Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads
The long-term behaviour of concrete beams with corroded reinforcement is a critical aspect that demands thorough comprehension to ensure the serviceability and durability of reinforced concrete structures. This paper aims to investigate the long-term performance of reinforced concrete (RC) beams wit...
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| Format: | Article |
| Language: | English |
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Sciendo
2024-12-01
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| Series: | Civil and Environmental Engineering |
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| Online Access: | https://doi.org/10.2478/cee-2024-0085 |
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| author | Abed Al-Mortadha O. Daud Sultan A. |
| author_facet | Abed Al-Mortadha O. Daud Sultan A. |
| author_sort | Abed Al-Mortadha O. |
| collection | DOAJ |
| description | The long-term behaviour of concrete beams with corroded reinforcement is a critical aspect that demands thorough comprehension to ensure the serviceability and durability of reinforced concrete structures. This paper aims to investigate the long-term performance of reinforced concrete (RC) beams with corroded reinforcement numerically. Two experimental datasets from existing literature were selected to build a nonlinear finite element model. The selected beams were tested under four-points sustained bending load and three bending point flexural test with deferent level of corrosion. A parametric study was then conducted taking into account concrete compressive strength, reinforcement yield strength, ambient temperature, relative humidity and sustained load level to get a better understanding on the factors that effecting the long-term behaviour of concrete beams with corroded reinforcement. Results demonstrated that, Diana FEA has an excellent ability to predicating the long-term behaviour of RC beams with corroded reinforcement. The analysis of the parametric study revealed that increasing relative humidity from 70% to 90% resulted in a 45% to 53% reduction in developed deflections. Whereas once the temperature rose from 20°C to 40°C the developed deflection increased from 13.9% to 17.2%. This outcome demonstrating the significant impact of environmental factors on the long-term behaviour of corroded reinforced concrete beams. Finaly, once the yiled stregth of the steel reinforcement increased from 380 Mpa to 550 Mpa, the developed deflection rate increased from 46% to 54%. |
| format | Article |
| id | doaj-art-cc2f28d219aa4691a5a64f26ce10ecef |
| institution | Kabale University |
| issn | 2199-6512 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Civil and Environmental Engineering |
| spelling | doaj-art-cc2f28d219aa4691a5a64f26ce10ecef2025-02-02T15:47:54ZengSciendoCivil and Environmental Engineering2199-65122024-12-012021162117310.2478/cee-2024-0085Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained LoadsAbed Al-Mortadha O.0Daud Sultan A.1M.Sc. Student, Civil Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, IraqAssist. Prof., Dr., Civil Engineering Department, College of Engineering, Al-Nahrain University, BaghdadIraqThe long-term behaviour of concrete beams with corroded reinforcement is a critical aspect that demands thorough comprehension to ensure the serviceability and durability of reinforced concrete structures. This paper aims to investigate the long-term performance of reinforced concrete (RC) beams with corroded reinforcement numerically. Two experimental datasets from existing literature were selected to build a nonlinear finite element model. The selected beams were tested under four-points sustained bending load and three bending point flexural test with deferent level of corrosion. A parametric study was then conducted taking into account concrete compressive strength, reinforcement yield strength, ambient temperature, relative humidity and sustained load level to get a better understanding on the factors that effecting the long-term behaviour of concrete beams with corroded reinforcement. Results demonstrated that, Diana FEA has an excellent ability to predicating the long-term behaviour of RC beams with corroded reinforcement. The analysis of the parametric study revealed that increasing relative humidity from 70% to 90% resulted in a 45% to 53% reduction in developed deflections. Whereas once the temperature rose from 20°C to 40°C the developed deflection increased from 13.9% to 17.2%. This outcome demonstrating the significant impact of environmental factors on the long-term behaviour of corroded reinforced concrete beams. Finaly, once the yiled stregth of the steel reinforcement increased from 380 Mpa to 550 Mpa, the developed deflection rate increased from 46% to 54%.https://doi.org/10.2478/cee-2024-0085long-term deflectioncorrosionnon-linear analysiscreepshrinkage |
| spellingShingle | Abed Al-Mortadha O. Daud Sultan A. Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads Civil and Environmental Engineering long-term deflection corrosion non-linear analysis creep shrinkage |
| title | Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads |
| title_full | Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads |
| title_fullStr | Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads |
| title_full_unstemmed | Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads |
| title_short | Flexure Behaviour of Corroded Reinforcement Concrete Beams Under Sustained Loads |
| title_sort | flexure behaviour of corroded reinforcement concrete beams under sustained loads |
| topic | long-term deflection corrosion non-linear analysis creep shrinkage |
| url | https://doi.org/10.2478/cee-2024-0085 |
| work_keys_str_mv | AT abedalmortadhao flexurebehaviourofcorrodedreinforcementconcretebeamsundersustainedloads AT daudsultana flexurebehaviourofcorrodedreinforcementconcretebeamsundersustainedloads |