爆破振动荷载作用下3~4层房屋结构响应测试研究

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (3) : 48-51.

论文

爆破振动荷载作用下3~4层房屋结构响应测试研究

林键;林从谋;林丽群

作者信息 +

Research on characteristics of The structure’s response under the dynamic blasting load

Lin Jian;Lin Congmou;Lin Liqun

Author information +

文章历史 +

摘要

目前，对爆破振动荷载作用下房屋结构的各层响应特性的研究较少。通过现场实测爆破地震波及其引起的3～4层房屋各层结构的振动响应,文中应用小波分析等工具对数据进行了分析处理，获得了爆破振动荷载作用下房屋各层结构的响应特性规律：随楼层增加，质点振动速度峰值放大系数为0.5～1.33；持续时间减小0.25%～28%；各楼层振动能量大部分集中在6～25Hz频带上。研究成果可为房屋结构破坏的综合判据及抗震设计提供依据。

Abstract

At present, the research on the characteristics of housing structure of all levels to respond under the dynamic blasting load is less. In the paper, measured through on-site blasting and seismic waves caused by 3 or 4 layers of housing at all levels of the vibration response of structures, processed the data by the wavelet analysis tools, getted the response characteristics on each floor structure housing under the dynamic blasting load: with the floor increase in peak ,particle velocity magnification factor of 0.5~1.33;duration decreased 25%~28%;the floor most of the vibration energy concentrated in the 6~25Hz band. Housing research will provide a basis for a comprehensive criterion of structural damage and for seismic design of structural.

导出引用

林键;林从谋;林丽群. 爆破振动荷载作用下3~4层房屋结构响应测试研究[J]. 振动与冲击, 2010, 29(3): 48-51

Lin Jian;Lin Congmou;Lin Liqun. Research on characteristics of The structure’s response under the dynamic blasting load[J]. Journal of Vibration and Shock, 2010, 29(3): 48-51