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Smart Structures and Systems Volume 10, Number 4, October - November 2012 , pages 459-470 DOI: https://doi.org/10.12989/sss.2012.10.4_5.459 |
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Finite element model updating of Canton Tower using regularization technique |
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Truong Thanh Chung, Soojin Cho, Chung Bang Yun and Hoon Sohn
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| Abstract | ||
| This paper summarizes a study for the modal analysis and model updating conducted using the monitoring data obtained from the Canton Tower of 610 m tall, which was established as an international benchmark problem by the Hong Kong Polytechnic University. Modal properties of the tower were successfully identified using frequency domain decomposition and stochastic subspace identification methods. Finite element model updating using the measurement data was further performed to reduce the modal property differences between the measurements and those of the finite element model. Over-fitting during the model updating was avoided by using an optimization scheme with a regularization term. | ||
| Key Words | ||
| Canton Tower; modal identification; finite element model updating; regularization | ||
| Address | ||
| Truong Thanh Chung and Hoon Sohn : Department of Civil and Environmental Engineering, KAIST, Korea Soojin Cho: Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, USA Chung Bang Yun : School of Urban and Environmental Engineering, UNIST, Korea | ||