方盛电厂主厂房框排架结构抗震分析

重庆大学硕士学位论文方盛电厂主厂房框排架结构抗震分析姓名：熊伟申请学位级别：硕士专业：建筑与土木工程指导教师：李正良;钱叶长20051001I90IIABSTRACTSincetheeveningofNineties,theautomatizationlevelhasmadegoodprogressinfirepowerpowerplan.Thecapabilityofsingleunitisgettingmoreandmore,andthesizeofthecentralworkshopisgettinglargerandlarger.Theheightandthespanoftheworkshop,aswellasthedifferenceofhighnessbetweenworkshopsisgettingbiggerandbigger.Thiskindofstructureisbadforanti-earthquakeduetothebiggerdepartureofitscenterofmassandcenterofrigidity.Thestructureisirregularbothinplaneandvertical,andthepowercharacterofthisstructureinthebothprincipalaxesisdifferentalot,so,that’sseismicunfavorable.Now,simplifiedcalculatingmethodsofverticalframeandhorizontalframedbentforplatestructurearemostlyusedinthisstructuredesign.Forthecomplexdistributionofqualityandrigidityofthisstructure,thecalculatingmethodofspaceturningcoupledpairshouldbeconsideredasacomplementalcheckingcalculationforthiskindofirregularstructure.Thisdissertationintroducesthelatesttestandtheresearchfindingsoftheframestructureutilizedinthecentralworkshopoffirepowerpowerplanbyengineeringdesign.Thispaperintroducestheseismicanalysismethodofverticalframe,horizontalframedbentplatestructureandspacestructureseismicanalysisinframedbentstructuresystem.ThispaperanalyzesandresearchesthedesignplanoftheframedbentstructureinthecentralworkshopofFangShengpowerPlant,selectsthemostsafety,economicandproperstructureformaccordingtotheresultoftheanalysisandresearch,mainlyanalyzesthevibrationmodeofframedbentstructure,periodandthestructureearthquakeresponsebycomputerprogramcalculating.Thisthesissummarizesthefeatureofforceacceptingontheeffectofearthquakeinhorizontalforthelandscapeorientationframedstructurethroughcomparedthemembersinternalforceofspacestructurewithplatestructure.Also,itmakessomequalitativeresearchesontheadjustmentfactorofthespaceeffectofthehorizontalframedstructure.Thecontentofthispaperofferssomeconstructiveproposalsandtheoreticalreferencesforthedesigninpracticalframedbentstructure.Keywords:structureofframedbent,seismicanalysis,force-acceptingfeature1111.1-50197519765050112260“—”701051210kN19751976201.290500MW~600MW1.2.1199641997“”“”T-21/KJ97300MW600MW——13•————•10~18.7%•33“”0.3g14•“”“”“”•C60151.2.2600MW“”St1/7I20M224.000C45C40fM0.1g1.2g:0.2g0.6g0.1020.145“”:600MW160.8300MW300MW0.70600MW300MW—1.4~1.7—0.7~0.6GB50011-2001:GB50011-20011.2.37812ANSYS6.1EL-Centro,Taft,Ojma10s50cm/s85%1.3165s1.056s1757%0.8550cm/s2“”(1,(250cm/s2EL-Centro,Taft,Ojma1/1691/9931/783-Өe=1/800(250cm/s.TaftOjma