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Toward effective structural identification of medium-rise building structures

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Abstract

Structural Identification (St-Id) is the process of constructing and calibrating a physics-based model based on the measured static and/or dynamic response of the structure. Over the last two decades, although the St-Id methods have become increasingly popular amongst civil–structural engineering communities, most complete and successful applications are often found with flexible structures such as long-span bridges and towers. Very few comprehensive studies were reported on building structures, especially those with medium-rise characteristics which are often associated with complicated analytical modelling and different degrees of parameter uncertainties. To address this need, this paper presents an in-depth study on St-Id of a benchmark medium-rise building firstly demonstrating the importance of developing appropriate initial analytical models that can be used for the automated model calibration techniques. Then, a novel parametric study-based sensitivity analysis approach is introduced to identify tuning parameters as well as their appropriate ranges to maximise the correlation of the calibrated model whilst preserving the physical relevance of the calibrated model. Modal data of the first few modes measured under ambient vibration conditions are used in this study. Further application of the St-Id process developed herein for structural health monitoring (SHM) of buildings is also discussed.

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Acknowledgements

The data used in this research are from the PhD research of the second author between 2014 and 2017 at QUT. The study was funded by Queensland University of Technology PhD Scholarships and in part by the Australian Research Council Discovery Project No. DP160101764.

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Authors and Affiliations

  1. School of Civil Engineering and Built Environment, Queensland University of Technology, Brisbane, Australia

    A. Nguyen, K. A. T. L. Kodikara, T. H. T. Chan & D. P. Thambiratnam

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  1. A. Nguyen
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  2. K. A. T. L. Kodikara
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  3. T. H. T. Chan
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  4. D. P. Thambiratnam
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Correspondence to A. Nguyen.

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Nguyen, A., Kodikara, K.A.T.L., Chan, T.H.T. et al. Toward effective structural identification of medium-rise building structures. J Civil Struct Health Monit 8, 63–75 (2018). https://doi.org/10.1007/s13349-017-0259-y

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  • DOI: https://doi.org/10.1007/s13349-017-0259-y

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