桥梁微变形监测及其数据处理方法-研究

《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．pmentisincreasinglydimculttomeett11egrowingdemaIldforhealtllmo

2、nitoringofbrid2es．Micr0defomationmonitoringradarsystemisanewlarge-scalestn】cturedefonllationmonitoringtools．Soitsappliedresearchinbridgemonitoringissi印i6cantIyurgent．Ill吐lispaper，micr0defo姗ationmonitoringofbridgeisourresearchobject．ThroughcomparatiVea

3、nd蚰alysisbetweenmeasurementmethods，weintroducemicmdefomationmonitoringradarsystems．AndweanaIyzea11dprocessitsdatab嬲edonitsmeasurementfIe栅esforme如ll印pIicationiIlbridgehealmmonitoriIlg．Thispaperpointsoutthattheaccuracyofmicrodefornlationmonitormgradaris

4、bcttert11肌O．02mmint11edynarIlicmode．AndcomparedwithⅡlepreciselevelinginstmmentinsta．Cicmode，therelativeeHDris1essthaIll0％．Wbthinkthemicrodef．o姗ationmonitoringradarcanproVidereliableresultsofdisplacementmeasurerrlent．IrIordertos01vemeproblemofone-dimen

5、sionalmeasurementofdefomlationmonitoringradarandmatcht11emicrodefomationmonitoringdata锄d廿1emonitoringtarget，weeStablishmepositiondistributionmodelofmicrodefomlation．Wesuggest也att11ecoveragerateofelementint11emodelisatleast30％and血emonitoringdistaIlceis

6、wim．m50m．Tbtest廿1eapplicabili谚ofmemicrodefomlationmon№rhlgradarin也ebridgehealtllmoIlitorin＆weextractrelatedparametersofbridgehealtllstatussuchasdenection，pylondefonnation，frequency，il锄pingratioandimpactflactor．Wbthirll(micr0defomlationmonitoriflgmdarc

7、锄providereliableresultscomparedw弛traditionalinstnⅡnents．At1ast，weexplorepreliminariIythemicr0deforrnationmonitoringradari11theapplicationoft11ea11alysisofbridgedvn锄icchamcteristics．Accordingt0tllef．miteeIementmodelandexperimentaldataoftheXia010ngwallB

8、ridge，wecompare肌daIlal)rzeresultofdenectionand舶quency．111erelatiVeerroroftwoorderarldthreeordermodalparameteridentificationresuhsofmeasurmgresultsiswi协in5％．Ithasgoodanastomosis．Micr0defo咖ationmonitoringIBIS—STheheahhmonitoringofbridge¨目录摘要⋯⋯⋯⋯