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1、地大《鋼結(jié)構(gòu)》在線作業(yè)一〃Bigsteelstructure7'onlinehomeworkTotalscore:100testtime:-RadioexaminationRadioexaminationquestions(25questions,100points)The1.axistensionmemberisinthestateofultimatestrengthTheaveragestressofthenetsectionofA.reachesthetensilestrengthofsteelTheaverages
2、tressoftheB.grosssectionreachesthetensilestrengthofthesteelTheaveragestressofthenetsectionofC.reachestheyieldstrengthofsteelTheaveragestressoftheD?grosssectionreachestheyieldstrengthofthesteelFullmarks:42.becausetheconstructionsteelismostlygoodplasticproperty,thee
3、xistenceofresidualstresswillA.reducesstaticloadcarryingcapacityB.hasnoeffectonstaticloadingcapacityA.improvesstaticloadcarryingcapacityB.steelispronetoplasticfailureFullmarks:42.steelaftercoldhardeningyieldpoint(),plasticreduced?A.decreaseB.invariantC.raiseD.becom
4、eszeroFullmarks:43.thebucklingofaone-wayflexuralbeamisunstablewhenitlosesitsoverallstability?A.bendingB.twistC.bendingtorsionD.bidirectionalbendingFullmarks:42.anaxialcompressioncolumnisconstructedbyusingQ235steeland16manganesesteelrespectively.Thecriticalforceoft
5、heformeristhesameastheslendernessratioandthecriticalforceofthelatterintheelasticrange?A.greaterthanB.islessthanC.isequaltoornearD.cannotcompareFullmarks:43.,inthevariousfactorsthataffecttheperformanceofsteel,themostimportantfactoris()?A.structuraldefectsB.metallur
6、gicaldefectsC.hardeningofsteelD.loadingspeedFullmarks:4Whencalculatingtheoverallstabilityof7.latticeaxiallycompressedmembers,dueto(),therefore,theratioofslendernessratioisreplaced.TheA.latticecolumnmayundergogreatersheardeformationB.requirestherealizationofequalst
7、abilitydesignC.latticecolumnmaybeonelimbunstableLoadcarryingcapacityofD?latticecolumnsisimprovedFullmarks:48.inthedesignofsteelstructures,thefollowingvaluesareusuallyusedasthebasisforthedesigncapacity?A.yieldpointB.proportionallimitC.tensilestrengthD.elongationFul
8、lmarks:4Thedesignofbendingmembersofsteelstructuresshouldgenerallybecarriedoutbelow(9.)Theoverallstability,localstabilityanddeformationintheplaneofA.stre
