鋼桁架與壓型鋼板-混凝土組合樓板火災(zāi)行為的數(shù)值模擬研究.pdf

1、沈陽建筑大學碩士學位論文鋼桁架與壓型鋼板混凝土組合樓板火災(zāi)行為的數(shù)值模擬研究姓名：張雪波申請學位級別：碩士專業(yè)：工程力學指導(dǎo)教師：劉永軍200801碩士研究生學位論文AbstractIIIAbstractThecombinedtrusssystemwhichiscombinedbysteeltrussprofiledsteeldeckconcretecompositeslab(hereinafterfsht:compositeslab)

2、isanewtypecombinedstructure.Fitislighthasquickconstructiongoodductilityhigherantiearthquakecapacitysoonitiscommonlyusedinbigspanstructurehighconstruction.Specificmethodisstillambiguousindomesticcriterionitcantmeettheneed

3、sofengineeringdevelopmentatpresent.Therefethethoughstudyoffireresistancefireresistancedesignmethodofsteeltrussprofiledsteelcompositedeckslabshasgreattheeticalvaluepracticalsignificance.Atpresentdomesticfireresistancedesi

4、gnmethodisbasedonexperiment.Thedisadvantageofthemethodisobvious.Thecostofexperimentisverymuchthesimulationofthequantitydistributionofloadtherestrictionofthememberinthewholestructureisverydifficult.Meanwhiletheconfirmingo

5、ftemperaturedistributionfireresistancecapacityofthememberunderfirebycalculationcostslesssavestimeisconvenient.Furthermeitsprecisionishigh.Therefethemethodofstructurefireresistancedesignbasedoncalculationhasgreattheetical

6、valuepracticalsignificance.AsfiniteelementsoftwareANSYSisusedtoanalyzeperfmanceofsteelcompositeslabunderfireinthispapertestifiesthatthetheyisrighttheresultisaccuratereliablethemainresearchwkincludesasfollows:1.FEManalysi

7、softemperaturedistributionofsteeltrusscompositedeckslabsunderfire(1)AppropriateFEMmodelsmaterialmodelsareedtomakethesimulationresulttheexperimentresultcoincidenttheaccuracyofthissimulationmethodisverified.(2)Thethickness

8、ofcoatofreinfcementischangedtheinfluenceoftemperaturedistributionofsteeltrusscausedbythedifferentthicknessofcoatisanalyzed.(3)Theparametersofcompositedeckslabsarechangedtheinfluenceonthetemperaturedistributioncausedbythe