An effective peak stress formula for concrete confined with carbon fiber reinforced plastics
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Bibliographic record
Abstract
The uniaxial compression test results of three different strengths and three different sizes of concrete cylinders confined with different layers of carbon fiber reinforced plastics (CFRP) are used to develop an effective peak stress formula for predicting the strength of confined concrete. The theory of this peak stress formula was based on the triaxial confined test of soil and rock, and the lateral confinement of the concrete was assumed to be due to the CFRP. The peak stress of the confined concrete can be explicitly expressed as a function of the unconfined concrete strength and the lateral CFRP confined strength. Experiments were done on 108 concrete cylinders, and the test results show the accuracy and effectiveness of this peak stress formulation of confined concrete.Key words: confined concrete, peak stress, carbon fiber reinforced plastics.
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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) | 0.000 | 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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it