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Record W1967052792 · doi:10.2749/222137807796120076

Punching Shear Retrofit of Reinforced Concrete Flat Slabs Subjected to Static and reversed Cyclic Loads

2007· article· en· W1967052792 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.

fundA Canadian funder is recorded on the work.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueReport · 2007
Typearticle
Languageen
FieldEngineering
TopicStructural Behavior of Reinforced Concrete
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsStructural engineeringSlabPunchingRetrofittingDuctility (Earth science)Shear (geology)ReinforcementDissipationMaterials scienceReinforced concreteGeotechnical engineeringGeologyEngineeringComposite materialCreep

Abstract

fetched live from OpenAlex

<p>The paper presents research program on retrofitting reinforced concrete slab-column connections to increase their punching shear strength and ductility in seismic regions. The current testing program includes five specimens, with and without shear reinforcement. The goal is to experimentally study the efficiency of shear bolt retrofitting technique in preventing collapse of flat concrete slabs in seismic regions. The proposed technique using shear bolt reinforcement allows repair and strengthening of existing, previously built flat reinforced concrete slabs supported on columns, which do not have adequate punching shear strength at the column area. A shear bolt consists of a headed vertical rod threaded at the other end for anchoring using a washer and nut system. The bolts are installed in holes drilled in a slab in concentric perimeters around the column. The presented results of the experimental work include large-scale interior reinforced concrete slab-column connections tested under vertical and reversed cycling horizontal loads. The hysteretic response behaviour is presented which shows how transverse reinforcements increase punching shear capacity, ductility and energy dissipation capability of slab-column connections. Discussion related to crack formation and propagation, deformations and strains in the reinforcements is included. The computed capacities of the specimens are compared to the experimental values.</p>

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.020
Threshold uncertainty score1.000

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 head0.009
GPT teacher head0.241
Teacher spread0.232 · 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