FLEXURAL BEHAVIOUR OF HOLLOWCORE SLABS STRENGTHENED WITH PRESTRESSED CARBON FIBER REINFORCED POLYMER PLATES
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Bibliographic record
Abstract
Strengthening structures with externally prestressed carbon fiber reinforcement polymer (CFRP) plates has been proven to be an effective method to improve the serviceability and the ultimate performance of the concrete structures. However, it has not been widely used in the field due to the challenges associated with the prestressing and anchoring techniques. This paper presents a part of a comprehensive experimental program aiming to investigate the flexural behaviour of full-scale prestressed hollow-core slabs (PHCS) strengthened with externally bonded and unbonded prestressed CFRP plates using a novel field-applicable wedge anchorage system. The tested slabs were strengthened with bonded and unbonded CFRP plates using various prestressing levels. The ultimate and cracking loads were increased by as much as 31.5% and 25%, respectively, for the strengthened slabs compared to the control slab. In addition, a significant enhancement of 95% in the ductility was observed for the slab strengthened with bonded and anchored plates.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.037 | 0.030 |
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 it