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1、AbstractSingle-layersphericalreticulateddomeisacommonstructureintheformofthebuilding,whichhasareasonableforce,lightweight,highrigidity,beautifulshapeanddifferenttypesofstructureandotheradvantages,soitiswidelyusedintheworld.Inthispaperbasedonapracticalprojectastheresearchbackgrou
2、nd,thekeytechnologyof20msingle-layersphericalreticulateddomeisanalyzedandstudied.Inthispaper20msingle-layersphericalreticulateddomemembranestmctureisstudied,whichisakindofspacemembranestructure,anditismadeupoftriangularframeandmembranebymechanicalfixingassemblytoformatrianglestr
3、uctureunit,thentrianglestructureunitsformasingle-layersphericalreticulateddomebytheconnectionassemblythroughthebolt・Thesingle-layersphericalreticulateddomemembranestmcturecanbearthecharacteristicsofwindloadandsnowload,greatresistancetoenvironmentalperformance,whichhashighprecisi
4、on,goodstabilityjowmanufacturingcostandconvenientinstallationcharacteristicsandsoon.Thesingle-layersphericallatticedshellwithslenderstructuresandpoorrigidity,thenodeconnectionnotonlyhavehighmanufacturingaccuracybutalsoensureinstallationquality,andtheselectedfilmmaterialandtheste
5、elstructureisdifficulttofixedbysplicing.Throughthecharacteristicsofdifferentshellorgridstmcturenodeconnectionpatternareanalysedtolaythefoundationforresearch.Andtheoptimalsectionsizeofthememberisdeterminedbyfluidstructurecouplinganalysis.Accordingtothestructuralcharacteristicsofs
6、ingle-layersphericalreticulatedshells,andanalysisofthespatialgeometricrelationshipandtheidealtriangleframe,thetheoreticalbasisisprovidedfortheresearchofspecialtriangularframeweldingfixture.Throughalotofresearchonthefixedmodebetweenthemembraneandtheframe,afilmprogramisdevelopedwh
7、ichensuresconvenientassemblyofmembranematerialsandmembranepretensionandimprovestherigidityandbearingcapacityofthesphericalshell.AndtheuseofANSYSWorkbenchdeterminestheinitialpretensionmembrane.Bymeansoftheanalysisfortheinstallationprocess,thereasonableinstallationschemeisdrafted・
8、20msingle-layersphericalreticulateddomeofpracti
