鋼管相貫鼓式節(jié)點的承載力研究

1、蘭州理工大學(xué)碩士學(xué)位論文鋼管相貫鼓式節(jié)點的承載力研究姓名：吳霞申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：王秀麗20070601鋼管相貫鼓式節(jié)點的承載力研究AbstractSpatialtubularsimplejointlocatesonmainchord，withwhichseveralbranchesaredirectlyconnectedbyweld，SOthechordsufferscomplexstressstateSomet

2、imesjointrangemayoutrunthediameterofchordduetoprodigiousdiameterofbranchesAnewdrum—typesteeltubularjointisproposedinthisthesisItresolvessuchproblemeffectivelyThisthesismakesuseofnonlinearfiniteelementanalysisbysoftwareAN

3、SYS，analyzestheultimatetensilebearingcapacityofKtypedrum—typesteeltubularjointwhenangleandthicknessofclosearmorplate，thickness，lengthanddiameterofoutertubechangeResultsshowthatreasonableapplicationofdrum—typesteeltubular

4、jointcanenhancetheultimatetensilebearingcapacityeffectivelybeaddedmorebranches，andimprovethemechanicsperformanceofjointTheadvantageofdrumtypesteeltubularjointcouldbeembodiedadequatelyonlyifthering—stiffenerissetonthejoin

5、t，whichisplacedbetweeninnertubeandoutertubeandtransferstheloadfromoutertubetoinnertube，andofferoutertubeout—planesupportTakingtheKtypedrum—typesteeltubularjointforexample，theultimateloadbearingcapacityandstiffnessofrings

6、tiffeneddrumtypesteeltubularjointareanalyzedunderdifferentways，numbers，thicknessandsizeofringstiffener，andcomparedwithunstiffenedK—typetubularjointResultsshowthatsuchjointwithrightringstiffenercanimprovetheultimateloadbe

7、aringcapacityandstiffnessoftubularjointeffectivelySteeltubularoverlappedjointisfrequentlyappliedinspatialstructureTheultimateloadbearingcapacityofKtypeandKKtypedrum—typesteeltubularjointisanalyzedbythenonlinearfiniteelem

8、entanalysisinthisthesisResultsshowthattheyhaveobviousdifferenceofmechanicsperformancebetweenordinarysimplejointandoverlappedjointItshouldbeconsideredrespectivelywhendesigncalculationTheyhavedifferenteffectbetweenwithandw

9、ithouthiddenweldunderdifferentloadmodeBecausetheloadconditioniscomplexinpractice，thehiddenpartsweldedareadvisedTakingtheXtypedrum—typesteeltubularjointanalysis，workouttheultimatetensilebearingcapacityofdrum—typesteeltubu