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ID:9021116
大小:1.05 MB
页数:7页
时间:2018-04-15
《侧向支承作用下简支钢梁整体稳定性研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、۽ӱഡ࠹GrainDistributionTechnologyҧཟᆦӵቔႨ༯ࡥᆦۑਃᆜุ໗קྟ࣮ਾཬđഽ༵ၿčᇏਁ۽ӱ॓čᆢᇜĎႵཋ܄ඳđᆢᇜ450053ĎᅋေğЧ໓۴༵൮b࣮༢ਔྛࣉିྟק໗ุᆜൈӵᆦཟҧਆႵჸၴ൳ਃۑྙ۽ᆦࡥؓऌିਈק໗ุᆜਃۑ༯Ⴈቔোᄛހ҂ᇕਔđটԛ౼ֆ؍ਃᇏϜđჰمਢࢸຕइĠఃՑࢺകਔ/FUIFSDPUބ5SBIBJSࡹၰॉ੮ਃ؍ཌྷჿඏིႋ࠹ෘٚمčࡥӫo/5مpĎbҐႨ"/4:4Ⴕཋჭٳ༅ೈࡱđ۴ਔෘ࠹܋đ߄эোᄛހaൔྙ૫ࢩaࡱ่ӵᆦཟҧః੮ॉđਃۑᆦࡥNູॴሹؓؓ༅ٳݖ๙đ༅ٳбؓਔྛࣉᄛހ
2、ࢸਢק໗ุᆜෘ࠹مٚᇕؓުಖb༅ٳ౷౹ᆴᆘหਔྛࣉఃؓđਃۑбࡎਔਆᇕંٚم࠹ෘࣚބൌႨྟbቋު۴ऌႵཋჭٳ༅ࢲݔđކਔડॴनހᄛቔႨaॴᇏࠢᇏހᄛቔႨaᆦӵԩࠢᇏހᄛቔႨ༯ۑਃིຕइ༢ඔ࠹ෘ܄ൔbܱՍğҧཟᆦӵĠหᆘᆴ౹౷ٳ݂߭Ġඔ༢इຕིĠ༅ٳ༅StudyonOverallStabilityofSimplysupportedI-sectionSteelBeamWithTwoLateralBracingforitsCompressionFlangeLiuXiaopeiđShiXianyinčCOFCOEngineeringċTechnologyč
3、ZhengzhouĎCo.đLtd.đZhengzhou450053đChinaĎAbstractğThethesisđwhichhasasystematicstudyontheoverallstabilityofdualaxlesymmetricI-sectionbeamwithtwolateralbracingforitscompressionflange.Firstđinaccordancewiththeenergymethodtheoryđthethesisđtakingmiddlesectionintoconsiderationindependen
4、tlyđdeducesthecriticalmomentofgirdernsoverallstabilityunderthreedifferentloadtypes.NextđthethesisintroducesthecalculationmethodwhichconsidersmutualconstrainteffectofbeamsectionsproposedbyNethercotandTrahairčhereinafterreferredtoasoNTmethodpĎđThethesisđmainlyadoptingANSYSfiniteeleme
5、ntanalysissoftwaređcarriesouteigenvaluebucklinganalysison144girdersconsideringthelateralbracingconditionsandchangesofcrosssectionshapeandtypeofsimplysupportedsteelbeamwithtotalspan15m.carriesoutcomparativeanalysisonthecriticalloadofoverallstabilitycalculatedbythethreemethodsđthroug
6、hwhichtheauthorevaluatestheaccuracyandpracticalapplicabilityofthetwotheoreticalapproachesđThethesisđfitstheformulaforequivalentmomentcoefficientofgirdersunderdifferentloadtypesđi.e.fullcrossuniformlydistributedloadfunctionđmidspanconcentratedloadandsupportingplaceconcentratedload.K
7、eywordsğLateralbracingĠEigenvaluebucklinganalysisĠEquivalentmomentcoefficientĠRegressionanalysisᇏщᅣ໓Cğ്ѓང໓3.323UTğোٳğ1007Ē3582č2014Ď04Ē0012Ē07ؓཌྷ૫ࢩ۱ᆜളӁѩ၍ҧളჸၴঘ၂ଖղᄛހຓđࡱܒေᇶܒࢲູቔਃۑሇ࢘đՎཋᆴൈđ൳ၴჸളҧཟэྙđൈջڴϰބ൳ൈӫۑਃԛགྷຕാ໗bۑࢲܒഡ࠹ᇏсྶԉٳЌᆣࢲܒބܒࡱᆜุ໗קđఃᇏ൳ၴჸഡᇂҧཟ൬۠ರ௹ğ2014-03-28ᆦӵ൞ิۚࢲܒᆜุ໗קྛᆭႵིծീbݓu
8、ۑቔᆀࡥࢺğਾཬč1986-Ďđଳđᇹ۽Ġህြٚཟ
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