冷彎薄壁型鋼組合樓蓋整體承載性能理論與試驗(yàn)研究.pdf

1、華僑大學(xué)碩士學(xué)位論文冷彎薄壁型鋼組合樓蓋整體承載性能理論與試驗(yàn)研究姓名：吳傳偉申請學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：高軒能20090501華僑大學(xué)碩士學(xué)位論文英文摘要IIABSTRACTCompositeflosystemisanewtypeofresidentialbuildingsysteminlightgaugesteelresidencewhichiscomposedofcoldfmedthinwallsteeltrussO

2、SBboard.ItisveryimptanttopromotethedevelopmentofcoldfmedthinwallsteelresidenceinChina.Indertorealizetheintegralbearingbehaviofcoldfmedthinwallsteelcompositefloprovidecredibilitybasisofpromotioninourcountrytheeticalexperi

3、mentalresearchesarecarriedout.FirstlymaterialtestsofbothsteelOSBboardaretakentogettheelasticmodulusultimatestrength.Secondlyninespecimensincludingsinglesteeltrusssinglecompositetrussthreecompositeflosystemaretestedtogett

4、heultimateloaddefmationcurvefailuremode.Lastlyitisshowedthatthetheeticalanalysismodelisrationalexactreliablebycomparingtheresultsofexperimentthetheeticalanalysis.Compositeflocanbesimplifiedtocompositetrussesinthetheetica

5、lanalysis.Thecompositetrussiscomposedoftopchdofcompositetrussbottomchdofcompositetrusswebmember.ThetopchdofcompositetrussiscomposedoftopchdoftrussOSBboardthat’sattachedtotopchdoftrusswithselfdrillingscrewscanbeconsidered

6、asapartoftopchdoftruss.Thebearingcapacityfmulaofcompositetrusseswaspresentedbyelasticplastictheyanalysis.Consideringthenonlinearityofthematerialgeometrynonlinearfiniteelementmodelwassetupfcalculatingtheintegralbearingcap

7、acityofcoldfmedthinwallsteelcompositeflothenbasedontherationalexactreliabletheeticalanalysismodelvalidatedbyexperimentalresultssomefactswhichmaybeaffectintegralbearingcapacityofcoldfmedthinwallsteelCompositeflohavebeenta