Fire endurance experiments on FRP-strengthened reinforced concrete slabs and beams-slab assemblies
Bibliographic record
Abstract
Fire resistance experiments were conducted at the National Research Council of Canada (NRC) in partnership with Intelligent Sensing for Innovative Structures (ISIS) Canada and Fyfe Co. LLC, to investigate the behaviour of FRP-strengthened reinforced concrete slabs and beam-slab assemblies under exposure to a standard fire. The slabs and beams were provided with a unique supplemental fire protection system. The results of fire endurance experiments on two full-scale FRP-strengthened reinforced beam-slab assemblies and two intermediate-scale FRP-strengthened reinforced concrete slabs are described in this report. These experiments were conducted as part of a collaborative research program aimed at studying fire endurance of reinforced concrete members strengthened with externally-bonded FRP systems. The results suggest that by providing proper supplemental fire insulation, as described in this report, fire endurance ratings of up to four hours can be achieved for loaded FRP-strengthened reinforced concrete beam-slab assemblies.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".