鋼框架梁柱剛性連接節(jié)點抗震性能的有限元分析比較.pdf

1、北京工業(yè)大學(xué)碩士學(xué)位論文鋼框架梁柱剛性連接節(jié)點抗震性能的有限元分析比較姓名：陳鹍申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：王海忠20080401北京工業(yè)大學(xué)工學(xué)碩士學(xué)位論文ABSTRACTTheresistantearthquakepropertiesofsteelstructurearesuperiortothosestructuresmadeofothermaterialsAmongsteelstructures，steelfram

2、estructuresalwaysthoughtforonekindofperfectaseismaticsystemsSteelframestructureshavebeenwidelyappliedinengineeringfield，especiallyinthoseregionswhereearthquakeshappenfrequentlysuchasAmericaandJapansincetheseventiesofthet

3、wentiescenturyDuringthe1994Northridgeearthquakeand1995Kobeearthquake，howeverthetypicalbeamcolumnmomentconnection(boltedweldedflange)insteelmomentresistingframesufferedunexpectedbrittlefailuresAfter1994Northridgeearthquak

4、eand1995Kobeearthquakemanystudiesonthebehaviorofbeam—columnconnectionsusesinsteelmomentresistingframeandtheireffectonseismicbehaviorofsteelframeshavebeencarriedoutThispaperpresentsacontrastiveanalysisonthebehaviorofsingl

5、enormalsteelbeamcolumnconnection，dogboneconnectionandopeningonbeamwebconnectionFurthermore，acomparisonbetweentheseismicbehaviorsofsteelframeswiththefirsttwodifferentkindsofconnectionsalsogivenThispaperconductsfiniteeleme

6、ntanalysesofperformanceofsinglenormalsteelbeamcolumnconnection，dog—boneconnectionandopeningonbeamwebconnectionbytheprocedureANSYSItisfoundthattheductilityofdog—boneconnectionsisbestandtheopeningonbeamwebconnectionissecon

7、dUnderlowcycledreversedloading，theenergydissipatingcapacityofdog—boneconnectionisbetterthannormalconnectionandopeningonbeamwebconnectionThepapermadee1plasticfiniteelementanalysisonthejointsonwhichweakeningparameterschang

8、eandtheeffectofthechangesofweakeningparametersonjointpropertieshasbeenanalyzedfromtheaspectofstressandstraindevelopingonkeypositionFinallyscaleofidealweakeningparameterswasreachedanddesignmethodofdog—bonejointsWassuggest

9、edbasedontheresearchresultModalanddynamictime—historyanalysiswasmadeonnormalconnectionanddogboneconnectionItisfoundtherigidityofdogboneconnectionisslightlysmallerthannormalconnectionbutdogboneconnectionCanimprovesseismic