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3910200910,,,(,100120)[],,,,[];;;StructuredesignandresearchofsteellargespansuspendeddomeofthegymnasiuminSanyaSportsCentreWangBin,ZhangGuojun,WangShu,GeJiaqi(ChinaAviationPlanningandConstructionDevelopmentCo.,Ltd.,Beijing100120,China)Abstract:ThesteelstructureroofofgymnasiuminSanyaSportsCentreisemployedforthedesignandresearchofthelargespanprestressedsuspendeddomestructuralsystem.Theroofstructureiscomprisedofthesingle2layerlatticedshellonthetop,thebottomhoopcableandradialtensionbar,andtheverticalstay2strut.Forthedesign,thefiniteelementmodelisestablishedforthestructuralsteelroof.Onthebasisoftheconsiderationofstructuralfeatureofgeometricmechanics,prestressingloss,andconstructionimperfection,theinternalforceandthedeformationarecalculatedontheultimatestateandtheworkingstaterespectivelysubjecttothecombinationloadcasesfromdeadload,liveload,windload,temperatureandearthquakeload,aswellastheimpactonthestructuraloverallstabilityismainlyanalyzed.Keywords:suspendeddome;bucklingmode;geometricnonlinearity;structuraloverallstability:(19792),,,Email:capdi.gssd@vip.163.com1,76m;,81825m40,,;,,[2]11P816,(1P81P10),89,,Q345B;,,33,60,,1670MPa,PE,610MPa,Q345B,7m,,,Q345B,11946,954,,,,,,25762345,()69kgPm22211,50,111,(GB500682001)11018,,0=111212:(),()0185kNPm2,(),5710kN,()110kNPm2,(),3812kN:0150kNPm2,()110kNPm2,,[5];,,213,,50100,100,1105kNPm2,B,013,016,019,113113,116214,,,,,25215,6,0105g,,Tg=0135s()=0102(),:,216,[4],6%,[6],3%6%3161171217,,,1,2218,MIDAS,ANSYS11135+01981120+0198+0184+1131120+11401120+0198+114+0191018+11401120+114+0198+01911120+1140+0184018+1140+01911120+0198+1140018+0184+113862112(+015)113Ev015Eh112(+015)113Eh015Ev112(+015)113Ev015Eh+0128112(+015)113Eh015Ev+0128110(+015)110Ev015Eh110(+015)110Eh015Ev110(+015)110Ev015Eh+012110(+015)110Eh015Ev+012:Ev,Eh(X,Y),,3,()(),()3,,,6,7,,,;,,,30185014501480155P%31232423P%191617164411,48,,,,4Pmm++481P1583(1P400)++421P1810(1P400)++85501P894(1P400)1P140(1P125)+015+()+4391P1767(1P400)1P778(1P125)6()7PkPa8Pm9Pm961011124129(+015++),,66mm,1P1152(1P400);(+015-+),,40mm,1P1900(1P400),,,413,0147s,,,41011,36,X,Y,Z90%29X,30Y,3Z,,12,,,,414:1);2),,,,;3)(++),85mm,,50mm,;4),,X,Y,Z,,5ANSYS,(JGJ612003),5,5[3],,415,,215(++),:(),,,511,(),,5,,(12);(13);(14);(15);(16)0713,3,15,,,15PkNPkN197064692237825001200700316117161042893539211993250012007003161171519139706469223782850145581031611816105410477546435352500120070031611716103510477546435352725142010252161141610469706469223782850145570041121116102512,,6,(12),;(13),;(14),,,16PmPm14800480050006104346004800500051902480048004800610045000480050006108513,6(13)(76m)1P300,ANSYS,,,16,5149,5137,5129,6110,10100,4176(13),61045,(6),4176,11413m,,01376m,157314%;2112%,,4,5,,,,,6,13(a)14,()10135,6104,514,Q345B1714Pm15Pm344MPa(16mm)328MPa(16mm),6,16,3114,3149,3109,4130,4189,4154,,3,,162,,14,5135,216,01285m,(1P50),61041114%,15,3109,216,51294116%,01520m,(1P50),,,,839MPa,50%;,317MPa,19%,,,515:1),();2),;3),,6,,3;4),;5),;6),6,:(),,[1](1),,,(2)76m,,,,5421588t,8119kgPm2,,,,,[1],,.[M].:,2003.[2],,,.2008[J].,2007,28(6):10221:[3],,,.2008[J].,2007,28(6).[4],,,.2008[J].,2007,28(6).[5]MAKOWSKZS.Analysis,designandconstructionofbraceddomes[M].NanjingJiangsuScienceTechnologyPress,1992.[6],.[J].,2001,7(3):26232.,