Effect of the Cross-Sectional Rigidity on the Static and SeismicBehaviour of CSP Culverts
Bibliographic record
Abstract
In Canada and around the world there is a growing trend to use wide span soil-steel arch structures as a substitute for the more conventional types of bridges and rigid culverts. CSP culverts (corrugated steel plate culverts) are flexible structures which gain load-bearing capacity by interaction with the surrounding engineered backfill enabling them to carry significant overburden and vehicular loads. In this paper, comprehensive finite element analyses were carried out to study the effect of changing the cross-sectional rigidity on the static and seismic behaviour of CSP culverts. First, the static behaviour of a field case study of a wide span culvert was verified. Then, the full dynamic analyses were utilized using seismic records suitable for the city of Vancouver in Western Canada. Subsequently, the culvert's cross-sectional properties were changed to examine their effect on the culvert's performance. Finally, the results of the finite element analyses were compared with the simplified design equations of the Canadian Highway Bridge Design Code (CHBDC). This study shows that the culvert's cross-sectional rigidity has a significant effect on the soil structure interaction (SSI) between the culvert and the surrounding backfill, which affects the performance and the load carrying capacity of the culvert.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".