Analysis of Strong Ground Motion Caused by Blasting Demolition of a 22-Story RC Building

Yu Shi Wang; Xiao Jun Li

doi:10.4028/www.scientific.net/AMM.226-228.1010

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 226-228Analysis of Strong Ground Motion Caused by...

Analysis of Strong Ground Motion Caused by Blasting Demolition of a 22-Story RC Building

Abstract:

The influence of vibration on surrounding structures is one of the most important factors considered during blasting demolition of high-rise buildings in metropolitan regions. In the controlled blasting demolition of a 22-story RC building in Kunming, several accelerograms on ground surface were observed. Based on analyses of vertical peak ground velocity which is normally used in blasting vibration evaluation, and horizontal spectral acceleration which is frequently used in earthquake engineering, the ground motion caused by building collapse was evaluated. The results indicated that the adoptive vibration decreasing measures had a good effect, and the slight damages of two nearby buildings could not be due to abnormal strong ground motion caused by collapse.

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Periodical:

Applied Mechanics and Materials (Volumes 226-228)

Pages:

1010-1014

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.226-228.1010

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Online since:

November 2012

Authors:

Yu Shi Wang, Xiao Jun Li

Keywords:

Backlash Vibration, Blasting Demolition, Peak Ground Velocity, Spectral Acceleration, Strong Ground Motion, Touchdown Vibration

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