Learnings from the past to design metallic bridges spanning centuries into the future
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
<p>Since the 20<sup>th</sup>century, modern bridges have been typically designed for a relatively short design life of either 100 or 120 years. In reality, there are numerous examples of bridges that are over 100 years old that are still in service today. In some cases, these bridges have heritage protection status. In other cases, they are a vital link to their transportation network, for which any disruptions will result in significant economic impact to the local or regional economy.</p><p>Over the years, the authors have been involved with the inspection, maintenance, and refurbishment of historic bridges. This paper provides an overview of lessons learnt from examples of historic metallic bridges in New Zealand and the United Kingdom, as well as present the case for a 200-year bridge.</p><p>Lessons learned from failures in design and detailing for durability, material selection, and allowance for future access for inspection and maintenance can be used when designing new bridges, with the aim to minimize future maintenance cost and assisting 21<sup>st</sup>century bridges to span centuries into the future.</p>
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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 it