RBS鋼梁設(shè)置加勁肋后的梁柱節(jié)點(diǎn)受力性能研究.pdf

1、青島理工大學(xué)碩士學(xué)位論文RBS鋼梁設(shè)置加勁肋后的梁柱節(jié)點(diǎn)受力性能研究姓名：王春彩申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：李軍201012AbstractThestudyisaboutdog—boneconnectionwhichhasgoodseismicperformance，andthethreeschemesinweaken8teaofRBSsteelbeamsettingstiffenersareconsideredThesa

2、mesizespecimensaremadeforthepseudostaticexperimentundercyclicloadingandthecorrespondingfiniteelementanalysisisdone，tomakesurethereasonableschemewhichcanimprovethebearingcapacityandenergydissipationcapacityInordertoanalys

3、isandresearchclearlytherenamedcommondogboneconnectionSTF0，dog—boneconnection、衍tllapairofstiffenersinthecenteroftheweakenpartisnamedSTF一1，commonconnectionwithtwopairsofstiffeners，arrangedattheboundariesdividingweakenporti

4、onintothreeequalnamedSTF21，withtwopairsofstiffeners，arrangedattheendoftheweakenportionisnamedSTF22Inthisthesis，thenonlinearprogramandanalysismethodarefirstlymadesure，ABAQUSSOfWareisusedtohavenumericalsimulationThroughthe

5、finiteelementanalysis，thestresscontoursandthelastdamagestatesofthefourconnectionsinthecycleloadaregainedandtheload—displacementhystereticcurve，skeletoncurveandmainperformanceparametersintheloadingpointareanalyzedFromthes

6、tresscontours，comparedwithSTF一0，thebearingcapacityofSTF2—2isimproved，thelocalbucklingisdelayed，plastichingeisformedintheweakenpartThisisinaccordwithplastichingeoffshoringintentionsandimprovingtheconnectionbearingperforma

7、nceSTF1andSTF一21havegoodmechanicalproperties，buttheirplastichingeslateralmigrationtocolumnSecondlythepseudo—smileexperimentwithlowcycleloadisdonewiththesamesizespecimen，theregethystereticcurveofloadanddisplacementinthelo

8、adingpointonthebeamendandstrainanalysisdatainthekeypositionThroughtheanalysisofhystereticcurve，thefourmodelsskeletoncRrveandthemainperformanceparametersareshownTheanalysisresultsaregenerallyconsistenttothetestresultsthro