鋼構(gòu)件穩(wěn)定性檢測(cè)和加固研究.pdf

1、j蕊蕊驁磐褰j(luò)。I蹇一’蟄’冀◇鼙粼鑫藉釜鞴。：。羔凄≤羔‘鼉。、?！?。、i菇鞴：i玉荔每’譬。蓉謄漤。霧蒸鬻籬。=霎≥毒，≯囂瓠年爹j，!。一■，∥謄譽(yù)；≯≥謄二。。毒一j一AbstractResearchontheNondestructiveTestingandStrengtheningofStabilityofSteelMembersSpecialty：StructuralEngineeringCandidate：WenMeiZh

2、uSupervisor：ProfChangGenDengABSTRACTAsthecollapseofsteelstructuresusuallyresultfromtheinstabilityofsteelmembers，peoplehavepaidmuchmoreattentiontoitnowadaysThispaperhasmadesprimafystudyofhowtotestthestabilityofsteelmember

3、sandstrengthenthemefficientlyThepaperconsistsofthenondestmctivetestingandstrengtheningofstabilityofsteelmembersAboutthenondestmctivetestingmethodofsteelmembersstabilitydisplacementandvibrationfrequencyapproachesalestudie

4、dtotestandassessthestabilityofcompressionmembersThevibrationfrequencymethodtotestandassessthestabilityofsteelbeamsisalsointroducedFormulaeofthestabilitysafetyfactorstoindicatethestatusofsteelmembersstabilityarederivedThe

5、strengtheningmethodsforsteelmemberswithcarbonfiberreinforcedpolymer(CFRP)andsleevedcolumna他introducedBucklinganalysisoncompressionmemberswrappedwithCFRPhasbeenmadetocomparetheinfluencesofimprovingthebucklingloadswithdiff

6、erentCFRPthickness，mode，directionandelasticitymoduleFormulaeoftheequivalentinertiaandstabilitycoefficientsarederivedAndnonlinearcalculationsforcompressionmemberswrappedbyCFRPhavebeencarriedoutConsideringrevisingtheinitia

7、lbendingOrnot，therearetwowaysoftheapplicationofsleevedcolumnstrengtheningmethodFormulaeabouttherelationoftheaxialload，midpointdisplacementandlateralrevisingloadarederivedKeyWords：steelstructure，stabilitynondestructivetes