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新型环箍穹顶全张力结构局部断索抗连续倒塌性能分析.docx

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新型环箍穹顶全张力结构局部断索抗连续倒塌性能分析 Abstract Thenewtensionedmembranestructurewithringbeamanddomeischosenasthemainstructuralsystemofmanylarge-spanbuildingsforitslightweight,highstrengthandeconomicaladvantages.However,thepartialcablebreakageofthetensionedmembranestructuremaycausethecontinuouscollapseofthewholestructure,posingasignificantthreattothesafetyofpeopleandproperty.Inthisstudy,thepartialcablebreakagebehaviorofthenewtensionedmembranestructureisanalyzed,andtheanti-continuouscollapseperformanceisevaluatedthroughnumericalsimulations. Introduction Thenewtensionedmembranestructurewithringbeamanddomeiswidelyusedinmanyfieldapplicationsduetoitssubstantialadvantages,suchaslargespan,highstrength,lightweight,andfastinstallation.Thenewtensionedmembranestructureiscomposedofatensilemembraneandacablesupportsystem,amongwhichthecablesprovidetheprimarystructuralsupport.Inparticular,thecablesarearrangedintomultiplelayersandconnectwiththeringbeamanddometoformacontinuousandstablestructure.However,giventhatthecablesaresubjectedtoacertainleveloftension,anypartialbreakageincablesmaycausethecontinuouscollapseofthestructure. Inrecentyears,researchershaveinvestedsubstantialeffortstostudythefailurecharacteristicsandanti-collapseperformanceoftensionedmembranestructures.However,mostoftheexistingstudiesfocusontheoverallfailureofthestructure,whilefewstudieshavebeenconductedtoanalyzethepartialcablebreakageperformanceofthenewtensionedmembranestructurewithringbeamanddome. Inthisstudy,wewillanalyzethepartialcablebreakagebehaviorofthenewtensionedmembranestructure,andevaluatetheanti-continuouscollapseperformancethroughnumericalsimulations.Theresearchresultscanprovidesignificantreferenceandguidanceforthedesignandconstructionofthenewtensionedmembranestructurewithringbeamanddome. Methodology Thenewtensionedmembranestructurewithringbeamanddomeisregardedasafull-tensionsystem.Thecablesupportsystemismainlycomposedofcablegroupsandanchorages,andthetensilemembraneisareinforcedfabricmadeofhigh-strengthandweather-resista