某大底盘双塔超限高层基于性能的抗震设计

43420132BuildingStructureVol．43No．4Feb．2013210029。、、。、、。TU973.2A1002-848X201304-0050-05Performance-basedseismicdesignofalarge-base-slabandtwin-towertallbuildingbeyondthecodeJinRuyuanZhaoWeiGuoJianShiXiaoweiJiangsuProvincialArchitecturalDesign＆ResearchInstituteLtd．Nanjing210029ChinaAbstractTheseismicdesignofalarge-base-slabandtwin-towertallbuildingbeyondthecodewaspresentedusingtheperformance-baseddesignmethod．Thedynamiccharacteristicsandfailurecharacteristicsofthestructurewerestudiedbyelasticcomputationanddynamicelastic-plastictimehistoryanalysisunderdifferentlevelearthquakes．Theresultsshowthatthestructurehasanadvantageofreasonablestressasthetwintowersaresymmetricallyarrangedthustheseismicperformanceofthestructureisgoodandtherequirementofductilitydesignofstructureissatisfied．Itcanfulfilltheseismicfortificationcriterion“nodamageunderminorearthquakerepairableundermoderateearthquakenocollapseunderrareearthquake”．Keywordstallbuildingbeyondthecodeperformance[e-mail]。1。653.6m250m6335m15.0m17.8m21。15060.05gⅢαmax0.0780.04。500.45kN/m21000.50kN/m210%。。1000瑏瑢800⑧。、4.0m1.5m。、、。22.1434．-1236。223.4%1.0m0.5m-1.2m30mm1.0m20mm。C60C45Q345B。2。。21250m3-200m25%231.2436。2.2412、、、3“”。。2.30.450.8、、。。150mm0.25%、0.2%。1。。180mm0.25%。33.1SATWEMIDAS152013。1、。1SATWEMIDAS/s/%1T16.201X6.0719XT25.891X5.7813XT35.312Y5.0956YT45.070Y4.9074YT52.709T2.5388TT62.681T2.4886TX1.341.27Y1.351.42X2.412.77Y3.064.13X1/7851/856Y1/10671/1195X1/5931/620Y1/10391/1087X1.171.14Y1.101.02X1.061.09Y1.021.03。5。。63T135、246。SATWE。2MIDAS24。SATWE2。11.2。X1/593Y1/103933421234MIDASX51.540.110.000.00/%Y0.000.1653.380.19SATWEX18716730.220.09/kNY0.042820754104。7.4。。2USER1USER21USER3435cm/s2、1∶0.85。3365%80%《》GB50011—20012008。/kN3XYUSER12363572.6%2917989.3%USER237280114.5%33939103.9%USER33050993.7%2612180.0%3047593.6%2974691.1%CQC32552326563768034038。X4325434．4X3。3.2、、。0.12。、、。。4。40.870.540.490.400.400.593.35。5Vmax/kN/MPa0.15fck/MPaQ180541.40Q3161991.66Q569431.635.775Q763451.85Q943560.973.4。MIDAS/Building2USER1USER21USER3。、。66“”。5、。“”。5USER26/kNXYXYUSER111/3791/36810640811593421/3831/368USER211/3091/2509293613235621/3071/251USER311/3391/392892209393621/3441/40011/3401/3259618811407521/3421/327352013。6。6USER241-、。。2。3、。4、“”“”。5。。1．J．200636864-68．2．J．200737520-24．3JGJ3—2002S．2002．4．J．20053811-10．5．J．198910621-29．73。xy。2x、y、、。3、。、。。4。1．J．199515422-25．2．J．201032322-26．3．J．2010425609-613．4．J．2010S150-54．5．J．201030537-41．6FEMA273—1997NehrpguidelinesfortheseismicrehabilitationofbuildingsS．1997108-112．7GUPTABKUNNATHSK．Adaptivespectra-basedpushoverprocedureforseismicevaluationofstructuresJ．EarthquakeSpectra2000162367-391．45