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1、AbstractIt’sfrequentlyaffectedbytyphooninChina'scoastalcity,andallthepreviouswinddisasterwerebroughtenormouscasualtiesandpropertylosses.However,thelosscausedbylow-risebuilding’sdamageareofhalfofthewinddisasterloss.Manytyphooninvestigationshowsthatlocaldamageatthevulnerableareaincludin
2、groofcorners,edgesandridgeoritsinducedoveralldamageofthewholebuildingarethetwomainmodesofwind-induceddamageoflow-risebuildings.Therefore,Theresearchofdetailstructurethatcontainsridge,protrudinggablewallandtheparapetinfluenceonroofwindpressureareofaveryimportantpracticalsignificance.Th
3、ispaperbasedonthewindtunneltestdataofTokyoPolytechnicUniversity,usethenumericalsimulationmethodstudyonthebuildingmodelofgeometricsizeis24m×16m×12m.Comparedwiththesamesizeoflow-risebuildingwindtunneltestdata,thenumericalsimulationbasedonRNGk-εturbulencemodelcanaccuratelypredictwindpres
4、suresonlow-risebuildings.Low-risebuildingsroofwindpressureisaffectedbymanyfactors,withthe0°windangleatthedirectionofflowverticaltheshortedgebythehouse,thispaperconcludedthatasthewindangleincreases,theroofhighnegativepressurezonealongtheshortedgebythehouseturntothelongsidebyanalysising
5、theinfluenceofwindangleandslopeangletoroofwindpressurecharacteristic.Withtheincreasingofslopeangle,thesuctionofwindwardroofbacameweaken,thenegativepressurezoneappearedintheareaofleewardroofridgeline.Onthebasisofthismodel,withthewindangleasvariables,in-depthstudyoflocalwindpressurechar
6、acteristicsofgableroofaffectedbythechangeofstructuresize.Researchshowsthat,whentheridgeheightincreased,theshapecoefficientofwindwardroofincrease.Withtheincreaseoftheheightofprotrudinggablewall,roofpartitionshapecoefficientchangessmall.Atverticalwinddirection,thewindpressurecoefficient
7、ofroofedgeregiondecreasedinthecommonroleofridgeandprotrudinggablewall.Butsuctionofwindwardareasbecomeslargeratobliquewinddirection.Anumericalstudywasperformedontheinfluenceofthreekindsofparapetform(continuoushighparapet,localparapet,cornerraisedparapet)inthelocalroof’swindpressuresdis
8、tribu
