Structural behavior of cast-in-place and precast concrete barriers subjected to transverse static loading and anchored to bridge deck overhangs
Why this work is in the frame
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Bibliographic record
Abstract
In this study, experimental testing was performed on cast-in-place and precast barriers subjected to quasi-static loading and anchored to 6 m long bridge decks with a 1 m overhang. The three selected bridge barrier configurations include an ordinary concrete cast-in-place barrier, and two high performance fibre reinforced concrete precast barriers, one with and one without barrier-to-barrier connections. An experimental setup dedicated to testing the large-scale barrier–deck slab overhang specimens to failure was designed. The structural behavior of the three barrier configurations were analyzed and compared. The tests demonstrated that all three test configurations exceeded the design criteria in CSA-S6-06 and AASHTO LRFD, that the durability of the slab overhang is not adversely affected when using precast barriers, and that the shear key designed to connect the precast barriers provides adequate barrier longitudinal continuity.
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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 | 0.001 | 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