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1、华东交通大学硕士学位论文拱式转换层结构试验研究及空间分析姓名：王晓东申请学位级别：硕士专业：结构工程指导教师：张敏20080418AbstractRESEARCHONEXPERIMENTANDSPACEANALISISOFARCHTRANSFERFLOORSTRUCTUREABSTRACTArchtransferfloorisanewtypeoftransferfloorstructure,itsrigidityisgreat,anditsweightislight,thistransferfloorcancrosso
2、vergreatspan,increaseusefulspace,andsaveconstructioncostetccharacteristics.Theaseismiccapabilityistheimportantfactorwhichensuresstructureaseismicsafety.Onthebasisoftheformerresearch,theexperimentresearchoftwoarchtransferfloorstructurehasbeencarriedout.Onehasbeen
3、carriedontheexperimentofverticalloadactionandusedtoanalyzeitsmechanicscharacteristics,suchastheverticalforcereaction,developcrack,deformationstateandfailurepatternetc.Anotherhasbeencarriedonthepseudo-staticexperimentofverticalandlevelreversalload,usedtoanalyseth
4、eload-displacementhysteresisperformance,andtoobserveitsdevelopingcrackandfailurepattern,fromthis,theaseismicpropertieshasbeenresearched,suchashysteresisperformance,energyconsumption,rigidityretrogradeandequivalentdampingetc.Besidesthespacemechanicsanalysisofthis
5、structurehasbeencarriedoutaccordingtotheANSYSsoftware.Researchindictthefollowingconclusion:(1)Prestressraisethebottomchordrigidityandanticrackcapability,decreasesitsdeflectioncausebyverticalload,reducesitscrackwidth,effectivelyimprovesitsuseproperty,andincreases
6、thisstructuredurability.(2)Designofstructureoughttofollowthecriterionof:“weaktheupperparteroftransferfloor,strongtransferfloor,morestrongthesubstructureoftransferfloor”.Designofthearchtransferflooroughttocomplywiththeprincipleof“weaktheupperchord,strongdiagonalw
7、ebchordandverticalchord,morestrongbottomchord”.Designofupperparterofthistransferflooroughttoconformtotheprincipleof“weakbeam,strongcolumn,andsidecolumnweakerthanmiddlecolumn”,whichmayformbeam-hingeyieldingmechanism,andhavegoodaseismicperformancesuchasductilityen
8、ergyconsumptionetc.(3)Whenthearchtransferfloorhigher,thedisplacementangeloftransferfloornearbyhavemorechange.(4)Whenaseismicdesign,thestructureequivalentlateralstiffn
