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上海交通大学硕士学位论文大型桥梁结构健康监测与安全评估姓名：严斌申请学位级别：硕士专业：建筑与土木工程指导教师：王建华;冯卫星20050601HEALTHMONITORINGANDSAFETYEVALUATIONFORLONGSPANBRIDGESTRUCTUREABSTRACTMoreandmorelarge-spanbridgesarebuiltaccompanywiththesocialadvanceandthedevelopmentofcivilengineeringtechnology.Itisveryimportanttoproceedhealthmonitoringandstateevaluationforlarge-spanbridgesinordertoensuretheusedsafetyanddurabilityofdesignreachingthepredictivestandard.Accordingtothepresentstate,theWuhuChangjiangriverbridgeisresearchedasexample,structureanalysisandsensoroptimizinglayoutisproceededandthesystemoflong-timehealthmonitoringandstateevaluationisbuiltup.Thespecificresearchcontentsareasfollowing:First,finiteelementmodelsuitableforstructureanalysisisbuiltupandthemodelamendmentisdonesubsequent,themodeloftheWuhuChangjiangRiverBridgecontainstwosections:oneisthecontinuousbridge,theotheristhecable-stayedbridge.StaticanalysisanddynamiccharacteristicoftheWuhuChangjiangRiverBridgeisdevelopedaccordingtothedesignloadonthefoundationoffiniteelementmodel,andthesensoroptimizinglayoutisdonesubsequent.Second,theoverallplanoflong-timehealthmonitoringisdefinedbasedontheprofoundresearchofthecompositionoflong-timemonitoringsystemoflarge-spanbridges.Themonitoringitemandmonitoringcontentsaredefinedaccordingtothespecificdemandofhealthmonitoringandstateevaluation.Asystemoflong-timehealthmonitoringandstateevaluationagainsttheWuhuChangjiangRiverBridgeisbuiltup.Finally,healthevaluationmethodbasedonstatistictreatmentisextractedforthelong-timehealthmonitoringsystemoftheWuhuChangjiangRiverBridgeaftertheprofoundresearchondifferentstateevaluationmethodisfinished.PreliminaryevaluationofthehealthstateoftheWuhuChangjiangRiverBridgeisrealized.KEYWORDS:theWuhuChangjiangRiverBridge,healthmonitoring,stateevaluation,system,structureanalysis,sensoroptimizinglayout200510520051052005105119401171996219991420008271622210521m5681m180+312+18033.20.5770.11153144M22,3,,,,,,(),,()20501726mFM1624mGreatBeltEast[1]l543mTampico[2]530mSkamsuder[3]LantauFixedCrossing[4]4[5]2080[6].5(1)[6](2)[78](3)(4)[9](5)MACCOMAC[10](1)MAC()COMAC()[11])()MACCOMAC6WD(WignerDistribution)(2):;:():HajelaSoerioBannanHjelmstadSanayeiSaletnikSanayeiImbaro(3)7MasriPandeyBarairaRajagopalan32040--5060--70()8020701994Natke()82070197519791977197819801982BS540020801987()()19901984(GBJ6884)1989(GB/T502831)()9(1)(La-place)(MonteCarlomethod)(2)(AnalyticalHierarchyProcessAHP)A.L.Sany2070AHP10AHP(3)[12,13]5(4)[14]2070JohnHolland5[15-17]Brotonne(JC)MonteCarloJC(artificialneuralnetwork)[18,19][16]BPBrotonneBP11BPBP[19]X1BPPrMonteCarlo(1)3dBS5400(2)1965L.A.Zadeh[20,21]12[23](1)(2)(3)(4)13(1)(2)(1)(2)(3)(4)1410520.97m5681.20m2193.7m120+2144+23144+180+312+180+2120180+312+1801412.51280010601240700110041.821.7122.32.75151356107621611480M22121661.35E0xyz2746194434(678)4(8)3350E3.5l06MPa6/1=m1718471100mm81115mm6614C6212345672191234567-8.2-23.7-15.5-12.3-33.1-20.84.1E0A1-15.5-23.7-8.2-20.8-33.1-12.34.10.83.52.74.19.85.7-7.1A9E102.73.50.85.79.84.1-7.13.88.24.41.54.537.1E10A114.48.23.834.51.57.116.435.218.822.447.424.9-9.1E8E1018.835.216.424.947.422.4-9.115.633.217.622.146.324.2-10.7E10E1217.633.215.624.246.322.1-10.7-6-12.9-6.9-8.3-17.7-9.43.6A9A11-6.9-12.9-6-9.4-17.7-8.33.6921.412.44.911.36.410A23A2512.421.496.411.34.910-12.3-32.8-20.5-10.2-26-15.8-2.7A23E24-20.5-32.8-12.3-15.8-26-10.2-2.71A23A25A47A492E0A1A910E10A11E8E10E10E12A9A11A23A25A23E24197m855(a)5(b)5(c)205(d)5(e)5f5(g)5(h)785()()()(1)(2)21(3)(4)6Figure6Finitemodelofcable-stayedbridgeacrossWuhuChangjiangRiver220793316.01=f3316.01=f2346094.02=f46094.02=f51004.03=f51004.03=f(1)(2)Hzf33165.0=24MACMichiganHolland(1)(2)(3)(4)CameDohnmann(Visualization)(Robustness)251()()Kammer(EffectiveIndependenceMethods)Liu&Tasker2()()3(1)(2)26(1)27(2)(3)(4)(5)(6)1234(1)(2),28(3)(1)(2)(3)(4)(1)(2)293(3)Q/PE27E28,A27E28A27A28267E27E2812321842282010C8,C’8,11C81212681171282830341864423231862210947616997#16167#1687#8#217#8#429#6#300m634444162828565616;2511281521288491050163464624128225103101234678910511121314120.00+2144.00=408.001.001.003144.00432.001.001.003144.00432.001.001.00180.00+312.00+180.00=672.002120.00=240.001.001.000.750.75985676710#110113112293211Figure11Compositionofsmall-centralizeddispersive-dataacquisitionsystem712n33(1)(2)(3)(4)(5).891-4(6)(7)1056789734(1)BSDB(2)MDDB(3)TCDB(4)SSDB(1)(2)(3)(4)(5)(6)(7)(1)(2)35(3)(4)(1)(2)36(1)(2)(3)(4)(5)(6)(7)(1)(2)37(3)(4)(1)(2)15(3)BusSystem50Hz(4)50Hz(5)50Hz(6)891450Hz(7)1024Hz(1)(2)1002001002003(3)381213Figure12Schematicplanofcommunicationsystem39//401Windows2000LabVIEW7.0LabVIEW(LaboratoryVirtualInstrumentEngineeringWorkbench)7.0UnixWindows14LabVIEWG15UnixUnixTCP/IPLabVIEWUnix(Linux)WindowsWindowsLabVIEWUnix41YesYesNoNo4224Internet(1)(2)(3)(1)(2)(3)(y44y66y88y4310y10mm)(1)241010(2)1030030270(1)(2)441617451246Housner()(NDT)()47(1)(2)48(1)(2)()(1)(2)(3)()49(1)(2)(3)()(4)(BayesianKihANN)()50(1)(2)1.2(3)51(1)(2)527(1)(2)(3)533144m221234(Visualization)(Robustness)5E0A1A910E10A11E8E10E10E12A9A11A23A25A23E2488854BusSystem181mm57mm25mm6mm0.3mm4mm5551260.3mm10mm345,1019791878