桥梁工程学术英语PPTPPT文件格式下载.pptx
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Rapidassessmentoffoundationscourusingthedynamicfeaturesofbridgesuperstructurename:
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@#@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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