几种单跨框架结构抗震加固方法的比较

SichuanBuildingScience384201282012-02-271966－。[e-mail]200092、。Midas/gen3。TU352．1A1008－1933201204－160－05Comparisonofseveralseismicstrengtheningmethodsofsingle-spanframestructureWUShannengTANGXiangDepartmentofBuildingEngineeringTongjiUniversityShanghai200092ChinaAbstractAddingframecolumnsbuckling-restrainedbraceBRBandshearwallsarecommonseismicstrengtheningmethodsofsingle-spanframestructures．Inthispapertheseismicperformancesofatypicalsingle-spanframeschoolbuildingafterstrengthenedusingthese3strengtheningmethodsarecomparedbasedontheresponsespectrumanalysisandpushoveranalysisusingthefiniteelementsoftwareMidas/gen．Keywordssingle-spanframestructureseismicstrengtheningresponsespectrumanalysispushoveranalysis0。、、。、GB50011—2010《》1GB50023—2009《》2。、、。JGJ116—2009《》36．2．12-24m、、。Midas/gen3。1412。6.0m2.1m3.6m3.6m。KZ1400mm×400mmKL1250mm×550mmKL2250mm×350mmLL250mm×250mm。、C25HRB335。Ⅳ70.10g。2、、。2．1。?。KZ20613300mm×300mmC25。1Fig．1Architecturallayoutplan2Fig．2Structurallayoutplan3Fig．3Thearrangementplanofnewframecolumns4Fig．4ThearrangementplanofBRB2．2、、BRB。。4、、。41612012No.4。2500mm2300kN。2．3。5150mmC25。5Fig．5Thearrangementplanofshearwalls3Midas/gen1。M0M1M2M3。1Table1ResponsespectrumanalysisresultsunderfrequentearthquakeM0M1M2M3sT10．73X0．69X0．49X0．35XT20．69Y0．57Y0．39Y0．26T30．650．540．340．18YTt/T10．890．780．690．74X1/8821/9201/18461/3529Y1/9301/13431/30001/13846X1．051．011．021．03Y1．001．001．001．00/kNX500565584936Y547610592949/kN·mX52975974614810375Y578063906199104293。1Tt/T10.89。。0.79sTg0.65sTTg5Tg。12。。44．15Push-over。。。Midas/gen。/-/-。FEMA－273ATC－406。4AB、BC、CD、26138DEBIOLSCPC。6FEMAFig．6ConstitutiverelationofplastichingeinFEMAMidas/genPushover×《》5．5．5。M3Y150mm300mm。7X-Fig．7Load-displacementcurvealongXaxisFEMA-2733、、SRSS。。。4．24XYPush-over4XY-78。、、、M0。8Y-Fig．8Load-displacementcurvealongYaxis--Acceleration-DisplacementResponseSpectrumfor-mat17ⅣA-D。4XYPushover2。2PushoverTable2PerformancepointsofpushoveranalysisunderrareearthquakeM0M1M2M3Sa/mm/s2X0．21890．24600．31660．3913Y0．21130．28230．36790．4544Sd/mmX58．4047．3325．6513．31Y53．7736．4512．933．806Vb/kNX1488186923354613Y1547217127515564Un/mmX75．9861．4533．6918．54Y68．8246．7416．645．371XY910。M0M3XY。Y。11～14M0～M3Y。M0、23。M1、233612012No.49XFig．9StorydriftalongXaxisatperformancepointofpushoveranalysis10YFig．10StorydriftalongYaxisatperformancepointofpushoveranalysis11M0YFig．11DistributingofplastichingesofModel0atperformancepointpushalongYaxis12M1YFig．12DistributingofplastichingesofModel1atperformancepointpushalongYaxis2。M2、2、13M2YFig．13DistributingofplastichingesofModel2atperformancepointpushalongYaxis14M3YFig．14DistributingofplastichingesofModel3atperformancepointpushalongYaxis。M32。。5。。。、。1GB50011—2010S．2GB50023—2009S．3JGJ116—2009S．4．TJR．5．PushoverAnalysisJ．200401．46138