Probabilistic Joint Importance-Based Retrofit Strategy for Seismic Risk Mitigation of Transportation Networks

Seismic mitigation of transportation systems has become a worldwide challenge, because identifying an optimal retrofit strategy entails significant computational efforts, especially for large-scale networks with numerous candidate strategies and time-consuming risk assessment processes. An efficient...

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Bibliographic Details
Published inApplied sciences Vol. 12; no. 18; p. 9307
Main Authors Liu, Kezhi, Zhai, Changhai, Meng, Xianghai
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2022
Subjects
Bridges
Component reliability
Computer applications
Decision making
Earthquake damage
Earthquakes
Environmental risk
Methods
Mitigation
Monte Carlo simulation
network functionality
Optimization
Retrofitting
Risk assessment
risk mitigation
Risk reduction
Seismic engineering
Seismic hazard
seismic risk
Seismic stability
Stochasticity
Strategy
transportation network
Transportation networks
Transportation systems
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Summary:Seismic mitigation of transportation systems has become a worldwide challenge, because identifying an optimal retrofit strategy entails significant computational efforts, especially for large-scale networks with numerous candidate strategies and time-consuming risk assessment processes. An efficient joint importance-based methodology is proposed in this paper to address the challenge. The proposed method selects the component set (e.g., bridges) that is most decisive to the network seismic risk based on only one set of stochastic samples but takes into account the uncertainty of multiple damage states and the interactive effect between different components. The reliability and stability of the proposed method are verified on a hypothetical transportation network under different conditions.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12189307