北京财富中心二期办公楼超高层结构体系设计研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1,100020;2,100020)[]265m,A,8+115,,,,,,,,,,,,,[];;;;;;Designandstudyonsuperhigh2risestructuralsystemofBeijingFortunePlaza2officetowerGomanHo1,LiuPeng1,YinChao1,RobinChing1,MichaelLiu1,ZhuLi2(1Arup,Beijing100020,China;2HKI,Beijing100020,China)Abstract:TheBeijingFortunePlaza2officetoweris265mtallandwillbecomethesecondtallestbuildingaftertheCWTC3AmegatowerinBeijingatintensity8seismiczoneandthetallestbuildingadoptingcompositestructuralsystemcomposedbyconcretefilledtubeframeandconcretecore.Thelength2to2widthratioiscloseto115,butunfavorableinfluencecausedbytorsionaleffectissuccessfullyreducedbyarationalcontrolonthestructurallayout.Fourstrengthened2storieswithoutriggersandbelttrussesareinstalledtoprovideadditionallateralstrength.Compositesteelplatewall(CSPW)isadoptedinthelowerlevelofthecoretoincreasethelateralstiffnessandenhanceseismicperformanceeffectively,atthesametimereducestheselfweightwiththinnerwallaswell.Largediametercircleconcretefilledtube(CFT)columnisusedintheperimeterframealongoverallheight,thusgreatlyreducesthesectionsizeandtheamountofsteelconsumption.Basedontheelasticandelasto2plastictimehistoryanalysis,theeffectivemeasuresaretakentoresistthesignificantinfluencefromwhiplasheffectforthetallandslenderstructurecausedbyhighordermodels,thusenhancedthestructuralsafety.TheseismicdesignofthetowerhassatisfiedtheadditionalrequirementsbyexpertpanelreviewbasedonthegeneralChineseseismiccodes.Thestructuralschemeandmemberselectionreflectcomprehensiveeconomicadvantagesinaspectofsteeltonnage,fireproofandwindcomfort,etc.Thus,theconstructioncostissuccessfullydecreased.Keywords:compositestructure;strengtheningfloor;expertpanelreview;concretefilledtube;compositesteelplatewall;outrigger;belttruss:,,,,,,,Email:[e-mail]1,,,(),,517m2,265m,59(61)4,,164m4115m,,(JGJ32002)[1](),28150m,115m,77%,[2],[3]2;;8[4];012g,;1©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(0137s);0104;w0=015kNPm2(100);D;,,C60(C50),C40,HPB235HRB400;Q345GJQ345,C60;Q345GJ,HQ345Q345GJ331126113,1611,,,,,,,:21():2312,,,,4213m1519m(44),3418m1511m(45)(1200600mm),,,,1000mm,35mm,,,3133,,6m,,H,,,,3314,4,,,2,3,,550()900()60()40(),315,,,5130mm,200mm316,[3,527],,12©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4]4147,,,,,3©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(ETABS)8,X,,Y,7(SATWE)8(ETABS)415,,,X,Y9,65%,80%,,,,,,94161%,10010122mPs2,100125mPs2,,,55112,220%,[1]10X,Y,20%(012V0)115115VmaxVmax,,8,11[5],012V0115Vmax10,X,Y115Vmax,,,012V0115Vmax[8],512,,,;4©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[9211]12(X)661112,1P4471P556,,,,13,,,,,,,,,,,U,1413(2,3)612,;,,12,,;,,613515s,,,(9)15(a),,,,,,,(15(b))5©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[12214]7112,16,16(CSPW),,P,SRCP,17(a)16,,[15],,,18(a)71216,17,,,(),17,(19(a)),19(b),(c),6%,18713,,,,,18(b),6©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[16]ATC40[17]LS2DYNA,2+,,,,,(CECS28:1990),,FEMA356ATC405%,ETABS,,,20,3,X,Y,1P100209(1)2,,,,,,,012V0115Vmax(),;,,,(2),,,,,,,(),,,,(3),,,7©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(4),,,,,,,(5),,,,,(6),,,,,(7),,,,(8)200m8,A,8,+,,,,,,(),,(),:(),[1]JGJ2002[S].:,2002.[2],.[M].:,2005.[3][S].2003.[4]GB500112001(2008)[S].:,2008.[5],,.[J].,2004,37(1):126.[6],.[J].,2005,38(1):129.[7],.[M].:,2006.[8][C].:[2008]()014.[9].(3)[M].:,2003.[10].[C]PP2004,2004:33239.[11].[J].,2003,35(S1):27230.[12],.2[J].,2002,32(11):42246.[13],,.[J].,2007,27(5):80287.[14],,,.2[J].,2008,38(6):126.[15].2()[R].2007.[16]FEMA356(2000)PrestandardandCommentaryfortheSeismicRehabilitationofBuildings[S].FederalEmergencyManagementAgency,Washington,D.C.[17]ATC40SeismicEvaluationandRetrofitofConcreteBuildings[S].AppliedTechnologyCouncil,1996.(39),,,(3),:,[1],,.[M].:,2003.[2],,.[M].:,2008.8