Vibrating Response of the Residential Structure to Blast Based on HHT

ZENG Yi-xin BAI Chun-hua WANG Zhong-qi

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (15) : 71-75.

PDF(2350 KB)
PDF(2350 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (15) : 71-75.
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Vibrating Response of the Residential Structure to Blast Based on HHT

  • ZENG Yi-xin BAI Chun-hua WANG Zhong-qi
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Abstract

To test the characteristics of structural response to the blast vibration of the ground, detonative experiments were carried out on a newly constructed residential structure. By using Hilbert-Huang Transform (HHT), the spectral characteristics of vibrations on the structure are analyzed comparing to that on the ground surface adjacent to the foundation. It turns out that: vibrating amplitude could be amplified on the structure to the ground motion in the frequency bond close to the natural frequency of the structure; Amplification ratio relates to the distance between the blast hole and the structure as well as the monitoring height; while in a same height, vibration in the brick-cement wall decayed obviously when it is reinforced by carbon fiber board, vibrating amplitude in a wall covered with carbon fiber plate is lower than 1/2 times of that in a common wall.


Key words

Residential Structure / Vibration Response / Amplified Effect / Vibrating Attenuation

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ZENG Yi-xin BAI Chun-hua WANG Zhong-qi. Vibrating Response of the Residential Structure to Blast Based on HHT[J]. Journal of Vibration and Shock, 2014, 33(15): 71-75
PDF(2350 KB)

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