xu Dandan Lv Yuejun +1 位作者 Chen Yang Pan Long 《Earthquake Research in China》 2014年第3期403-412,共10页
Two kinds of determining methods for scenario earthquakes are presented in this paper,namely the weighted average method and maximum probability method. This paper briefly introduces the two methods,then taking a high... Two kinds of determining methods for scenario earthquakes are presented in this paper,namely the weighted average method and maximum probability method. This paper briefly introduces the two methods,then taking a high-rise building in the Yantai area as a case study,we use the weighted average method and maximum probability method to realize seismic hazard analysis, determine earthquake magnitude, the epicenter and specific space position,and then give two response spectrums of the two methods. By comparing the differences of response spectrums between the two methods,we find that the weighted average method is more suitable for long period structures,while considering long period safety. The maximum probability method is more suitable for short period structures. It is reasonable to choose a corresponding different method when the structures have different natural vibration periods. 展开更多
关键词 Long period Scenario earthquake Weighted average method Maximumprobability method Response spectrum
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