北航《钢结构设计原理》在线作业二（the northern principle steel structure design of online homework two）

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1、13北航《钢结构设计原理》在线作业二（The13northernprinciplesteelstructuredesignofonlinehomeworktwo）Thenorthern"principle"steelstructuredesignofonlinehomeworktwo1.inordertodeterminetheaxialsectionofthecompactedcolumn,theslendernessratioofthetwoprincipalaxesshouldbeascloseaspossible.A.iseasytoconnectwithothercom

2、ponentsB.issimpleinstructureandeasytomanufactureC.toachieveeconomicresultsD.iseasytotransport,install,andreducenodetypesThecorrectanswer:CFullScore:4points:42.thefollowingitemsdonotbelongtothelimitstatecategoryofstructuralbearingcapacity.StaticstrengthcalculationofA.Dynamicstrengthcalculation

3、ofB.StabilitycalculationofC.DeflectioncalculationofD.beamThecorrectanswer:DFullScore:4points:43.forthecarbonstructuralsteelmemberssubjectedtostaticloadandwithoutseverestressconcentrationatnormaltemperature,theresidualstressofweldinghasnoobviousinfluenceonthefollowing.StiffnessofA.memberUltima

4、testrengthofB.membersStabilityofC.componentsFatiguestrengthofD.componentThecorrectanswer:BFullScore:4points:4The4.axialcompressionlatticecomponentisusedtocalculatetheoverallstabilityofitsimaginaryaxis,becausetheconversionslendernessratioisdueto().TheoverallstabilitybearingcapacityoftheA.latti

5、cemembersishigherthanthatofthesolidmemberswiththesamesectionB.considerstheeffectofstrengthreductionTheeffectofsheardeformationonC.EffectofsinglebucklingonthebearingcapacityofmembersconsideringD.Thecorrectanswer:CFullScore:4points:45.theprincipleofdeterminingthewidthtothicknessratiooftheweband

6、flangeofthecompactedwebcolumnis().A.equalthicknessprincipleB.stabilityprincipleC.equalstrengthprincipleD.equalstiffnessprincipleThecorrectanswer:BFullScore:4points:4Theultimatebearingcapacityof6.steelstructurerefersto()SeverevibrationofA.structureThedeformationofB.structurecan'tmeettherequire

7、mentofuseTheC.structurereachesthemaximumbearingcapacityandproducesdamageD.hasbeeninuseforfiftyyearsThecorrectanswer:CFullScore:4points:47.steelfatiguedamagebelongsto()damage.A.elasticityB.plasticityC.brittlenessD.lowcyclehighstrainThecorrecta