空間相貫節(jié)點鋼管桁架中受壓桿件的計算長度.pdf

1、西安建筑科技大學(xué)碩士學(xué)位論文空間相貫節(jié)點鋼管桁架中受壓桿件的計算長度姓名：賀喜霞申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：顧強20030401EffectiveLengthsofCompressedMembersinMultiplanarTubularTrusswithSimpleJointsSpeciahy：StructuralEngineeringMasterStudent：HeXixiaInstructor：GuQiangProf

2、essorABSTRACTThetubulartrusswithmultiplanarsimplejointsisusedmoreandmorepopularlyInordertoeustlrethestabilityofthistypeofstructure，bucklingofsinglecompressedmembermustbeanalyzed，whichisrepresentedbytheconceptofmember’sef

3、fectivelengthTherefore，reasonableeffectivelengthsofcompressedchordsandbracesarenecessaryandimportanttomakesurethestructure’ssecurityandtomakefulluseofthematerialsmechanicalpropertyInthedesigncodeofsteelstructureinourcoun

4、trythereareonlyspecificationsabouteffectivelengthsofcompressedmembersinplanetrusswithcommonsections，theproposalsofmembersintubulartrussarenotspecified，Simplejointsinmulti—planartubulartrussusuallyactasconstraintstothecom

5、pressedmembers，whichdecreasethemembers’effectivelengthsThispaperresearchedthecompressedchordsandbracesinmulti—planartriangletubulartruss(includingcircularhollowsectionsandrectangularhollowsections)，analyzedmanyfactorsinf