| 爆破震动效应对建筑物的影响 |
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| 引用本文： | 李德林,方向,齐世福,刘强. 爆破震动效应对建筑物的影响[J]. 工程爆破, 2004, 10(2): 66-69 |
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| 作者姓名： | 李德林 方向 齐世福 刘强 |
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| 作者单位： | 中国人民解放军理工大学工程兵工程学院,南京,210007;中国人民解放军理工大学工程兵工程学院,南京,210007;中国人民解放军理工大学工程兵工程学院,南京,210007;中国人民解放军理工大学工程兵工程学院,南京,210007 |
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| 摘 要： | 介绍了爆破地震效应的研究概况,论述了爆破地震对建筑物的影响因素。利用支撑爆破中三次爆破震动的监测数据,拟合了速度、加速度和位移反应谱曲线。文中对这些反应谱曲线进行了分析和比较,讨论了爆破地震效应对建筑物的影响。同时,阐述了爆破震动下建筑物的频谱特性。由频谱分析可以看出,建筑物整个结构的运动峰值在11Hz左右,其功率谱密度大约是地面的38倍。
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| 关 键 词： | 爆破震动 地震效应 反应谱 频谱 |
| 文章编号： | 1006-7051(2004)02-0066-04 |
| 修稿时间： | 2004-02-16 |
EFFECT OF BLASTING VIBRATION ON STRUCTURES |
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| LI De-lin,FANG Xiang,QI Shi-fu,LIU-qiang. EFFECT OF BLASTING VIBRATION ON STRUCTURES[J]. Engineering Blasting, 2004, 10(2): 66-69 |
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| Authors: | LI De-lin FANG Xiang QI Shi-fu LIU-qiang |
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| Abstract: | In this paper, general situation on research of blasting vibration effect is introduced, and the influence factors of blasting vibration to structures are elucidated. Using the data from the monitoring of blasting vibration in three bracing blasts, the response spectra of velocity, acceleration and displacement are fitted out. These spectra are analyzed and compared. Effects of the blasting vibration on structures are discussed. At the same time, characteristics of frequency spectra of the structures are expatiated. It is known from frequency-spectrum analysis that the peak of frequency-spectrum curve is located in about 11Hz and the power spectral density of the structure vibration is 38 times that of ground vibration. |
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| Keywords: | Blasting vibration Ground vibration effect Response spectrum Frequency spectrum |
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