Structural Damage Identification Based on Hilbert-Huang Transform and Verification via Shaking Table Model Test

Jian Ping Han; Jiong Qian; Pei Juan Zheng

doi:10.4028/www.scientific.net/AMR.255-260.4237

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Structural Damage Identification Based on...

Structural Damage Identification Based on Hilbert-Huang Transform and Verification via Shaking Table Model Test

Abstract:

Damage occurs in components and joints while the structure is affected by strong ground motions. Dynamic characteristics of the structure will change with the deterioration of strength and stiffness. Analyzing and processing the vibration signals is one of the mainstream ways for structural health monitoring and damage identification. In this paper, Hilbert-Huang transform is adopted to identify structural damage. Time-varying instantaneous frequency and instantaneous energy is used to identify the damage evolution of the structure. And relative amplitude of Hilbert marginal spectrum is used to identify the damage location of the structure. Finally, the acceleration records at gauge points from the shaking table test of a 12-storey reinforced concrete frame model are processed. Evolution and location of the model damage are identified. Identification results agree well with experimental observation. This indicates that the proposed approach is capable to identify damage of the structure.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

4237-4241

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.4237

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Online since:

May 2011

Authors:

Jian Ping Han, Jiong Qian, Pei Juan Zheng

Keywords:

Damage Identification, Hilbert Marginal Spectrum, Hilbert-Huang Transform (HHT), Instantaneous Energy, Instantaneous Frequency, Shaking Table Test

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