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1、钢结构设计原理练习及答案14（Steelstructuredesignprinciples,exercisesandanswers14）Moni4Simulationquestions4First,fillintheblanks(1.5pointsperminute,15points)1.Thefailuremodesofshearboltsare:,,and.AnswerTheanswercutboltholewall,crushing,steelplateisbroken,endplate,punchingshearbendingfailureofbolt.2.Press
2、uretypehighstrengthboltsareonlyusedtowithstandtheconnectionbetweenloadandloadstructure.AnswerStaticandindirectdynamics3、inthedesignofsteelstructure,thestrengthdesignvalueofsteelisthestandardvalueofmaterialstrength,andthecoefficientofresistanceispartial.AnswerDividetheanswer4.Minimumweldsize
3、infilletweldHT,min=1.5,t.AnswerTheansweristhemaximumthicknessoftheconnectingpiece5.Theslendernessratioofacomponentistheratio(expressedinsymbolicterms).AnswerAnswerTwo,themultiple-choicequestions(1pointspergame,10points)1,thedesignstrengthofsteelisdetermined.(A)proportionallimit(B)elasticlim
4、it(C)yieldpoint(D)ultimatestrengthanswerAnswerC2.Steelundergoesstrainhardening(strainhardening).(A)increaseinstrength;(B)plasticityincreased(C)thecoldbendingperformanceisimproved(D)solderabilityincreasestheanswerAnswerA3,theroofrodinthesmallforceoftheabdomen,anditscross-sectionisusuallypres
5、s.(A)allowingslendernessratioselection(B)constructionrequirementsdecision(C)deformationrequirementsaredetermined(D)localstabilitydeterminestheanswerAnswerAThebaseplatethickness,4axialcompressioncolumnisatbottom.(A)determinationofbendingwork;(B)determinedbycompressivework;(C)shearworkdetermi
6、ned;(D)determinationofbendingandcompressionwork;AnswerA5,whenthematerialisQ235-BFsteelandQ345-BFsteel,weldingbyhandwelding,weldingelectrodesshouldbeused.(A)carbonsteelE43(B)carbonsteelE50(C)lowalloysteelE50(D)lowalloysteelE55answerAnswerA6,theaxialcompressionlatticememberincheckingitsoveral
7、lstabilityaroundthevirtualaxis,theuseofconvertedslendernessratio,thisisbecause.(A)theoverallstabilityofthelatticememberishigherthanthatofthesolidmemberofthesamesection(B)considertheeffectofreducedstrength(C)considertheeffectofsheardeformation(D)theeffect
