交錯(cuò)桁架在循環(huán)荷載作用下的受力性能研究.pdf

1、西安科技大學(xué)碩士學(xué)位論文交錯(cuò)桁架在循環(huán)荷載作用下的受力性能研究姓名：王海飛申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：郭秉山2011Subject:StudyontheMechanicalPropertiesoftheSteelStaggeredtrussSystemundertheCyclicLoadingSpecialty:StructuralEngineeringName:WangHaifei(Signature)Instruct:

2、GuoBingshan(Signature)ABSTRACTSteelstaggeredtrusssystemisusedintheMultihighBuildingsuchashotelresidence.Atpresentdomesticinternationalscholarscarriedoutaseriesoftheeticalanalysisonsuchasystemithasbeenappliedabroadwidely.

3、Butalotofresearchismainlyconcentratedintheintegralityperfmancewhilelittleresearchisonthestructurecomponentsuchasbraces.Embarkingfromtheholisticresistantbehaviofthesteelstaggeredtrusssystemthispaperthoughlyresearchedtheme

4、chanicalbehaviofthebracesinsteelstaggeredtrusssystem.Ithastheextremelyimptantpracticalsignificanceregardingtheinstructiondesignwkthewidelyapplianceofthesteelstaggeredtrusssystem.Thispaperappliesmaterialnonlineargeometryn

5、onlinearfiniteelementmethod(FEM)tothoughlyanalyzethebearingcapacitystiffnessstressdistributionenergydissipationbracesfceofthesteelstaggeredtrusssysteminthemonotonicloadingcyclicloading.Themainconclusionsweregot:(1)Inthem

6、onotonicloadingthebothendsofthebraceswhichconnectedthegussetplatesarefirstlyintotheplasticregionfurtherdevelopedtobeaplastichinge.Thestressoftheendsofthebracesismuchlagerthanthecentralregionstheendsofthebraceshavetheobvi

7、ousstressconcentration.(2)Inthecyclicloadingthestaggeredtrusssystemshysteresiscurveisfusifmfullstabilitywithgoodenergydissipation.(3)Theweeklocationisthecentralsectionwithoutwebmembersofthedleframeinthestaggeredtrusssyst

8、emtheobviousstressconcentrationisbecameatthebothendsofthebracessothebracesstrengthstabilityshouldbechecked.(4)Hybridstaggeredtrusssystemisdifferentfromthedinarytruss.Itsbracesarenotsimpleaxialfcecomponentsthestrengthstab