Journal
ENGINEERING STRUCTURES
Volume 237, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2021.112212
Keywords
Bridge network analysis; Network fragility; Bridge fragility; Retrofitting strategy; Earthquakes
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2019R1C1C1007780]
- National Research Foundation of Korea [2019R1C1C1007780] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study proposes a novel framework for computing transportation network fragilities following earthquakes to assess the likelihood of functionality of bridge routes, assisting emergency responders and bridge owners in evaluating availability post-seismic events.
As significant uncertainties are associated with the factors governing the operational characteristics of bridges following earthquakes, it is important to compute the reliability of transportation networks as a function of bridge fragility. A novel framework for the computation of transportation network fragilities following earthquakes is proposed herein, and the effectiveness of the proposed methodology is demonstrated using a hypothetical bridge network in California, USA. The proposed methodology affords the likelihood of functionality of bridge routes as a function of ground motion intensity. The network fragilities identified by this methodology can aid emergency responders and bridge owners in assessing the availability of possible routes after a seismic event based on the likelihoods of functionality of the routes.
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