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ID:47895995
大小:84.48 KB
页数:12页
时间:2019-10-21
《地大《钢结构》在线作业一》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、地大《钢结构》在线作业一〃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
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