Experimental investigation on the effect of longitudinal reinforcement on shear strength of fibre reinforced polymer reinforced concrete beams
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Bibliographic record
Abstract
The shear design equation of CSA S806-02 does not consider the effect of the axial stiffness of the reinforcing bars for beams with effective depth greater than 300 mm. This paper examines the shear strength of such beams without stirrups. A total of 16 beams reinforced with GFRP, CFRP, and steel bars were tested under four-point monotonic loading. The test results were analyzed and compared with the predictions of CSA S806-02 shear design equation. It was observed that the conservatism of CSA S806-02 prediction, for beams with effective depth greater than 300 mm, increased with the increase in the axial stiffness of the reinforcing bars. Based on the test results, a modification to the CSA S806-02 shear design equation is proposed. The proposed modification was found to be consistent for predicting the shear strength of beams with different axial stiffness of the reinforcing bars.
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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) | 0.001 | 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