Oddziaływanie wiatru na dachy płaskie

• Autorzy: Lipecki T.

Warianty tytułu

EN

Wind action on flat roofs

• Języki publikacji: PL

Abstrakty

PL

W pracy przedstawiono zagadnienie oddziaływania wiatru na prostokątne dachy płaskie budynków średniej wysokości i wysokich. Wyznaczono rozkłady powierzchniowe współczynników średniego ciśnienia Cp na powierzchni takich dachów. Analizy przeprowadzono na podstawie badań modelowych, które zostały wykonane w tunelu aerodynamicznym z warstwą przyścienną znajdującym się w Laboratorium Inżynierii Wiatrowej Politechniki Krakowskiej. Przedmiotem badań były pionowe sztywno zamocowane w podłodze tunelu aerodynamicznego na stole obrotowym modele prostopadłościenne, o dwóch stosunkach wymiarów boków przekroju poprzecznego: 1:2 oraz 1:4. Pomiary ciśnień powierzchniowych przeprowadzono dla pełnego kąta natarcia wiatru na modele od 0° do 90°, co 15°. Zbadano wpływ struktury wiatru na rozkłady ciśnień, uwzględniając sześć znacząco różniących się przypadków napływu.

EN

The paper deals with the wind action on flat roofs of rectangular shapes which can be considered for medium-rise and high-rise buildings. Distributions of mean pressure coefficient Cp on flat roofs were measured. All analyses were based on model measurements which had been performed in the boundary layer wind tunnel in Wind Engineering Laboratory of Cracow University of Technology. Vertical, fixed in the floor of the wind tunnel on the turn table rectangular prisms of the ratio of cross-section dimensions 1:2 and 1:4 were investigated. Measurements were carried out for the angle of wind attack in the range 0°-90°, every 15°. The influence of the wind structure on pressures was investigated in six different cases of the approaching wind.

Słowa kluczowe

PL

tunel aerodynamiczny; badania modelowe; oddziaływanie wiatru; współczynniki aerodynamiczne ciśnień; dachy płaskie

EN

wind tunnel; model tests; wind action; aerodynamic coefficient of pressure; drag and lift; flat roofs

• Wydawca: Wydawnictwo Politechniki Lubelskiej
• Czasopismo: Budownictwo i Architektura
• Rocznik: 2014
• Tom: Vol. 13, nr 2
• Strony: 239--246
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Lipecki T.

• Katedra Mechaniki Budowli, Wydział Budownictwa i Architektury, Politechnika Lubelska

Bibliografia

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