Maintenance plan and durability design for the new Samuel De Champlain Bridge
Bibliographic record
Abstract
Opened in 2019, the new Samuel De Champlain Bridge in Montreal, Canada is one of the busiest bridges in North America. The 3.4-km long-span bridge across the St. Lawrence River is comprised of three structures: A 529 m signature span featuring an asymmetric Cable-Stayed Bridge, a 762 m East Approach, and a 2044 m West Approach. Due to its geographical location, this lifeline structure faces unique engineering design challenges including extreme cold temperatures, ice abrasion, de-icing salt attacks, wind, vessel collision, scour, and seismic hazards, while meeting its design life of 125 years. A comprehensive durability plan as well as access and maintenance plans were developed by the design-build team to address material selections, the corrosion protection system, construction quality and inspection, element replacement intervals, and maintenance equipment, including the under-bridge maintenance gantry (UBMG) and electronic superstructure shuttle/ vehicle as keys to the longevity of the bridge.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.015 | 0.003 |
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".