Database evaluation and reliability calibration for flexural strength of hybrid FRP/steel-RC Beams
Article
Tarawneh, Ahmad, Alajarmeh, Omar, Alawadi, Roaa, Amirah, Hadeel and Alramadeen, Razan. 2024. "Database evaluation and reliability calibration for flexural strength of hybrid FRP/steel-RC Beams." Composite Structures. 329. https://doi.org/10.1016/j.compstruct.2023.117758
Article Title | Database evaluation and reliability calibration for flexural strength of hybrid FRP/steel-RC Beams |
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ERA Journal ID | 3731 |
Article Category | Article |
Authors | Tarawneh, Ahmad, Alajarmeh, Omar, Alawadi, Roaa, Amirah, Hadeel and Alramadeen, Razan |
Journal Title | Composite Structures |
Journal Citation | 329 |
Article Number | 117758 |
Number of Pages | 11 |
Year | 2024 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0263-8223 |
1879-1085 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compstruct.2023.117758 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0263822323011042 |
Abstract | Concrete beams reinforced with hybrid fiber-reinforced polymer (FRP) and steel bars combine the advantages of both FRP and steel. The corrosion resistance and service-life are improved by placing the FRP bars, while steel bars will provide better serviceability through the higher elastic modulus and better ductility through yielding. However, there are no design provisions for hybrid FRP/steel-RC members, and the design models were evaluated over limited experimental data. This study presents a statistical and reliability evaluation for designing hybrid FRP/steel-RC beams under flexure over a worldwide experimental database. The database comprises 136 hybrid FRP/steel-RC beams tested under flexure. Theoretical balanced failure states have shown the ability to correctly predict the failure mode of the specimens. Two specimens were classified inaccurately in terms of failure mode, which is attributed to the variability in the materials’ properties. Statistical evaluation for moment predictions for specimens with failure mode 2 (steel yield-concrete crushing) showed a mean, standard deviation, and coefficient of variation of 1.143, 0.169, and 14.7 %, respectively. Additionally, a reliability analysis is conducted to calibrate and recommend the strength reduction factor for the ACI 440 provisions. Targeting a reliability index of 3.5, a strength reduction factor of ϕ = 0.80 is selected as the appropriate. |
Keywords | Failure mode; Hybrid reinforcement ; Fiber-Reinforced Polymer (FRP) reinforcement ; Flexural capacity ; Reliability analysis |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hashemite University, Jordan |
Centre for Future Materials | |
Applied Science Private University, Jordan |
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