Experimental testing and finite element modeling on continuous concrete beams reinforced with fibre reinforced polymer bars and stirrups
Bibliographic record
Abstract
Continuous concrete beams are common elements in structures such as parking garages and overpasses, which might be exposed to extreme weather. Using the non-corrodible fibre reinforced polymer (FRP) bars is a viable alternative to avoid steel corrosion problems. Due to the linear-elastic behaviour of FRP materials, the possibility of moment redistribution in FRP-reinforced beams is questionable. In this paper, the experimental results of ten full-scale continuous concrete beams are summarized followed by a finite element parametric study using ANSYS software. Steel, glass fibre reinforced polymer, and carbon fibre reinforced polymer bars were used in different combinations as longitudinal and transverse reinforcement. The main investigated parameters were the ratio and type of longitudinal and transverse reinforcement. Results showed that moment redistribution in such beams is possible if the reinforcement configuration is chosen properly. The developed finite element model predicted the response of tested beams with a reasonable degree of accuracy and was used to expand the range of investigated parameters.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".