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菱形马鞍屋盖表面风压特性的风洞试验研究(英文).docx

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菱形马鞍屋盖表面风压特性的风洞试验研究(英文) WindTunnelTestResearchonSurfaceWindPressureCharacteristicsofDiamond-shapedSaddledRoof Abstract Inordertoinvestigatethesurfacewindpressurecharacteristicsofdiamond-shapedsaddledroof,awindtunneltestwascarriedout.Byanalyzingthedistributionlawofwindpressureonthesurfaceoftheroof,therelationshipbetweentheshapeoftheroofandthewindpressuredistributionwasrevealed.Theresultsshowthatthewindwardsideoftheroofhasthehighestwindpressureandtheleesidehasthelowestwindpressure.Moreover,withtheincreaseofwindspeed,thewindpressurealsoincreases.Theresearchcanprovidereferenceforthedesignandconstructionofdiamond-shapedsaddledroof. Keywords:windpressure,diamond-shapedsaddledroof,windtunneltest,windwardside,leeside. Introduction Withtherapiddevelopmentoftheconstructionindustry,moreandmorearchitectshavedesignedbuildingswithuniqueshapesandstyles.Amongthem,diamond-shapedsaddledroof,asatypicalarchitecturalstyle,hasattractedattentionforitsuniqueshape.Theroofstructureischaracterizedbyitssharppeaksandvalleys,whichcreatesanaestheticallypleasingeffect.However,duetoitsuniqueshape,thewindpressureontheroofsurfaceisunevenlydistributed,whichmaycausedamagestotheroofstructureandaffectthesafetyofthebuilding.Therefore,thestudyofthesurfacewindpressurecharacteristicsofdiamond-shapedsaddledroofisofgreatsignificance. Inthispaper,awindtunneltestiscarriedouttoinvestigatethesurfacewindpressurecharacteristicsofdiamond-shapedsaddledroof.Thedistributionlawofwindpressureonthesurfaceoftheroofisanalyzed.Therelationshipbetweentheshapeoftheroofandthewindpressuredistributionisrevealed,whichcanprovidereferenceforthedesignandconstructionofdiamond-shapedsaddledroof. ExperimentalMethodology Theexperimentwasconductedinalow-speedwindtunnelwithacross-sectionalareaof0.6m×0.6mandaworkingsectionof2.5m×2.5m×6m.TheexperimentalmodelisshowninFigure1.Thesizeofthemodelis400mm×400mm×160mm,andthescaleis1:50. Duringtheexperiment,thewindspeedwassettobe5m/s,10m/s,15m/srespectively.Thewindwardsideandleesideofthemodelweremeasur