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Retrofitting of Damaged Structure Using Vibration Monitoring Technique

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Experimental Vibration Analysis for Civil Structures (EVACES 2017)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 5))

Abstract

Health monitoring of structures has become a popular research subject in recent years. The technique is mostly utilized for system identification through dynamic testing. System identification is required for a number of reasons like continuous monitoring of the state of the existing structures, evaluation of damages in the structure and assessment of residual strength. In this study, the evaluation procedure of the damages in the existing structure through dynamic testing is described and a suitable retrofitting strategy is proposed based on the experimental results. For this purpose, the results of the dynamic test of a five story building model representing properties on scaled prototype structure are collected to obtain its fundamental mode and fundamental frequencies of vibration. With the help of the above experimental data, a retrofitting strategy is developed to rehabilitate the structure to a desired lateral strength. The methodology consists of following steps: (i) recreating the same building model in computer to define a target strength and (ii) a static procedure for increasing the lateral stiffness of the damaged building is described from the measured mode shape and frequency of the damaged structure and those of the recreated structure. For verification of the accuracy of the retrofitting strategy, free vibration test of the retrofitted building is also carried out. The results of the study show that it is possible to design additional lateral resisting elements to increase the lateral strength of a damaged structure to target strength from the free vibration test results of the damaged structure.

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Authors and Affiliations

  1. Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, India

    Vishisht Bhaiya, Shiv Dayal Bharti & Mahendra Kumar Shrimali

  2. National Centre for Disaster Mitgation and Management, Malaviya National Institute of Technology, Jaipur, India

    Tushar Kanti Datta

Authors
  1. Vishisht Bhaiya
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  2. Shiv Dayal Bharti
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  3. Mahendra Kumar Shrimali
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  4. Tushar Kanti Datta
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Corresponding author

Correspondence to Vishisht Bhaiya .

Editor information

Editors and Affiliations

  1. Department of Structural Engineering, University of California at San Diego, La Jolla, California, USA

    Joel P. Conte

  2. Faculty of Engineering and Applied Sciences, Universidad de los Andes, Las Condes, RM - Santiago, Chile

    Rodrigo Astroza

  3. Department of Structural Engineering, University of California at San Diego, La Jolla, California, USA

    Gianmario Benzoni

  4. Swiss Federal Laboratories for Materials Science and Technology (EMPA), Zürich, Switzerland

    Glauco Feltrin

  5. Department of Structural Engineering, University of California at San Diego, La Jolla, California, USA

    Kenneth J. Loh

  6. Department of Civil and Environmental Engineering, Tufts University, Medford, Massachusetts, USA

    Babak Moaveni

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Bhaiya, V., Bharti, S.D., Shrimali, M.K., Datta, T.K. (2018). Retrofitting of Damaged Structure Using Vibration Monitoring Technique. In: Conte, J., Astroza, R., Benzoni, G., Feltrin, G., Loh, K., Moaveni, B. (eds) Experimental Vibration Analysis for Civil Structures. EVACES 2017. Lecture Notes in Civil Engineering , vol 5. Springer, Cham. https://doi.org/10.1007/978-3-319-67443-8_12

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  • DOI: https://doi.org/10.1007/978-3-319-67443-8_12

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-67442-1

  • Online ISBN: 978-3-319-67443-8

  • eBook Packages: EngineeringEngineering (R0)

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