Variation of Applied Moment and Tensile Force in Bridge Deck Slab Overhang Due to Transverse Vehicle Impact to Bridge Barriers
Bibliographic record
Abstract
This study examines the moment and tensile force resulting from transverse vehicle impact loads applied at various points along the barrier length.Using three-dimensional finite-element modeling, the barrier and deck slab overhangs of 30 m and 8 m lengths were analyzed for TL-5, TL-4 (MASH), TL-4 (NCHRP 350), and TL-2 single-slope concrete barriers mounted on a 1.5 m deck overhang.The findings were compared with moment and tensile force values from a previous study that focused on vehicle impacts at the barrier's mid-length and end locations.The results reveal a transitional length between the barrier's mid-length and end locations where the applied moment and tensile force sharply decrease, reaching values similar to those at the mid-length.This transition is not addressed in the equations included in the 2025 edition of the Canadian Highway Bridge Design Code.It is recommended that designers account for the variation in applied moment and tensile force at locations other than the mid-length and end for safe design.
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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 | 0.001 |
| 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) | 0.001 | 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".