Reliability-informed probabilistic analysis of corroded RC structure

Hongyuan Guo, You Dong

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

Abstract

Under the marine atmospheric environment, reinforced concrete (RC) structures are subjected to chloride-induced corrosion, which could lead to financial loss and bring a huge challenge to the life-cycle design and maintenance. In this paper, a spatial deterioration model is developed for the corroded RC beam under marine environment by considering the scenarios of changing climate and the random filed of physical parameters (e.g., chloride transport coefficient and corrosion current density). Karhunen-Loève (KL) expansion is adopted to conduct simulation of the random field. An illustrative example of flexural RC beam under marine atmospheric environment is assessed to present the output and verify the feasibility of the developed method. Monte Carlo simulation (MCS) is employed to compute the probability distribution of ultimate bending capacity. Meanwhile, a sensitivity analysis is carried out to assess the influences of different factors (e.g., compressive strength of concrete and yield strength of steel bar) on ultimate bending capacity. Also, reliability analysis is conducted to study the influences of spatial effects on time-dependent failure probability.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
EditorsHiroshi Yokota, Dan M. Frangopol
PublisherCRC Press Balkema
Pages1862-1867
Number of pages6
ISBN (Electronic)9780367232788
DOIs
Publication statusPublished - 2021
Event10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020 - Sapporo, Japan
Duration: 11 Apr 202115 Apr 2021

Publication series

NameBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020

Conference

Conference10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
Country/TerritoryJapan
CitySapporo
Period11/04/2115/04/21

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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