钢管混凝土质量的无损检测（nondestructive testing of the quality of steel tube concrete）

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1、钢管混凝土质量的无损检测（Nondestructivetestingofthequalityofsteeltubeconcrete）ExperimentalstudyontheNDTnondestructivetestingNondestructivetestingofthequalityofsteeltubeconcreteXiaoYunFengXian-yanzhou,Zhongnanforestryuniversityofscienceandtechnology,changsha410004).Inthispaper,:comprehensiveappl

2、icationofultrasonicmethod(sound,audio,etc),impactechomethodandsoundrecognitionmethodtodetectcomponentquality.TheresultstableMingUltrasonicmethodcanimprovethedetectionaccuracyandtheabilitytoidentifydefects;Theimpactechomethodcanbeusedtodetectthethicknessofconcretesituation;Soundrecog

3、nitionmethodcanquicklydeterminethedefectlocationofcomponents.Middleimageclassificationno.:O327;TU311.3;TG115.28documentcode:Apostno.:100026656(2009)0520356204keywordsSteeltubeconcrete;defects;Ultrasonictesting;Thewaveletanalysis;Soundsignal;ImpactechomethodNondestructiveTestingTechn

4、ologiesofConcrete2FilledSteelTubeXIAOYun2Feng,ZHOUXian2Yan(CentralSouthUniversityofForestryandTechnology,Changsha410004,China)Abstract:Threetestingmethods,suchasimpact2echo,ultrasonicandtheacousticsignalwereusedtodetectThestructurequalityofalargebridge.Theinspectionandanalysisshowed

5、thattheaccuracyofwavesTestingcouldbeimprovedbyusingtwoormoreparameterssuchastimeandfrequency.Theimpact2echomethodToinspectthequalityprobablyofconcrete2filledsteeltube;ThesoundidentificationcoulddetectflawsintheConcrete2filledsteeltube.Keywords:Concrete2filledsteeltube;TheFlaw;Ultras

6、onictesting;Waveletanalysis;&signal;Impact2echotestingConcrete-filledsteeltubeconcreteismixedwithcementAload-bearingcomponentformedbysoilIthasahighload,plasticityandtoughnessGoodquality,easyconstruction,fireresistanceandeconomicefficiency.SteelpipeConcretemembersaresubjectedtothecha

7、racteristicsofconcreteandtheconstructionprocessofpumpSuchinfluenceItoftenhasdefectssuchasinterfaceandholesDirectimpactjunctionThequalityofthestructureTherearesafetyconcernsThequalityoftheconcrete-filledsteeltubularpartsMeasurementcannotbeignored[1-2].AtpresentThetestandevaluationofs

8、teeltubeconcreteare