Damage Detection of Steel Domes Subjected to Earthquakes by Using Wavelet Transform

Abstract:

Article Preview

The degradation of a steel dome due to strong earthquake may lead to a sudden loss of structural stiffness in a structure and cause a discontinuity in acceleration response time histories recorded in the vicinity of damage location at damage time instant. A damage detection approach based on discrete wavelet transform is developed and implemented in this paper to detect the damage time instant and location of a steel dome due to sudden seismic damage. To examine the feasibility of the wavelet-based detection approach, parameter studies are carried out to investigate the detection quality for different noise intensities. The time instant and location of sudden damage event are detected through the distribution of discrete wavelet coefficients in the time domain and spatial distribution along the structural span.

Info:

Periodical:

Advanced Materials Research (Volumes 150-151)

Edited by:

Jinglong Bu, Zhengyi Jiang and Sihai Jiao

Pages:

1580-1583

DOI:

10.4028/www.scientific.net/AMR.150-151.1580

Citation:

J. Zheng et al., "Damage Detection of Steel Domes Subjected to Earthquakes by Using Wavelet Transform", Advanced Materials Research, Vols. 150-151, pp. 1580-1583, 2011

Online since:

October 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.