鋼框架側(cè)板加強(qiáng)型焊接節(jié)點(diǎn)斷裂性能分析.pdf

1、青島理工大學(xué)碩士學(xué)位論文鋼框架側(cè)板加強(qiáng)型焊接節(jié)點(diǎn)斷裂性能分析姓名：宋永杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：劉蕓201206青島理工大學(xué)工程碩士學(xué)位論文AbstractForalongtime，thetraditionalbeamcolumnconnectionsareusuallyweldedorboltedandweldedmixedrigidconnection，however，theearthquakeofNorth

2、ridgeinAmericaandKobeinJapan，lotsofbeamcolumnjointsproducedabrittlefractureAftertheearthquake，somescholarsputforwardakindofreinforcedbeam—to。columnwhichisoneofthetypicalformstomoveplastichingeoutwardfromthebeamandcolumni

3、nterfaceconnectionsSideplatereinforcedconnectionisbasedonthebeam—columnconnectionthatsgengthentheflangeunderthelocalsectiontomaketheplastichingeshifttoimplementdesignthinkingof’strongjointsandweakmembersincodeforseismicd

4、esignofbuildings，itwillavoidtheplastichingeinpoortoughnessofweldjointsandensurethatthejointshaveenoughductilityHoweverexperimentshavefoundthatthesesnewstyleconnectionsproducedmorecracksinclosedbuttweldofsideplateandflang

5、eofbeamInordertopreventthesenewstyleconnectionsbrittlefailureduringstrongearthquakes，thispapercombinestheresultsofthelow—reversedcyclicloadingtesttoearlyonaninvestigationbystressandstrainInthispaperweconsidertheweldingre

6、sidualstressinthebeamcolumnconnections，thermalelasticplasticfiniteelementtheory，heatstructureofindirectcouplinganalysis，usingANSYSanalysisprogramtosimulatetheweldingstressandstrainfieldofthetwosideplatereinforcedconnecti

7、ons，andcomparedwithtestresultswithandwithoutconsiderationofweldingresidualstressmodelOnthebasisofthestudyofnewstyleconnections，consideringtheinfluenceofweldingresidualstressofthesideplatereinforcedconnectionsThen，thebeam

8、。columnflangebuttweldandsidesofthebeamflangebuttweldreinforcedsteelframeisconsideredinthecyclicloadingunderlowcycleperformanceandthehystereticbehavioranalysis，andevaluatedthebehaviorsofoverallmechanicalproperties，atlast，

9、wewillanalysistheweldingresidualstressindifferentplacehowtoinfluencethepropertiesofthejointsThispaperalsointroducesfractureperformanceevaluationtothekeypartsthatareeasytocrackItindicatesthatsidewidenedflangeendisthekeypa