ADAPTATION MANAGEMENT OF COASTAL BRIDGES SUBJECTED TO EXTREME WAVES CONSIDERING CLIMATE CHANGE

Deming Zhu, Yaohan Li, You Dong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Coastal bridges are crucial traffic components and vital to the social economy. However, they are susceptible to enlarging risks from hurricane-induced surges and waves due to the increasing temperature and humidity, rising sea-level, and amplification of hazard intensities. An understanding of how to mitigate the potential risks of coastal bridges from natural hazards is a critical step toward reliable transportation systems; while relative adaptation measures were seldom discussed. This study conducts a comprehensive analysis of the effects of different adaptation measures to help the bridge resist hurricane-induced risks under climate change scenarios. The long-term loss assessments associated with different retrofit measures are evaluated by considering deep uncertainty in future climate change. Different retrofit measures are investigated and compared, including inserting air venting holes, enhancing connection strength, and elevating bridge structures. Specifically, a Computational Fluid Dynamics (CFD) model is established to compute wave-induced forces on the coastal bridge. Vulnerability curves are derived based on the deck unseating failure mode, and long-term losses are assessed considering the stochastic occurrence of hurricanes and climate change scenarios. The effects of retrofit adaptations on reducing long-term losses are examined and compared according to the proposed framework. Such a study results in systematic evaluations of different adaptation measures, which could help optimal and robust designs of coastal bridges and modifications of existing ones.

Original languageEnglish
Title of host publicationProceedings of the 31st European Safety and Reliability Conference, ESREL 2021
EditorsBruno Castanier, Marko Cepin, David Bigaud, Christophe Berenguer
PublisherResearch Publishing, Singapore
Pages1084
Number of pages1
ISBN (Print)9789811820168
DOIs
Publication statusPublished - Sept 2021
Event31st European Safety and Reliability Conference, ESREL 2021 - Angers, France
Duration: 19 Sept 202123 Sept 2021

Publication series

NameProceedings of the 31st European Safety and Reliability Conference, ESREL 2021

Conference

Conference31st European Safety and Reliability Conference, ESREL 2021
Country/TerritoryFrance
CityAngers
Period19/09/2123/09/21

Keywords

  • Adaptation measure
  • CFD model
  • Climate change
  • Coastal bridge
  • Hurricane
  • Long-term loss

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

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