Incremental Dynamic Analysis of Existing Steel Braced Frame Buildings in Moderate Seismic Zones
Why this work is in the frame
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Bibliographic record
Abstract
Concentrically braced frames (CBF) are among the most popular structural systems used in Eastern Canada for low- and middle-rise buildings. Across southern Quebec, in the area of St. Lawrence and Ottawa River valleys, existing vulnerable buildings, designed and built prior to the development of modern seismic design codes are at risk due to an increase in earthquake activity. This study is focused on the seismic assessment of 3- and 6-storey CBF buildings located in Montreal and Quebec that were designed based on the 1980 Canadian code provisions. Using incremental dynamic analysis and the fitted fragility curves, the probability of failure of selected structures are estimated. It is concluded that both low- and middle-rise CBF buildings located in Montreal and Quebec are exposed to earthquake damage risk.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.001 | 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