MétaCan
Menu
Back to cohort
Record W2581305092

Fire resistance of cross - laminated timber elements

2016· article· en· W2581305092 on OpenAlex
Jan Ratej

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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
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

VenueRepozitorij Univerze v Ljubljani (Univerze v Lgubljani) · 2016
Typearticle
Languageen
FieldEngineering
TopicWood Treatment and Properties
Canadian institutionsnot available
Fundersnot available
KeywordsCross laminated timberCharringParametric statisticsStructural engineeringSlabFinite element methodFire resistanceFire protection engineeringEngineeringForensic engineeringMathematicsMaterials scienceMechanical engineeringStatisticsComposite material
DOInot available

Abstract

fetched live from OpenAlex

Thesis discusses methods for determining fire resistance of cross-laminated timber elements. Two different methods are presented, one according to EN 1995-1-2 and one according to CLT Handbook. Procedures of numerical modelling of cross-laminated elements are presented as well. Based on reports of experimental analyses, where some of them were made in real scale, comments, corrections and findings are offered. It appears that when determining fire resistance according to standard EN 1995-1-2, zero-strength layer d0 and charring depth dchar are most questionable. Indirect difficulty with crosslaminated elements is delamination phenomenon, and with latter connected numerical modelling and integration of phenomenon in current calculation methods, that are still relatively inaccurate. Specific problem is the determination of the critical temperature at which the glue separates and therefore lamination occurs as well as determination of higher degree of charred wood that occurs due to delamination. The last chapter presents the essential part of the thesis. In this chapter, parametric study for determining fire resistances of CLT slab according to European EN 1995-1-2 and Canadian CLT Handbook is performed. Parametric study discusses the effects of different sizes of openings and size of fire compartment where development of parametric fire is determined according to EN 1991-1-2. It was found out that fire limited to solely one room does not cause failure of the CLT slab, but in the case if fire progresses to entire apartment, fire would cause failure of the CLT element. Last part of the parametric study discusses deviation between both methods for determining the standard fire resistance of CLT elements. In the study influence of varying number of layers and length of CLT plate is compared. Comparison showed that more conservative results are obtained with CLT Handbook method.

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: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.693
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.203
Teacher spread0.194 · 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