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38320083(200092)[]2008,,,,,,[]StructuralDesignofLarge2spanPre2stressedTrussShellSystemofBeijingUniversity2tableTennisGymnasiumforthe2008OlympicGamesPAuthors:HeZhijun,DingJiemin,ChaoSi,XiaoXiaoling(ArchitectureDesign&ResearchInstituteofTongjiUniversity,Shanghai200092,China)Abstract:Thepre2stressedtrussshellsystemisanew2stylespatialhybridtensionstructuredevelopedonthebasisofbeamstringstructure.Theapplicationoflarge2spanpre2stressedtrussshellsystemisintroducedincomplexformroofofTableTennisGymnasiumforthe2008OlympicGamesBeijinguniversitygymsindetail,includingroofformdesignofirregularcurvedsurface,thecharacteristicoftheroofstructuresystem,loadscalculation,initialtensionanalysis,staticperformanceanalysis,dynamicanalysisandnonlinearbucklinganalysis.Finally,elasto2plasticanalysishasbeenperformedfortheanchorjointofthecableonthebottomchordofthetrusses.Theanalysisproceduresandresultsmightbeusedasreferencefortheanalysisanddesignofthiskindofstructures.Keywords:pre2stressedtrussshellsystem;formdesign;initialtensionanalysis;staticperformanceanalysis;nonlinearbucklinganalysis12008,,26900m2,8000(2000),(1),9312m72m,4m,616m,2114m,2815m7m,24m,3313m,,,1,,,,2,,55,NURBS(Non2uniformRationalB2splines)[1,9],,,,,(1)7m,24m,,NURBS3313m,2613m,,2815m2114m,2114m,,2815m(2),,,,(3),,,23,,NURBS,,(4),,,,(5),,,,,4NURBS53,,(6),32,(),,64m80m;2613m24m2m5m,,,,,215m,,,32,,2213m26m4m,,,,,,,;,,,,,115m,42620,2038,,,9m,6524m7m,2m2m,1596,,,65m,,,,(6(d))6,324,28,y,x,,,,,70mmQ345B,2,1670MPa,1515,60mm4411016kNPm2,110kNPm2015kNPm212kNPm,412(GB500092001),500140kNPm2,413,,C,500145kNPm2,,,(GB500092001),,[2],1120,,,(),,3130kPa,270,270,27077270,,,75118414(GB502232001)(GB500112001),,8,012g,,,,Tg=0145s8,415(GB500092001),(+)40,551180m64m,,,,;,,;,,:,,,70mm,,,,;,SAP2000ANSYS,,E=2106105NPmm2,013,111710-5SAP2000Frame,Frame,LinkANSYSBeam44,Link10,Combin39512,3[427](1),(2),,,(3),,,,,,500kN,168173NPmm22918mm,16109mm+40,,47181mm120mm-40,,30117mm,30124mm+40,398116kN,38mm,,30117,47181mm,,70mm,38mm,12413mm,LP400=6400P400=160mm,L=34749mm,398116kN,=82144mm,PL=1P422,,,500kN513,,,,;,,,,,,,,,,,85,15131mm,9mm,1P17001P2888,,,xy,xy,,,,,,,,,,:,514,,,,,110+110,12196;110+110,14102,,,,;,,[8],,6,,515,,,,:ElCentro,ElMonte()[3]5010%10010%195cmPs2260cmPs2,012g,8,8,70cmPs2,0102s,20s,1P2,35cmPs2,,,,,,,RitzCQC,(GB500112001),max8,,vmax1P21(mm)18.465.7411.48ElCentro7.335.9612.08ElMonte11.528.669.6312.907.3514.311,1219mm,,12108mmElCentroElMonte,,,25%516,95,,2P21299140.4902325140.504316880.518418080.6905600.4186426200.781720380.7078245100.6269168820310219120.4860.4030.6051018080.7981115960.308122038219100.7450.75013325160.6616,,,,,40,21912,20310,24516,,,,,19182,9399vonMises,,fy=345NPmm28,,vonMises32014MPa,345MPa,8,,,,150MPa,,80MPa100MPa,,,,150200MPa,1mm,1P245,7,,,,NURBS,,,,,,,,,,,,,[1].[J].,2001(11):71276.[2].[R].2005.[3].[R].2004.[4].[J].,2002,32(2):54256.[5].[M].,1999.[6]HOSOZAWAO,SHIMAMURAK,MIZUTANIT.Theroleofcableinlargespanspatialstructures:introductionofrecentspacestructureswithcablesinJapan[J].EngineeringStructures,1999,21:7952804.[7]SAITOHM,OKADAA.Theroleofstringinhybridstringstructures[J].EngineeringStructures,1999,21:7562769.[8]GANTESCJ.Designstrategiesforcontrollingstructuralinstabilities[J].InternationalJournalofSpaceStructures,2000,15,(3&4):1672187.[9],.[J].,2008,38(2).06