深圳平安金融中心超高层结构设计

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1、PingAnIFC1平安金融中心1、项目概述2、风工程研究3、地震工程4、建筑结构体系发展与演变5、结构设计21、项目概述3PROJECTGOALS•Createatowerformwhichisnotonlyiconic,butintelligentandenvironmentallyresponsible.•Minimizetheuseofenergyandmaterialsbydesigninganaerodynamicformandefficientstructure.PAIFCisapplyingforLEEDGoldstatus.4Designoverview•Sitelocati

2、on5•Buildingareaandsectionorganization6•Podiumroofterrace•Podiumatrium7•Typicalofficelayout8•TopofTowerobservationdeck9•Architecture,Structure,MEPIntegrationandOptimization–“SwissWatch”102、风工程研究11Aerodynamicdesignofverytallbuildings高层建筑的空气动力设计•Forverytallbuildingsitisimportanttominimizewindloadsorth

3、edesignbecomestoocostly.•对高层建筑设计重要的是将风荷载Importanceofwind尽可能减少，否则其造价会很高loads•VerytallbuildingsareoftenimpactedbycrosswindloadingcausedbyvortexBuildingheightshedding.Thiscrosswindloadingisfrequentlylargerthanthealong-windloading.•超高层建筑的设计风荷载往往受由Wind漩涡脱落所引起的横风向荷载影响Crosswindforcescausedbyvortexshedding1

4、2TestMethod试验方法High-FrequencyForceBalanceTechnique(HFFB)高频测力天平技术SwayFlexureBuildingModelTorsionFlexureinstalledontopofthebalanceHigh-FrequencyForceBalanceForceBalanceModel13TestMethod试验方法FullAeroelasticModelTests气动弹性模型试验ShelltosimulateaerodynamicshapeMetalspinetosimulatestiffnessSpineandshelltogethe

5、rtosimulatemassdistribution14WindProfileSimulation风剖面模拟•Near-fieldsimulation近场模拟:•Proximitymodelthatincludesallsurroundingbuildingswithin600mradiusfromthesiteandsomemajorstructureswithin1200mradius.•包括600米半径内详细建筑物与1200米半径内主要建筑物的场地模型。Far-fieldsimulation远场模拟:Useofspiresandfloorroughnesstosimulateovera

6、llwindprofileandturbulencepropertiesbasedonESDUanalysis.根据ESDU分析结果由尖劈和粗糙元模拟。TargetSiteExampleshowingterrainwith3changesinroughness:n=3Vz03z02z01Terrainz0x>50km3xx21x15WindPropertiesatSite场地风特性WindProperties:MeanwindspeedprofileWindturbulenceprofileTurbulencelengthscale16Buildingmotionsintermsofoccup

7、ants’comfort根据居住者舒适性的大楼振动验算Thepredictedbuildingmotions(accelerationsandtorsionalvelocities)areacceptableforoccupants’comfort.就大楼的居住舒适性而言，预计的大楼振动（加速度与扭转速度）是可接受的。17ConclusionRemarks小结•ThePingAnIFCTowerh