1(0.32)(0.11)(0.05)(0.20)(0.15)(0.05)(0.12)(0.35)xe(0.3)(0.1)xc(0.55)(0.3)xq1xq3xq2xq=(xq1·xq2·xq3)蚧虔g0S≤R(fd,xcadc,xsads)Z1(1-xe),SR=1.0~1.2,,Z2Z1,。(0.4)Z1GUANGDONGARCHITECTURECIVILENGINEERING201344APR2013No.4JTGTJ21-2011《》,30《()》[(88)11],、、、,。,,,。,1;,。1,2002,42,1055m。45m+70m+45m,K20~K22,(528300):,,,。:;;ApplicationoftheSystemforEvaluationofLoad-bearingCapacityinaLong-spanContinuousPrestressedBox-girderBridgeLiMeng(FoshanShundeConstructionQualityandSafetySupervisionandTestingCenterFoshan528300,China)Abstract:Basedonthesystemforevaluationofload-bearingcapacityinnewspecification,andundertheconditionofnonload-testing,thispaperdeterminestheload-bearingcapacityofbridgebymeansofinspectiononthespot,seriesnondestructivetestingsandcheck-calcuation.Keywords:load-bearingcapacity;evaluation;check-calcuation552(MPa)Kbm()Kbt()53.81.01.08151.51.01.03152.81.01.06152.61.01.05156.91.01.141110.7047.365.10.420.1888.730.1210040.458790.30.450.4210060.1010070.0310080.449386.00.290.287510、0.1193110.117112、0.06100:APR2013No.4201344,,2~4m;16.7m、0.25m,2.4m,0.55m,0.25m;11.9m、0.22~0.45m,0.45~0.65m;0.6m×0.3m,0.2m×0.4m。,16,1m,1.09,0.99m。,f800。3,8mm、15mm45mm(SMA-16)。10,。39m,、,4,:0.5m()+16m()+0.5m()=17m,5m。fj15.24,Rby=1860MPa,Ey=1.95×105MPa。,f200×42。C50;C40、C30。-20,-120、-300;7。22.1JTGH11-2004《》JTGTH21-2011《》,、、,,1,79.4,3。2.2《》。550,2。2.3,,,。DASP-V10,,fmifdi=1.14,1。2.4,,。5,0.04%~0.09%,0.15%,,1。2.5,,。5,-107mV~-184mV,-200mV,,1。2.6,565(kN·m)R(kN·m)Z1(1-xe)R·Z1(1-xe)(kN·m)-20-120-3004866039766523821050781.071124348709273118877981615191.07172825-136944-139755-135140-4887461.07-522958802966578152160611.07171852082917967199921004591.0710749114m4Z11.09,D=2.1xe0.018E=1.88;:,,xc1.0xs1.023(mm)Dne(mm)Dnd(mm)DneDnd4137.7301.2613935.3301.1814037.0301.2313732.2301.0714339.3301.3113832.6301.0914033.6301.1214131.7301.0614135.1301.1714741.5202.0313828.7201.4413429.1201.4613831.6201.5813328.9201.4613228.8201.441APR2013No.42013445,38000~74000Ω·cm,,1。2.7,,,,,,,1。2.8,。、515,33,3,Dne、Dnd,。2.9,,,,0.5mm,34~41mm,Kc()=0.01,1,1。2.10,xq1.0。33.1“”,162。2。、,、23,25kNm3;。3.2⑴,,,,《》7.7,4。①:,577(mm)(mm)(L600×Z1)-2010.78924.31376(MPa)-20×Z1-120、-300×Z119.122.9-2.6-2.922.924.9)“+”,“-”。訴(MPa)訳(MPa)11.4610.6311.5512.0110.3311.0711.9611.4710.6311.4011.5511.4612.0111.9611.4711.40-0.82-0.87-1.03-1.06-0.87-0.823-205,-20()。②:,5,-20()。⑵①:《》7.3.31,sd<Z1sL,-20(),、3a;-20()、3b。6。,-20、-120、-300,(12.01,11.55,12.99)MPa,(11.55,10.82,12.16)MPa,(19.1,22.9,22.9)MPa。(1.05,0.93,1.23)MPa,(2.6,2.9,2.9)MPa;(12.01,11.55,12.99)MPa,(22.9,24.9,24.9)MPa。,,。②:《》7.3.32,:fdl<Z1fL,-20,7。7,-20,,。4,:-20、-120-300。,,,,。[1]JTGTJ21-2011[S][2]JTGD62-2004[S][3],.[M].:,2007[4]JTGTH21-2011[S]:APR2013No.420134458