STRENGTHENING OF STEEL AND CONCRETE COMPOSITE TRUSSES BY UNBONDED EXTERNAL PRESTRESSING
Why this work is in the frame
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Bibliographic record
Abstract
In this paper, the method of strengthening of steel and concrete composite trusses by using unbonded external prestressing was presented. Based on the experimental results compared with the analytical calculations, the structures are believed to perform better than the conventional composite trusses. The additional unbonded mono-strand external prestressing tendon of 7.9% of the tension bottom chord cross sectional area results in the 20% higher load carrying capacity. Moreover, there is the advantage of the additional prestressing to improve the accuracy of the flexural stiffness determination by using the transformed section method for the truss-like structural system. However, to maintain the ductile failure mode, the amount of the strengthening tendon should be limited for the required rotational capacity. In conclusion, this method can be useful in the upgrading of the existing composite trusses for both the flexural strength and serviceability.
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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