大跨径预应力混凝土连续刚构桥健康监测评估系统研究

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1、重庆交通大学硕士学位论文大跨径预应力混凝土连续刚构桥健康监测评估系统研究姓名：石鹏程申请学位级别：硕士专业：结构工程指导教师：顾安邦;张雪松20090301ABSTRACTWiththedevelopmentofnationaleconomyandtheunceasingconsummationofbridgedesigntheory，thebridgeconstructionspanincreasesunceasingly，thestructureismorecomplexandthemodelingisartisticdaybyday,

2、butthelatentdangerisalsoincreasingalongwithit．Therefore，theworkofmonitoringandtheassessinglargebridgeisespeciallynecessaryandurgent．Atpresent，healthresearchisalsoatthetestingstagetomonitorandassessthelargebridge．UndertheeconomicalandtechnicalpermissionIscondition，howtoreas

3、onablyassessserviceconditionoflarge-scalebridgeisaurgentandsignificancesignificanttopic．Thisarticletakeshealthmonitoringandassessmentsystemoflongspanprestressedconcl．etecontinuousrigid．framebridgeasaresearchkey．IttakesthemainbridgeofYuaolightrailastheprojectbackground，refe

4、rencingconstructedbridgemonitoringsystem，studyingasetofeconomicalpracticalsoftwaresystemonlongspanprestressedconcretecontinuousrigid-framebridge．Theprimarycontentisasfollows·C)Referencedcurrentdomesticandforeignbridgehealthmonitoringaswellastheappraisaltheory,thelongspanpr

5、estressedconcretecontinuousrigid-framebridgeindicatorsystemandthemulti—levelhierarchicalrelationalmodelsbyanalytichierarchyprocessundervariableweightsprincipleareestablished，alsothecomprehensiveaLssessmentmethodofbridgeserviceconditionisproposed，andvariouslevelsindicatorwe

6、ightsaregiventoo．②Theassessmentofcrackandinherentmodalityeigenfrequencyiscarriedontheanalysis，andthecorrespondingappraisalstandardisobtained·③Thehealthmonitoringappraisalparameterselectionprincipleandthetestmethodoflongspanprestressedconcretecontinuousrigid-framebridgearei

7、ntroduced，andthereasonablelayoutschemeofmeasuringpointsisproposed，alsothebridgeonlineappraisalisrealized．④Thefirstfloorindicatorweightscomputationalmethodisstudied，andarelative姒blemethodtobuildstressandthejudgmentmatrixofdeflectionmeasuredpointsweightswhichhasbeenseparated

8、fromartificialsubjectivefactorisfound．(DAccordingtoalgorithmicprogramByC++language，usingV