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Full-Scale Tests of Gapped-Inclined Bracing System: Seismic Retrofit for Soft-Story Buildings

2019· article· en· W2957572806 on OpenAlex

Why this work is in the frame

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 · 2019
Typearticle
Languageen
FieldEngineering
TopicSeismic Performance and Analysis
Canadian institutionsUniversity of Toronto
FundersNatural Sciences and Engineering Research Council of CanadaUniversity of Canterbury
KeywordsConstructabilityFrame (networking)BracingStructural engineeringBraceFull scaleScale (ratio)Geotechnical engineeringEngineeringGeologyMechanical engineeringPhysics

Abstract

fetched live from OpenAlex

This paper presents the results of full-scale experimental validations of the gapped-inclined bracing (GIB) system, a novel structural device for the seismic retrofit of soft-story buildings. The experiment consisted of three phases. Phase I tested a single brace to investigate its constructability and characterize its component-level performance. The second and third phases compared the reversed-cyclic response of two full-scale RC single-bay, single-story frames representing the soft story of a six-story RC frame: a conventional frame and the same frame retrofitted with GIBs. With the results observed from Phase I, the design considerations and constructability of the GIB system were improved for Phase III. The results of Phases II and III demonstrate that the GIB system significantly increases the lateral drift capacity of the RC frame, shifting strength degradation from ±1.5% for the original frame to more than ±4.0% drift for the retrofitted frame. In addition, even after considerable damage to the columns, the retrofitted frame was able to undergo repeated cycles of up to 7.0% drift without compromising its gravity load-bearing capacity, revealing that the damaged frame develops a stable GIB-only rocking response for large drifts.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.269
Threshold uncertainty score0.796

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
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 head0.004
GPT teacher head0.197
Teacher spread0.193 · 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