Response characteristics of structures to the different energy components of blasting vibration

LI Hong-tao;SHU Da-qiang;LU Wen-bo;ZHU Chuan-yun

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (2) : 154-158.

PDF(1687 KB)
PDF(1687 KB)
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (2) : 154-158.
论文

Response characteristics of structures to the different energy components of blasting vibration

  • LI Hong-tao1;SHU Da-qiang2;LU Wen-bo2;ZHU Chuan-yun2
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Abstract

The effect of blast-induced seismic on structures can be considered as a transferred and transformed process of the energy, which relates to the dynamic response of structures. Based on structure dynamic theory, the response characteristics of structures to the different energy components of blasting vibration are studied with a typical example project. The result shows that the amplification effect of the structures to energy content with different frequency is obviously selective. Further discussion about the safety criterion considering the effect of frequency shows that when the safety criterion for blasting vibration is proposed, it is necessary to give consideration to both characteristics of blast-induced seismic and dynamic response characteristics of structures, and the energy component of blasting vibration which has the same frequency as the structure must be paid more attention to.

Key words

blasting vibration / structure / energy / response / frequency

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LI Hong-tao;SHU Da-qiang;LU Wen-bo;ZHU Chuan-yun . Response characteristics of structures to the different energy components of blasting vibration [J]. Journal of Vibration and Shock, 2010, 29(2): 154-158
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