Effects of Reference Displacement and Damage Accumulation in Wood Shear Walls
Why this work is in the frame
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Bibliographic record
Abstract
The objectives of this study were: (1) to evaluate the effect of reference displacement on wall behavior under fully reversed cyclic loading using the Consortium of Universities for Research in Earthquake Engineering (CUREE) test protocol and (2) to assess damage accumulation for the imposed drift levels. Three walls were tested under monotonic loads to determine reference displacements. Four sets of tests, each consisting of two wall specimens, were conducted using the CUREE protocol with four different reference displacements. Results show that the reference displacement can influence wall strength by up to 15% while there was little or no effect on stiffness and area under the backbone curve. Three additional tests were conducted using a segmented version of the CUREE protocol to provide a way to correlate visible damage and stiffness degradation to imposed drifts. Results show that while visible damage was minimal at drifts as high as 1%, (8% of nails slightly damaged), a 52% reduction in secant stiffness had occurred.
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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