EXPERIMENTAL PARAMETER STUDY ON CLT SHEAR WALLS WITH HIGH-PERFORMANCE SELF-TAPPING SCREW CONNECTIONS
Bibliographic record
Abstract
This paper presents experimental investigations on the performance of Cross-laminated Timber (CLT) shear walls with high-performance self-tapping screw (STS) connections.Hold-down and panel-to-panel connections were tested under monotonic and quasi-static reversed cyclic loading.The derived design values of STS were significantly higher than those calculated using the current Canadian Standard for Engineering Design in Wood.Subsequently, a total of twenty-six CLT shear walls (in single-, double-and triple-panel configurations) were tested under monotonic and quasi-static reversed cyclic loading.The shear walls consisted of 5-ply, 139 mm thick and 3 m high CLT panels with aspect ratio of either 2:1 or 3:1, and different numbers of STS in the connections.The shear wall strength and corresponding displacements increased with the number of screws in hold-downs and spline joints, further it increased with number of connected panels and decreased as a function of aspect ratio.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".