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ID:42106800
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页数:11页
时间:2019-09-08
《13春学期《钢结构(二)》在线作业3》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、13春学期《钢结构(二)》在线作业3NortheasternUniversity,14spring,13autumnEast,13springsemester,steelstructure(two)onlinehomework3Totalscore:100testtime:一RadioexaminationRadioexaminationquestions(20questions,100points)OneA.AB.BC.CD.DFullmarks:52.ofthemosteasytoproducestressbrittlefailurestateis■A.onewayco
2、mpressivestressstateB.threedirectiontensilestressstateThestressstateofC.twoisalwayspressingD.uniaxialtensilestressstateFullmarks:52.biaxialsymmetricI-shapedbeam,thestrengthandstiffnessofthebeamaresatisfiedbytheexperience,andthelocalbucklingofthewebundertheactionofbendingstressispossible.In
3、thecaseofotherconditionsunchanged,shouldadoptthefollowingschemein・A.increasesthethicknessofthewebB.reducesthecomputationalheightofthewebC.switchtohigherstrengthmaterialsD.setsidesupportFullmarks:5FourA.AB.BC.CD.DFullmarks:5FiveA.AB.BC.CD.DFullmarks:56.ofthebigslendernessratiooftheaxialcomp
4、onent,themosteffectivemeasurestoimproveitsoverallstabilityis・A.increasethesupportconstraintB.increasethestrengthofsteelC.increasetheradiusofgyrationD.reducesloadFullmarks:5Thefollowing7.kindofbeamplatetocalculatetheactualheightisequaltotheheightoftheweb・A.hotrolledsteelgirderA.cold-formedt
5、hin—walledsteelbeamsB.weldedcompositebeamC.rivetedcompositebeamFullmarks:5Theconnectionofhighstrengthbolt8.bearingtypesheardeformation.A.issmallerthanfrictiontypehigh-strengthboltB.islargerthancommonboltsC.isthesameascommonboltsD.islargerthanfrictiontypehighstrengthboltFullmarks:5standardt
6、ensileelongationand9.constructionsteelspecimengaugelengthelongationvalue・A.whentheyieldstressisreachedWhenB・reachestheultimatestressAfterplasticdeformationofC.specimenAfterthefractureoftheD.specimenFullmarks:5TenA.6B.8C.10D.12Fullmarks:511.inthesteelstructurehousing,choiceofsteel,thefollow
7、ingfactorsfactorsinisnotthemainconsideration.TemperatureatsiteofA.constructionB・loadpropertiesA.steelcostB.fireratingofbuildingsFullmarks:512.highstrengthbolttensilestrength・A.isrelatedtothemagnitudeofthepullB.isrelatedtothemagnitudeofpretensionTheC.isrelatedt
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