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ID:34175086
大小:10.92 MB
页数:47页
时间:2019-03-04
《桥梁微变形监测及其数据处理方法研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、垒!!型旦AbstractBridgemicrodefonnationmonitoringisnotjuStstrIlctIlredefomationmonitoringofbridge.Itisalsoimport柚ttostatusassessmenta11ddevelopdesignt11eoryofbridge.ButtraditionaImonitoringequ.pmentisincreasinglydimculttomeett11egrowingdemaIldforhealtllmonitoringofbrid2es.Micr0defoma
2、tionmonitoringradarsystemisanewlarge-scalestn】cturedefonllationmonitoringtools.Soitsappliedresearchinbridgemonitoringissi印i6cantIyurgent.Ill吐lispaper,micr0defo姗ationmonitoringofbridgeisourresearchobject.ThroughcomparatiVeand蚰alysisbetweenmeasurementmethods,weintroducemicmdefomati
3、onmonitoringradarsystems.AndweanaIyzea11dprocessitsdatab嬲edonitsmeasurementfIe栅esforme如ll印pIicationiIlbridgehealmmonitoriIlg.Thispaperpointsoutthattheaccuracyofmicrodefornlationmonitormgradarisbcttert11肌O.02mmint11edynarIlicmode.AndcomparedwithⅡlepreciselevelinginstmmentinsta.Cic
4、mode,therelativeeHDris1essthaIll0%.Wbthinkthemicrodef.o姗ationmonitoringradarcanproVidereliableresultsofdisplacementmeasurerrlent.IrIordertos01vemeproblemofone-dimensionalmeasurementofdefomlationmonitoringradarandmatcht11emicrodefomationmonitoringdata锄d廿1emonitoringtarget,weeStabl
5、ishmepositiondistributionmodelofmicrodefomlation.Wesuggest也att11ecoveragerateofelementint11emodelisatleast30%and血emonitoringdistaIlceiswim.m50m.Tbtest廿1eapplicabili谚ofmemicrodefomlationmon№rhlgradarin也ebridgehealtllmoIlitorin&weextractrelatedparametersofbridgehealtllstatussuchasd
6、enection,pylondefonnation,frequency,il锄pingratioandimpactflactor.Wbthirll(micr0defomlationmonitoriflgmdarc锄providereliableresultscomparedw弛traditionalinstnⅡnents.At1ast,weexplorepreliminariIythemicr0deforrnationmonitoringradari11theapplicationoft11ea11alysisofbridgedvn锄icchamcter
7、istics.Accordingt0tllef.miteeIementmodelandexperimentaldataoftheXia010ngwallBridge,wecompare肌daIlal)rzeresultofdenectionand舶quency.111erelatiVeerroroftwoorderarldthreeordermodalparameteridentificationresuhsofmeasurmgresultsiswi协in5%.Ithasgoodanastomosis.Micr0defo咖ationmonitoringI
8、BIS—STheheahhmonitoringofbridge¨目录摘要⋯⋯⋯⋯
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