Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method
Steel corrosion of bars in concrete structures is a complex process which leads to the reduction of the cross-section bars and decreasing the resistance of the concrete and steel materials. In this study, reliability analysis of a reinforced concrete beam with corrosion defects under the distributed...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Tehran Press
2015-12-01
|
| Series: | Civil Engineering Infrastructures Journal |
| Subjects: | |
| Online Access: | https://ceij.ut.ac.ir/article_55707_91562e3845e7d6c413fe8a5a0773c0f6.pdf |
| _version_ | 1811343966696636416 |
|---|---|
| author | Arash Mohammadi Farsani Behrooz Keshtegar |
| author_facet | Arash Mohammadi Farsani Behrooz Keshtegar |
| author_sort | Arash Mohammadi Farsani |
| collection | DOAJ |
| description | Steel corrosion of bars in concrete structures is a complex process which leads to the reduction of the cross-section bars and decreasing the resistance of the concrete and steel materials. In this study, reliability analysis of a reinforced concrete beam with corrosion defects under the distributed load was investigated using the enhanced Hasofer-Lind and Rackwitz-Fiessler (EHL-RF) method based on relaxed approach. Robustness of the EHL-RF algorithm was compared with the HL-RF using a complicated example. It was seen that the EHL-RF algorithm is more robust than the HL-RF method. Finally, the effects of corrosion time were investigated using the EHL-RF algorithm for a reinforced concrete beam based on flexural strength in the pitting and general corrosion. The model uncertainties were considered in the resistance and load terms of flexural strength limit state function. The results illustrated that increasing the corrosion time-period leads to increase in the failure probability of the corroded concrete beam. |
| first_indexed | 2024-04-13T19:39:23Z |
| format | Article |
| id | doaj.art-e90e96ce04c147089440b880d4a988ed |
| institution | Directory Open Access Journal |
| issn | 2322-2093 2423-6691 |
| language | English |
| last_indexed | 2024-04-13T19:39:23Z |
| publishDate | 2015-12-01 |
| publisher | University of Tehran Press |
| record_format | Article |
| series | Civil Engineering Infrastructures Journal |
| spelling | doaj.art-e90e96ce04c147089440b880d4a988ed2022-12-22T02:32:56ZengUniversity of Tehran PressCivil Engineering Infrastructures Journal2322-20932423-66912015-12-0148229730410.7508/ceij.2015.02.00655707Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF MethodArash Mohammadi Farsani0Behrooz Keshtegar1Lecture, Department of Civil Engineering, Farsan Branch, Islamic Azad University, Farsan, IranAssistant Professor, Department of Civil Engineering, University of Zabol, P.O.Box: 9861335-856, Zabol, Iran.Steel corrosion of bars in concrete structures is a complex process which leads to the reduction of the cross-section bars and decreasing the resistance of the concrete and steel materials. In this study, reliability analysis of a reinforced concrete beam with corrosion defects under the distributed load was investigated using the enhanced Hasofer-Lind and Rackwitz-Fiessler (EHL-RF) method based on relaxed approach. Robustness of the EHL-RF algorithm was compared with the HL-RF using a complicated example. It was seen that the EHL-RF algorithm is more robust than the HL-RF method. Finally, the effects of corrosion time were investigated using the EHL-RF algorithm for a reinforced concrete beam based on flexural strength in the pitting and general corrosion. The model uncertainties were considered in the resistance and load terms of flexural strength limit state function. The results illustrated that increasing the corrosion time-period leads to increase in the failure probability of the corroded concrete beam.https://ceij.ut.ac.ir/article_55707_91562e3845e7d6c413fe8a5a0773c0f6.pdfcorrosionenhanced hl-rf methodfailure probabilityreliability analysisreinforced concrete |
| spellingShingle | Arash Mohammadi Farsani Behrooz Keshtegar Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method Civil Engineering Infrastructures Journal corrosion enhanced hl-rf method failure probability reliability analysis reinforced concrete |
| title | Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method |
| title_full | Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method |
| title_fullStr | Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method |
| title_full_unstemmed | Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method |
| title_short | Reliability Analysis of Corroded Reinforced Concrete Beams Using Enhanced HL-RF Method |
| title_sort | reliability analysis of corroded reinforced concrete beams using enhanced hl rf method |
| topic | corrosion enhanced hl-rf method failure probability reliability analysis reinforced concrete |
| url | https://ceij.ut.ac.ir/article_55707_91562e3845e7d6c413fe8a5a0773c0f6.pdf |
| work_keys_str_mv | AT arashmohammadifarsani reliabilityanalysisofcorrodedreinforcedconcretebeamsusingenhancedhlrfmethod AT behroozkeshtegar reliabilityanalysisofcorrodedreinforcedconcretebeamsusingenhancedhlrfmethod |