47.9mm69.8mm5Ojma1/518Өe=1/550EL-Centro37.35mm341/11111/1096450cm/s250cm/s250cm/s250cm/s2110-2Ojma(36%181.1EL-Centro11.41.5:(150cm/s2“”(2(31(41.2.4(600MW)“”St1/7I20M224.000C45C402.0004.0006.0501980mmCD3600mmBCCD2000mmCDCø6@100C41:1.5m/s2EL-Centro146KN3m/s2EL-Centro226KN“”::(GB50011-2001Vj190.6KNVcsj296.4KNV37.9KNVcs107.8KN1231101.31.3.1,1.3.2(1)(2)(3)21122.12.1.1677408992.1.2FmSaXgXmF=+=max)(....VdKSKXV==maxSaSdKm212ddaSmKSS==2ωdaKSmSF==FV,ζ=0.05“”789GBJ11-89GB50011-2001{}GBJ11-89{}GB50011-2001(1)6s6s6s(2)12213T≤5TgGBJ11-89GBJ11-89T5TgT=6Tg8915%2.1α-maxα-γ-η1-T-η2-Tg-2.1Fig.2.1Earthquakeinfluencecoefficientcurve(3)TgTg-1890.05s2142.1STable2.1Charactercyclevalueofcharactercyclegroupingofearthquake0.250.350.450.650.300.400.550.750.350.450.650.90(4)0.052.22.20.05Table2.2Maxofhorizontalearthquakeinfluence67890.040.08(0.12)0.16(0.24)0.32-0.50(0.72)0.90(1.20)1.40:0.15g0.30g(5)0.052.11λ-ζ-28/)05.0(02.01ζη−+=1η-003ζζη7.106.005.012+−+=2η-0.550.55ζζγ+−+=5.005.09.02152.22.2.1GB50011-20011(1)1)2)ηb(2)1)902)“”2162.2Fig.2.23)1(3)GB50011-2001“”ηy“”2“”“”“”“”2172.3Fig.2.32.2.2(1)1)Gl0.5G00.5Gwt0.7Gwl1.0(Gf0.5Gsn0.5Gd)(2.1)G0GwtGwlGbGfGsnGd()2)∑∑==•=nrrrnrriiiGHGHGG11'(2.2)(2)1)KKbKwKc=1.1KbηwKw(2.3)KbKwηw7890.60.40.22181.1Kb2)()“”(3)∑∑∆∆=iiiiiiTGGT'2'2ψ(2.4)iΨT780.8590.9Gii()(4)1)ysGFηα••='11(2.5)α1α()ηy1.11.12)ysEnnrrriiiFHGHGFηηδ••−••=∑=)1(1'(2.6)eqEGF1α=∑==nireqGG185.0δn()ηtηy1.31.22.2.32192.32.3.1“”“”“”{u}{x}q∑==mjjjxqu1}{}{(2.7)gjjjjjjuqqq..2...2γωωζ−=++(2.8)}]{[}/{}1]{[}{xmxmxTjTjj=γ(2.9)jζ——jjω——jjγ——jj[m]——gu..——2.82.3.22.3.3(1)jijiFijijjjiGXFγα=),1(niΛ=220ijiijijGXGX∑∑=2/γjα——jTjXij——jijG——i(2)jjiFjSj(MjVjNjUj)EKS∑==mjjEKSS12m——jγTjjαm=3H/BTjjαmaxαjiFSj∑==mijiiFF122.4-1{}GB50011-20011.151.051.32ji3XijYijijϕxyji221xy2.4jiijitjjxjiGXFγα=(2.10)ijitjjyjiGYFγα=(2.11)ijiitjjtjiGrFϕγα2=(2.12)xjiFyjiFtjiF——jixyjiXjiY——jixyjiϕ——jitjγ——jx2.13y2.14x2.15ir——i2.16∑∑==++=niiijijijiinijitjGrYXGX122221)(ϕγ(2.13)2.4JiFig.2.4JNibrationtypeileverearthshakeinfluenceinthepointofNibration222∑∑==++=niiijijijiinijitjGrYXGY122221)(ϕγ(2.14)θθsincosyjxjtjrrr+=(2.15)iiiMJr/=(2.16)xjγyjγ——2.132.14θ——xiJ——iiM——iCQCkmjjmkjkEKSSS∑∑===11ρ(2.17)TTkjTTTkjjkλλζζλλλζζρ2225.1)1(4)1()1(8++−+=(2.18)EKS——jSkS——jk9-15jζkζ——jkjkρ——jkTλ——kj22)85.0(yxEKSSS+=(2.19)22)85.0(xyEKSSS+=(2.20)xS——xyS——y223CiCi∫∫∫∫=iiAiAiidxdymxdxdymx(2.21)∫∫∫∫=iiAiAiidxdymydxdymy(2.22)im——iiA——i0dxdyyxmJiAiio)(22+=∫∫(2.13)CidxdyyyxxmJiiAiii])()[(22−−−+−=∫∫(2.14)ix−iy−Ci32433.13.1.1(1)0.4KN/m2(2)6(3)7(4)(5)B3.1.2AB2424.4A45(1)17.5Q=50T(2)8(3