NEW APPROACH TO MULTI-SPAN CFRP CONTINUOUS PRESTRESSED CONCRETE BRIDGES
Bibliographic record
Abstract
This investigation addresses the response of a newly developed two-span continuous double-T (DT) bridge system, internally and externally prestressed using carbon fibre reinforced polymer (CFRP) Leadline tendons. The effect of pre-tensioning and posttensioning on the overall strain distribution was examined. The bridge was subjected to an ultimate load test after it had been subjected to 15 million cycles of two repeated loads of constant amplitudes equivalent to the service load at Midspan 1 and twice the service load at Midspan 2. It was concluded that the presence of continuous externally draped CFRP tendons in the positive and negative moment region), CFRP grids, and the adjusted (increased) level of external prestressing forces results in a ductile CFRP continuous bridge system. Also, the measured ductility index was observed to increase by 48 percent, while maximum midspan deflection was reduced by 75 percent in comparison to corresponding values of a simply supported bridge using the same construction components.
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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 | 0.000 | 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) | 0.001 | 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".