Soil Structure Interaction and Performance Based Design for the Port Mann Cable Stayed Bridge
Bibliographic record
Abstract
<p>The performance based seismic design of the Port Mann Bridge, a 10 lane cable-stayed bridge located 30min outside of Vancouver, BC, is presented in detail. The Port Mann Bridge is the centerpiece of the Port Mann/Highway 1 Improvement Project. Located in a high seismic region, the design-build project includes the 850-meter-long Port Mann Bridge carrying the Trans Canada Highway over the Fraser River. With a 470-meter-long main span and 190-meter-long side spans, and 52-meter-wide deck, the Port Mann Bridge is the largest main span crossing in Western Canada, the second longest cable-stayed bridge in North America, and one of the widest bridges in the world. The geotechnical conditions varied along the 2 km bridge length, and included soil layers that are highly susceptible to liquefaction in the larger events. The geotechnical development of ground motions and the site-specific non-linear soil response are discussed. The three-dimensional modeling techniques used to capture the soil structure interaction (SSI) in the global seismic analysis of the Port Mann Bridge are described, with special focus on the approach to non-linear structural modeling and the implementation of a strain-based seismic design.</p>
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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".