鋼框架梁柱頂-底角鋼連接的節(jié)點(diǎn)性能分析.pdf

1、西安科技大學(xué)碩士學(xué)位論文鋼框架梁柱頂?shù)捉卿撨B接的節(jié)點(diǎn)性能分析姓名：郭霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：郭秉山20060418Subject：TheAnalysisofBehaviorofBeam—tocolumnConnectionsJointedbyTopandSeatAngleinSteelFrame。Specialty：StructuralEngineeringName：GnoXiaInstructor：GuoBings

2、hanAbstract(SigⅡatu代)：魚墜旦叢j壘(Signature)Duringthe1994NorthridgeEarthquakeinAmericaand1995HyogokenNanbuEarthquakeinJapan，manyrigidconnectionssteel秘uneswereseriouslydamagedandmanyofwhichwerebrittlefractureattheconnectionsBu

3、tincontrarythesemi—rigidconnectedsteelflamehasbeRercapabilityintransmutationandenergyabsorptionwhichCanresistdynamicloads，sOitbecamethehotspotThetop—andseatangelconnectionjointbelongtoatypicalsemirigidconnectionform，Sese

4、archonbehaviorofsemi—rigidconnectionisnotonlysignificantfortheoretical，butalsoimportantinpracticeBasedonsyntheticallytakingnonlinear(geometrymaterialandcontact)，theboltpretensionandcolumnaxisforcesintoaccount，the3Dmodelo

5、fthebeam—to—columnconnectionjointedbytopandseatangelisestablished，usingthefinite—elementsoftwareANSYS80，theresponseoftopandseatangelconnectionsundermonotonousloadisresearchedonThen6classificationsincluding16specimensarec

6、reatedwitlldifferentparameters，Throughcalculatingbyusingnonlinearfiniteelementprogram，furthersystematicanalysesareputontheinfluentialparametersoffrictioncoefficients，boltpretensionforces，thicknessofangel，lengthofangle，co

7、lumnforces，distancefromboltedgetoanglebackThemainresultofthispaperindicate：(1)Top—and—seatangelconnectionisajointwhosecarrycapabilityandinitialconnectionstiffnessisrelativelyweek，joint’Sdeformiscausedbythedistortionofang

8、elandbollbutthedistortionofbeamandcohmmisslightAnddestructionusuallyOccursonangle(2)Aroundthekeyhole，thestresscentralizes，column’edgeopttoinflectsinlocal(3)ThechangeoffrictioncoefficientsorboltpretensionforcesCan’taffect

9、theperformanceoftopand—seatangelconnectionsSOmuch(4)Theparametersofangelinfluencejoint’SperformancegreatlyWhenthethicknessofangeladded，wholeconnection’ScarryinganddeformingcapabilityandstiflhessareadvancedAndwhenthelengt