Ambient Vibration Measurements of Dynamic Properties of School Buildings in Montreal, Quebec
Why this work is in the frame
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Bibliographic record
Abstract
As part of a research project conducted at McGill University, in-situ dynamic properties of 80 low-rise school buildings located in Montreal, Quebec, were identified from ambient vibration measurements. Natural periods determined for the two most common lateral load resisting systems (concrete shear wall buildings and concrete frame buildings with unreinforced masonry infill walls) are presented. They are compared to approximate equations that estimate the fundamental period as a function of building height, given in the 2010 National Building Code of Canada. It is shown that the fit between the experimental periods and approximate code formulae is poor, with code expressions grossly overestimating the periods. Linear regression on the experimental data resulted in the development of better fitting expressions. The periods obtained from ambient vibration measurements were also compared to generic capacity curves used in the Hazus-MH MR4 multi-hazard loss estimation methodology. The measured periods seem to be slightly low, but they are generally in agreement with the theoretical capacity curves.
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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 | 0.001 |
| 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