Discrete Shear Connection for a Portable Composite Bridge
Bibliographic record
Abstract
To enable a portable composite bridge, a shear connection between steel plate girders and precast concrete deck panels, which would allow these two components to be fastened and unfastened, proposed. In the system, points of shear connection would be spaced at 3 m on center along the length of the girder. Finite element analysis was employed to compare the performance of the proposed composite system to a conventional composite girder with ductile shear studs. A nonlinear analysis was performed, and the proposed composite system was seen to demonstrate a response comparable to that of a composite girder with conventional shear studs. The model was verified for its capability to capture the possible effects of flange buckling, web buckling, and lateral torsional buckling of the steel plate girder. It was then confirmed that these failure modes did not influence the performance of the proposed portable composite bridge system for the investigated bridge configuration. A parametric study also was performed: the effects of shear connection stiffness and spacing on the behavior of the composite girder were investigated. In general, the investigated variations of these parameters had a significant influence on the girder stiffness but only a limited impact on the ultimate strength.
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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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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".