Assessing updated seismic performance of existing structures by stochastic model updating

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

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Externe Organisationen

  • Beijing Institute of Technology
  • The University of Liverpool
  • Tongji University
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OriginalspracheEnglisch
Titel des SammelwerksProceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022
Herausgeber/-innenMichael Beer, Enrico Zio, Kok-Kwang Phoon, Bilal M. Ayyub
Seiten265-270
Seitenumfang6
PublikationsstatusVeröffentlicht - 2024
Veranstaltung8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022 - Hannover, Deutschland
Dauer: 4 Sept. 20227 Sept. 2022

Abstract

Assessing seismic performance of existing structures after strong earthquake events is essential to identify potentially unsafe structures and to schedule repairs or retrofitting. For this purpose, a well calibrated model of the structure of interest should be established based on a very limited number of seismic response data, by considering not only epistemic uncertainty due to lack of knowledge on actual mechanical properties of the structure but also aleatory uncertainty due to the manufacturing process and aging deterioration. In this work, a Bayesian model updating framework is proposed, where uncertainty characteristics of model predictions and observed data, both described in time domain, are quantified by the Bhattacharyya distance-based metric. This framework is employed for calibrating the probability distribution of stiffness parameters of a seismic-isolated bridge pier model by only five observed data reflecting aging condition of the isolators. The calibrated model is then employed to perform a seismic reliability analysis and is revealed that the failure probability of the target structure is increased due to aging of the isolators compared with the health condition, demonstrating that the proposed model updating procedure enables to quantitatively assess the seismic performance of the aging isolated bridges.

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Assessing updated seismic performance of existing structures by stochastic model updating. / Kitahara, M.; Bi, S.; Broggi, M. et al.
Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. Hrsg. / Michael Beer; Enrico Zio; Kok-Kwang Phoon; Bilal M. Ayyub. 2024. S. 265-270.

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Kitahara, M, Bi, S, Broggi, M & Beer, M 2024, Assessing updated seismic performance of existing structures by stochastic model updating. in M Beer, E Zio, K-K Phoon & BM Ayyub (Hrsg.), Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. S. 265-270, 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022, Hannover, Deutschland, 4 Sept. 2022. https://doi.org/10.3850/978-981-18-5184-1_MS-09-086-cd
Kitahara, M., Bi, S., Broggi, M., & Beer, M. (2024). Assessing updated seismic performance of existing structures by stochastic model updating. In M. Beer, E. Zio, K.-K. Phoon, & B. M. Ayyub (Hrsg.), Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022 (S. 265-270) https://doi.org/10.3850/978-981-18-5184-1_MS-09-086-cd
Kitahara M, Bi S, Broggi M, Beer M. Assessing updated seismic performance of existing structures by stochastic model updating. in Beer M, Zio E, Phoon KK, Ayyub BM, Hrsg., Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. 2024. S. 265-270 doi: 10.3850/978-981-18-5184-1_MS-09-086-cd
Kitahara, M. ; Bi, S. ; Broggi, M. et al. / Assessing updated seismic performance of existing structures by stochastic model updating. Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. Hrsg. / Michael Beer ; Enrico Zio ; Kok-Kwang Phoon ; Bilal M. Ayyub. 2024. S. 265-270
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