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Topics in Dynamics of Civil Structures, Volume 4 pp 231–241Cite as

Application of Efficient Model Correction for Damage Assessment Using Limited Measurements

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Abstract

The purpose of this research is to employ the model updating technique to conduct the structural damage detection with insufficient measurements. First, the stochastic subspace identification technique is used to identify the system mode shapes from the limited measurement, then the mode shape expansion (MSE) technique was introduced to reconstruct the mode shapes in all degree of freedoms. Second, in cooperated with the expanded mode shapes the damage detection technique, called Efficient Model Correction Method (EMCM), is used to identify the damage location as well the damage severity. To investigate the effectiveness of the proposed MSE technique and model updating approaches, numerical studies with three types of sensor distributions and five damage scenarios were investigated. The results indicated that when the weighting coefficient of the proposed MSE technique is properly selected, the ability of reconstructing the mode shape is appreciated. For damage detection, data collected from the shaking table test of a six-story steel frame structure was used. With limited measurements the MSE technique together with the applicability of the EMCM, damage detection of the frame structure is conducted. The ability EMCM for damage detection is also discussed. The study concluded that damage detection through mode shape expansion is possible if the expanded mode shapes are consistent with the exact mode shapes. The Efficient Model Correction Method can also provide good results of structural damage detection.

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Acknowledgements

Support from National Science Council of the Republic of China, Taiwan (under Contract No. NSC 99-2221-E-002-088-MY3) and the Research Program of Excellency of National Taiwan University (under Contract No. 99R80805) on the development of the theory and experiments are acknowledged.

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Authors and Affiliations

  1. Department of Civil Engineering, National Taiwan University, No.1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan

    Yi-Cheng Wu & Chin-Hsiung Loh

Authors
  1. Yi-Cheng Wu
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  2. Chin-Hsiung Loh
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Corresponding author

Correspondence to Chin-Hsiung Loh .

Editor information

Editors and Affiliations

  1. , Engineering Department, University of Central Florida, Central Florida Blvd. 4000, Orlando, 32816-2450, Florida, USA

    Fikret Necati Catbas

  2. , Department of Civil and Envt. Eng., Lehigh University, ATLSS Drive, Imbt Labs 117, Bethlehem, 18015, Pennsylvania, USA

    Shamim Pakzad

  3. , Department of Civil and Structural Eng., University of Sheffield, Mappin Street, Sheffield, S1 3JD, United Kingdom

    Vitomir Racic

  4. , Department of Civil and Structural Eng., University of Sheffield, Mappin Street, Sheffield, S1 3JD, United Kingdom

    Aleksandar Pavic

  5. , Department of Civil and Structural Eng., University of Sheffield, Mappin Street, Sheffield, S1 3JD, United Kingdom

    Paul Reynolds

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© 2013 The Society for Experimental Mechanics, Inc.

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Wu, YC., Loh, CH. (2013). Application of Efficient Model Correction for Damage Assessment Using Limited Measurements. In: Catbas, F., Pakzad, S., Racic, V., Pavic, A., Reynolds, P. (eds) Topics in Dynamics of Civil Structures, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6555-3_26

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  • DOI: https://doi.org/10.1007/978-1-4614-6555-3_26

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-6554-6

  • Online ISBN: 978-1-4614-6555-3

  • eBook Packages: EngineeringEngineering (R0)

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