Changes in Bridge Engineering and a New Bridge Over a UNESCO World Heritage Site
Bibliographic record
Abstract
Some 35 years ago the St. Patrick Street Bridge over the Rideau River in the City of Ottawa was replaced. In the then-prevailing climate of bridge design, a conventional post-tensioned concrete multi-span slab bridge was selected for design, and it was constructed in 1975. It might be described as functional but perhaps uninspiring. Since then the steel box girder Hunt Club Bridge has been constructed over the Rideau River, and the Cummings Bridge has been rehabilitated, amongst other bridge works over the river. As well, in the intervening years the Rideau Canal has now been designated as a UNESCO World Heritage Site, and is on the National Register of Historic Sites in Canada. It is now proposed that another new bridge over the Rideau River and Rideau Canal be constructed near the south limit of the City. The development of this project offers the opportunity of examining the significant changes which the bridge design and engineering process has undergone since 1975. This paper follows the evolution of the changes in bridge engineering exemplified by the St. Patrick Street Bridge of 1975, to the current artistic and environmentally-positive approach to bridge engineering built into the proposed new Rideau Arch Bridge, which is intended to inspire the passers-by and contribute in a beneficial way to the City of Ottawa.
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 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 | 0.001 |
| 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".