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Record W2321983789 · doi:10.1061/41031(341)113

Simplified Dynamic Analysis Methods for Guyed Telecommunication Masts under Seismic Excitation

2009· article· en· W2321983789 on OpenAlex
S. Ali Ghafari Oskoei, Ghyslaine McClure

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.

Bibliographic record

VenueStructures Congress 2009 · 2009
Typearticle
Languageen
FieldEngineering
TopicVibration and Dynamic Analysis
Canadian institutionsMcGill University
Fundersnot available
KeywordsSeismic analysisNonlinear systemFinite element methodEarthquake engineeringMast (botany)Structural engineeringEngineeringVulnerability assessmentSeismic hazardComputer scienceIncremental Dynamic AnalysisCivil engineering

Abstract

fetched live from OpenAlex

Earthquake-resistant design of essential infrastructure is paramount in areas with high seismic hazard and risk. Such critical infrastructure includes tall telecommunication masts which are highly nonlinear structures owing to the behaviour of their multi-level guy clusters. During earthquakes, their multi-support foundation is subjected to seismic wave delays that vary with the shear wave velocity of underlying soil. Such effects can be properly described in detailed nonlinear seismic analysis models, which are mainly used to explain exceptional situations (for example, mast failures) and for research purposes. However, the degree of complexity and sophistication these models require is too high for routine engineering design, and simplified procedures are necessary to perform design checks on the seismic vulnerability of tall masts. As a first step towards a simplified dynamic analysis procedure, this paper presents a method to obtain the equivalent dynamic properties of guy clusters. The method is based on rational cable mechanics and is verified with results from detailed finite element analysis of selected detailed models of real guy cables. However, the number of towers and the frequency range studied are limited, as this paper presents an ongoing research. More case studies are necessary to validate the method before it can be used in engineering practice.

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: Methods · Consensus signal: none
Teacher disagreement score0.906
Threshold uncertainty score0.882

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
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 head0.012
GPT teacher head0.325
Teacher spread0.313 · 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