桥梁工程学术英语PPTPPT文件格式下载.pptx

桥梁工程学术英语PPTPPT文件格式下载.pptx

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Rapidassessmentoffoundationscourusingthedynamicfeaturesofbridgesuperstructurename：

@#@StudentID：

@#@Author：

@#@RudolfSeracinoDepartmentofCivil,ConstructionandEnvironmentalEngineering,NorthCarolinaStateUniversity，Raleigh,NC27695-7908,USAAdelElsaidDarAl-HandasahConsultants,14GeziretAl-ArabSt.,Mohandeseen,P.O.Box:

@#@895,Cairo11511,EgyptJournal:

@#@ConstructionandBuildingMaterialsStructureIntroduction&@#@BackgroundNumericalsimulationExperimentalworkConclusions数值模拟数值模拟BackgroundScourFloodHydraulicLoadingIntroductionIntroduction:

@#@Acriticalreviewoftheup-to-dateliteratureshowedthathydraulicloading,includingscour,isresponsibleforabout50%ofthefailedbridgesovertheperiodof1989-2000.Theprimaryfocusofthisresearchisthedevelopmentandevaluationofdamagedetectiontechniquescapableofrapidlyidentifyingandpossiblyquantifyingtheextentofdeteriorationofcriticalcoastalbridgesduetoscouratsubmergedpierswithoutunderwaterinstrumentation.Thispaperillustrates,forthefirsttime,theuseofhorizontally-displacedmodeshapesandthecalculatedchangeinthedynamicflexibilityfeaturestoidentifyscourfromtheresponseofthebridgesuperstructure.动力弹性特性动力弹性特性PrimaryObjectiveScourDetectionTechniqueUnderwaterInstrumentationLong-termMonitoringDynamicbehaviorofthebridgesuperstructureonlyNumericalSimulationFEModelHorizontalModeShapesExperimentalWorkIdealizedBridgeTestSetupAccelerometerLocation理想化桥梁试验装置加速计布置ConclusionsVerticalModeShapesScourDynamicFeaturesofSuperstructureMagnitudeofScourNaturalFrequencies1.2.HorizontalModeShapesinsensitivesensitive3.LocationExtentPresence？

@#@自振频率ThankyouThankyou！

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