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Record W2326742412 · doi:10.1061/41031(341)316

Wind Loads on Patio Covers

2009· article· en· W2326742412 on OpenAlexaff
Ioannis Zisis, Ted Stathopoulos

Bibliographic record

VenueStructures Congress 2009 · 2009
Typearticle
Languageen
FieldEnvironmental Science
TopicWind and Air Flow Studies
Canadian institutionsConcordia University
Fundersnot available
KeywordsRoofCover (algebra)EngineeringArchitectural engineeringForensic engineeringCivil engineeringMechanical engineering

Abstract

fetched live from OpenAlex

A common characteristic of North American low-rise residential buildings is the patio, a very active and eventful part of family's living space, with a number of activities to take place on it. For most home owners and unfortunately for many retailers, the patio cover is assumed to be a structure of minor importance which can be constructed without any special design. Patio covers are structures that have not fully been examined and evaluated by the present building codes. Very few studies have been carried out and it is questionable whether the performance of these structures is underestimated or, in the contrary, these are over-designed due to the lack of appropriate knowledge. Like every engineering problem, the dilemma vacillates between safety and cost. The current study presents the methodology and findings of a set of wind tunnel tests on a building model with a patio cover attached to it. Both the testing procedure and the data analysis are discussed and detailed results are presented. Although these structures are relatively simple, they occasionally form part of an existing building, subjected to same loads and accommodating the same number of people — or even more — as that building. Patio covers are often treated as a subsection of canopies. Sometimes they are even assumed to be an extension of the roof. In most cases though, patio covers cannot fall under any of the above categories. Canopies are used as covers and are not usually surrounded by walls. The specifications, use and geometry of canopy roofs though, defers significantly of those of patio covers. Moreover, patio covers are often at a lower level than that of the roof, thus they cannot be treated as roof extensions or overhangs. The only wind codes that clearly refer to attached patio covers are the International Building Code [IBC 2000], the International Residential Code [IRC 2000] and the Australian Wind Standard [AS/NZS 1170.2:2002]. Various other national building codes include wind provisions for canopy roofs or open buildings.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.012

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.001

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 head0.225
Teacher spread0.218 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2009
Admission routes1
Has abstractyes

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