啞鈴狀螺栓球節(jié)點與圓球狀螺栓球節(jié)點靜力特性比較分析.pdf

1、湘潭大學(xué)碩士學(xué)位論文啞鈴狀螺栓球節(jié)點與圓球狀螺栓球節(jié)點靜力特性比較分析姓名：阮斌申請學(xué)位級別：碩士專業(yè)：一般力學(xué)與力學(xué)基礎(chǔ)指導(dǎo)教師：張平20070510湘潭大學(xué)碩士學(xué)位論文AbstractTheboltglobegridstructurehasnotonlythestrongpointofthegridstructuresbutalsoadvantageofitselfhasbeenacceptedbymemeengineers.Ita

2、lreadyrunstothegreatspanofgridstructuresitsshapeismerichcolfulunconventionalunthodoxwhichadequatelyincarnatetheboltglobenodethathaslifefce.Inthegridstructuretherearemanynodethequantitythatthenodeusesteelaccountfthequanti

3、tythattheallgridstructuresusesteel15~14.Inreasondesignthenodehasimmediatelyinfluencethesafetyofthestructurefactureinstallationscheduleofprojecttheindexofthequantitythatthenodeusesteelthecostofproject.Thechangeofthenode’s

4、shapesizeinfluencethegridstructuresgreatlythedomesticoverseasscholarresearchtheinterrelatedtechnologymeasureincreasinglyconsummatebutstillhasbeenalotofproblemthenodeofgridstructuresistoosmallininstallingwhichinducethepol

5、eclashwitheachotherthejobofinstallissuffocated.Contrarilyinthelargescalegridstructureespecialsculptgridstructureshopdrawingwhichappearsthenodes’diameterismethan300mminvariably.Namelytheballsteelistoolargeitisinfluencedby

6、marketmachininglocaleinstallsoon.Finallythejobofinstallissuffocated.CombiningmechanicaltheieswiththeFiniteelementsoftwareANSYSourwkgroupoptimizethenodeofboltglobegridstructures.Optimizingthenodebyeccentricitywhichsolvest

7、hatthepoleclashwitheachothersavesthequantitythatthenodeusesteelsolvesthejobofinstallissuffocatedsoon.Firstlythisprojectestablishingthemodelofthenodeeccentricityofthegridstructurefreviewingallpolesofthegridstructureduetot

8、henode’seccentricitywhichisinfluencethestressofthepolesthedisplacementofthegridstructure.Analyzingthenodeeccentricityisinfluencethegridstructurewhichsatisfyrequirementintheengineering.Thentheshapeofnodeisoptimizedasdumbb

9、ellusingthesoftwareANSYSwhichanalysesthenodethathasbeenoptimizedstressmeetanemergencyissatisfiedintheengineeringaccountingthesaveofthequantitythatthenodeusesteelbythenodeisoptimizedwhichbringeconomyeffect.Keywds：Boltglob