great works autumn engineering mechanics online homework （大工秋《工程力学(一)》在线作业）

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1、Greatworks13autumnEngineeringMechanics(1)onlinehomework3（大工13秋《工程力学(一)》在线作业3）Greatworks13autumn"EngineeringMechanics(1)"onlinehomework3Totalscore:100testtime:-testscores:82SinglequestionjudgmentFirst,radioquestions(10questions,60points)Score:42V1.cutsabeamorsing

2、lerigidknot,equivalenttoremoving(a)anexcessconstraint.A.1B.2C.3D.4Thecorrectanswer:CFullScore:6points:6Inthe2.span,thesimplysupportedbeamattheendoftheconcentratedforceFistaken,andthemagnitudeoftheshearforceacrossthemiddlesectionofCis().A.F/2B.-F/2C.FD.isuncertai

3、nThecorrectanswer:DFullScore:6points:03.abouttheprincipleofvirtualworkofdeformablebodies,thefollowingstatementisincorrect.A.theexternalforcesystemmustbeabalancedforcesystemB.displacementmustsatisfytheconditionsofvirtualdisplacementC.forceanddisplacementarerelate

4、dbetweenthetwostatesD.isapplicabletoanydeformablebodyofforcedeformationrelationThecorrectanswer:CFullScore:6points:64.,themomentdistributionmethodisusedtocalculatethelateraldisplacementoftherigidframe,andthetransfercoefficientisequaltotheverticalsupportoftheunif

5、ormstraightrod.A.0B.0.5C.1D.-1Thecorrectanswer:DFullScore:6points:05.thereasonableaxisofthethreehingedarchisundertheactionofradialuniformload.A.arclineB.parabolaC.catenaryD.sinecurveThecorrectanswer:AFullScore:6points:66.thefollowingoptionsdonotbelongtothepremis

6、eofthemultiplicationofthegraphtocalculatethedisplacement.TheA.barsectionisastraightrodwithequalsectionThephysicalparametersofeachrodsectionofB.areconstantAtleastoneoftheintegrandofC.isastraightlinefigureD.twointegrandarestraightlinesThecorrectanswer:DFullScore:6

7、points:07.whenthesupportofthestaticallydeterminatestructuremoves.TheA.memberhasnodeformation,andthestructurehasnodisplacementTheB.memberhasnodeformation,andthestructurehasdisplacementTheC.memberhasdeformationandnodisplacementofthestructureTheD.memberhasdeformati

8、on,andthestructurehasdisplacementThecorrectanswer:BFullScore:6points:6Whenthe8.symmetricstructureactsagainsttheforce,thesheardiagramofthestructureis(),andthemomentdia