Modal Parameters Identification of Civil Engineering Structures Based on the Random Decrement Technique

Qiang Pei; Long Li

doi:10.4028/www.scientific.net/AMM.477-478.732

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 477-478Modal Parameters Identification of Civil...

Modal Parameters Identification of Civil Engineering Structures Based on the Random Decrement Technique

Abstract:

Modal identification technique is an effective measure for building materials health diagnosis, structural optimization design and safety assessment in structural engineering field. The time-domain method can only use the response signals to identify the modal parameters under ambient excitation, which became a wide concern topic in recent years. According to the points above, the theories of random decrement technique, complex exponential method and time-series method are presented. The random decrement technique is combined with the other two methods to become joint algorithms. A numerical simulation model is constructed to verify the feasibility and validity of the two joint algorithms.

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Periodical:

Applied Mechanics and Materials (Volumes 477-478)

Pages:

732-735

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.477-478.732

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Online since:

December 2013

Authors:

Qiang Pei*, Long Li

Keywords:

Civil Engineering Structures, Modal Parameters Identification, Random Decrement Technique, Structural Engineering

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* - Corresponding Author

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