ChallengesinBridgeEngineeringFromWobblyFootbridgestoAutonomousMorphingofBridgeDecksunderWinds

ChallengesinBridgeEngineeringFromWobblyFootbridgestoAutonomousMorphingofBridgeDecksunderWinds.pdf
Thispaperpresentsasynopsisofchallengesandcandidatesolutionsforbridgesthatrangefromwobblyfootbridgestofuturisticlongspanbridgesequippedtomorphtheirshapeforenhancingtheirperformancetovortex-inducedvibration(VIV),buffetingandflutter.Forwobblyfootbridgesacomprehensiveprotocolfordesigningunderwindsisadvancedbasedonafieldmeasurementcampaignthatreliesonavalidated"citizensensing"tomonitordynamicsofremotebridges.Regardingthemodernlongspanbridgeswithstreamlinesdecksissuessurroundingnonlinearaerodynamicsandtheroleofturbulenceandnon-stationarywindsarehighlighted.Acacheofsolutionsbasedonreduced-ordermodelstocapturenonlinearfeaturesthesebridgesareknowntoexhibitarepresented.Theroleofshapeoptimizationofbridgedecksisdiscussedwithavisionofreal-timemorphingofbridgedeckprofilethroughsensing,optimization,machinelearningandactuation.Thisfuturisticautonomousapproachpromisestoenhancetheperformanceofbridgestooptimalunderarangeofwindactionsthatinclude,VIV,buffetingandflutter.
作者：AhsanKareemNAE
作者单位：NatHazModelingLaboratory,UniversityofNotreDame,NotreDame,USA
母体文献：国际工程科技发展战略高端论坛——第七届桥梁与隧道工程技术论坛论文集
会议名称：国际工程科技发展战略高端论坛——第七届桥梁与隧道工程技术论坛  
会议时间：2017年9月26日
会议地点：杭州
主办单位：中国工程院,北京茅以升科技教育基金会
语种：chi
分类号：
关键词：Bridge  Flutter  Buffeting  VIV  ShapeOptimization  Footbridges  StructuralHealthMonitoring  CitizenSensing  NonlinearAerodynamics/Aeroelasticity
在线出版日期：2019年11月18日
基金项目：
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