超高层框架柱方案选型及钢管混凝土柱设计要点

25,320099WORLDEARTHQUAKEENGINEERINGVol.25No.3Sep.2009:2009-05-18;:2009-08-04:-(PHR200907126):(1979-),,,,.E2mail:[e-mail]:1007-6069(2009)03-0039-071,2,2(1.,100020;2.,100044):,,,,,,,,,,:;;;;:TU318;TU392;TU56:ASchemeselectionanddesignmainpointsofconcretefilledtubecolumnsforsuperhigh2risebuildingsYINChao1,ZHANGYanxia2,WUHui2(1.Arup,Beijing100020,China;2.BeijingUniverstyofCivilEngineeringandArchitecture,Beijing100044,China)Abstract:InrecentyearsacircleCFTcolumnisadoptedinstructuraldesignmoreandmoreforsuperhigh2risebuildingsinChina.Itshowssignificanttechno2economicmeritsinviewofitsexcellentmechanicalperformanceandconvenientconstructionfeature.BasedonthecomprehensivecomparisonbetweenCFTandSRC,suchastheduc2tility,capacityandsoon,thetwoelementoptionsusuallyareadoptedinthestructuralcolumndesignofthesuperhigh2risebuildings,thearticlepointsouttheuniquefeaturesofCFTcolumnandemphasizesitssignificantmeritsforapplyinghigh2risebuildinginseismicregion.Further,fortheCFTcolumn,generalintroductionandcompre2hensivecontrastregardingsometypicaldesignandconstructionissues,suchasseismicductility,beam2columncon2nection,concretepouring,fireproofpaintetcaregivenbythecombinationwiththelatestprogressofthetheorystudyandengineeringpractice.ThereasonableCFTcolumnstructuraldesignmusttakethefollowingfactors,inclu2dingseismicrequirement,constructionqualitycontrol,engineeringprogressandcostcontrol,especiallythecharac2teristicsofgivenproject,intofullconsiderationtoformasystemicdesignfinally.Designsuggestionsaregivenforthereferencebaseontheintegrationofthemultifactorabove.Keywords:concretefilledtube;steelreinforcedconcrete;superhigh2risebuilding;penetrationconnection;con2creteLift2upPouring(CFT,ConcreteFilledTube),,,,,,,,,,[1-3],,,,,,,,,,1,,[4],,,1,,,67822.1(CFT)(SRC),1Fig.1ExamplesadoptingcircleCFTcolumninsuperhigh2risebuilding,,,,2.2,,,,121SRCCFTTable1ParameterscomparisonformechanicalperformancebetweenSRCandCFTcolumnSRCCFT1300mm1300mm4.24.2Q345GJQ345GJC60C607.56%()7.54%22Fig.2Sectionmodelofthetwoselectedschemes0425,,,EA,,EI5.72109Nm2,EI8.51109Nm2,1.49,,32(),-[6],1,=Aa=fa/(Acfc)=0.92,C60,=1.56N0=0.9Acfc(1+)=80.1MN,=1.8;3CFTSRCFig.3Compression2bendingcapacitycomparisonbetweenCFTandSRC2012MNm,,Nu=1cN0,1e,1=1.0,,;,,-3,,,3,,,,,CFT80.3MN,SRC64.2MN,25%,[7],,,,2,,N-M,,,,,,,,,2.3,,,-,,,,,-p-,,,;,,,2.4,,4(a),,,,,,,143,:(a)SRC(b)CFT4SRCCFTFig.4Typicalbeam2columnconnectioncomparisonbetweenSRCandCFT5Fig.5SectionaltransportandhoistingonsiteforCFTcolumn,4(b)5,23,,,,,,,,,,,:2Table2ComprehensiveperformancecomparisonbetweenSRCandCFTSRC,;;;,;;,,();,,;,3,3,66Fig.6ConstructionalplanofCFTcolumnandsteelbeamconnection,6(a),,,,,,,,,4(b)7,,,6(b),,,8,,,1m,24257Fig.7Outerringconnectionadoptedincomplicatedobliquecrossingbeam2columnconnection8Fig.8InnerringplateforcircleCFTconnection,6(c),(),,,[8],,2.83,3.76,4.37,,,,,,,:9[8]Fig.9CFTbeam2columnrigidconnectionwithflangeandwebplatepenetrationandthehysteresisloop3Table3ComparisonofdifferentCFTbeam2columnconnection,,4,,,,:(1),(2),,,,()(),,,343,:,,,,,,,,,,,,,,,,,44Table4Mainfactorsaffectingthecooperationoftubeandconcreteinsideandthepreventionmeasures;;;;52(1),,,;(2),,,,,,,,10,,,,,,510Fig.10Concretelift2uppouringmethodforCFTcolumnandthepouringhole5Table5Comparisonofdifferentconcretepouringmethods;,;,;,;;;;;,6()()2,,,4425,,,,,[9]3,[10],,,,[11],(),(1.3m,4.2m),3,13,9mm,,,,,,,,,7,,,,,,,,,,,,,,,,;,;,;(),;(),;(),,,,,,,,,,,,,,:[1].(3)[M].:,2003.[2].[M].:,2003.[3],.[M].:,2004.[4].[C]..:,2004.[5].[J].,2002,(1):3-8.[6]CECS230:2008,-[S].:,2008.[7]JGJ138-2001,[S].:,2001.[8]TamboliAR(Editor).HandbookofStructuralSteelConnectionDesignandDetails[M].McGraw.Hill,1999:502.[9]GB50045-95(2005),[S].:,2005.[10]CECS159:2004,[S].:,2004.[11]CECS200:2006,[S].:,2006.[12],,.[J].,2001():60-64.[13].[J].,2005,22(1):53-55.[14].C60[J].,2007,29(11):865-867.[15].-[J].,2005,35(11):17-21.543,: