"Typhoon Damage Assessment of Power Transportation Networks using Bias-" by Ya'nan Tang, Jian Yang et al.
 

Typhoon Damage Assessment of Power Transportation Networks using Bias-corrected Typhoon Wind Field with Dense Wind Measurements

Abstract

Effective preparedness and prompt restoration efforts are crucial to minimize losses in typhoon-prone areas. Achieving this necessitates reliable estimates of structural damage before typhoons make landfall. This paper develops a damage assessment framework for estimating structural damage in power transportation networks. Within this framework, a typhoon wind field model, a reliability-based fragility model, and a procedure to estimate the damaged number of towers or poles are integrated. A key feature of the framework is a proposed scale factor to correct the inherent bias in the wind field model, with its stochastic nature characterized by probabilistic models based on dense typhoon wind observations. The proposed scale factor is then incorporated into the fragility model to address the variability of the fragility model. The developed framework is applied to assess the damage to concrete poles in the 10 kV distribution networks of Zhanjiang, Guangdong Province, China during three typhoon events. For these events, the predicted number of failed poles has a relative mean error of less than 20% compared to actual values, highlighting the effectiveness of the scale factor in improving wind field model accuracy. The variability in the predicted number of failures is also quantified.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

National Key Research and Development Program of China, Grant 2023YFC3008503

Keywords and Phrases

Damage assessment; Fragility analysis; Power transportation network; Typhoon wind hazard

International Standard Serial Number (ISSN)

0167-6105

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Elsevier, All rights reserved.

Publication Date

01 Jan 2025

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