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Seismic Resistance of Wood Shear Walls with Large OSB Panels

2001· article· en· W2071613004 on OpenAlex

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A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of Structural Engineering · 2001
Typearticle
Languageen
FieldEngineering
TopicWood Treatment and Properties
Canadian institutionsRead Jones Christoffersen (Canada)University of British Columbia
FundersLuonnontieteiden ja Tekniikan Tutkimuksen ToimikuntaNational Research Council CanadaNatural Sciences and Engineering Research Council of CanadaCalifornia Institute of Technology
KeywordsShear wallOriented strand boardStructural engineeringStiffnessShear (geology)Geotechnical engineeringGeologyCross laminated timberMaterials scienceComposite materialEngineering

Abstract

fetched live from OpenAlex

Results are presented from studies on the seismic resistance of wood shear walls sheathed with large (2.4 × 2.4 m) and standard (1.2 × 2.4 m) size oriented strand board (OSB) panels. Comparisons were made among twelve 2.4 × 2.4 m walls tested under quasi-static monotonic and cyclic, as well as dynamic, loads. In push-over tests, all walls reached a drift of approximately 2.5% at maximum load. A 26% increase in shear capacity was achieved using large panels. The nails that would be at internal seams in walls with standard panels were redistributed around the exterior edges of some large panel walls. They also showed a 104% increase in shear capacity and a 30% increase in initial stiffness. These walls performed significantly better when tested dynamically, using the east-west motion recorded at Joshua Tree Station during the 1992 Landers, Calif., earthquake. Their maximum drift was reduced by approximately 25% over standard walls. Damage incurred during dynamic tests consisted mainly of nail pullout and tear out. Renailing at these locations is simple and can restore the wall to a satisfactory performance level.

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Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.645
Threshold uncertainty score0.470

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.007
GPT teacher head0.179
Teacher spread0.173 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it