工程管理外文期刊文章原文

SCIENCECHINATechnologicalSciencesCorrespondingauthor(email:[e-mail])•RESEARCHPAPER•May2010Vol.53No.5:1450–1452doi:10.1007/s11431-010-0186-1ReviewfordynamicresearchesincivilengineeringinrecentyearsXUZhaoDongRC&PCKeyLaboratoryofEducationMinistry,SoutheastUniversity,Nanjing210096,ChinaReceivedFebruary1,2010;acceptedMarch24,2010;publishedonlineApril15,2010Structuredynamicresearchisahotfieldincivilengineering.Itinvolvesinmanychallengetopics,suchasdynamicanalysisandtestsunderearthquake,windorotherdynamicexcitations.Thispaperintroducesmaindynamicresearchesincivilengi-neeringinrecentyears,whichwillbeclassifiedintofiveaspects,especiallyforresearchespublishedinScienceinChinaSeriesE:TechnologicalSciences.civilengineeringstructures,dynamicresearchesCitation:XuZD.Reviewfordynamicresearchesincivilengineeringinrecentyears.SciChinaTechSci,2010,53:1450−1452,doi:10.1007/s11431-010-0186-1Inrecentyears,civilengineeringstructuresincludinghigh-risebuilding,long-spanreticulatedstructure,bridgeanddamdevelopveryquicklywiththefastdevelopmentofeconomic.Asknown,strongearthquakeshappenfrequentlyintheseyears,suchasWenchuanearthquakeinChinaandHaidiearthquake.Hurricane,tsunamietc.extremedisastersseemmoreandmorewithchangesofclimateoftheearth.Thesedisasterloadsarethetypicaldynamicexcitationsforcivilengineeringstructures.Manychallengetopicsondy-namicproblemshavebeenpaidmoreattentionbytheworld.ThemomentousresearchprograminNationalNaturalSci-enceFundiserectedforthesetopicsinChina.Dynamicresearchesincivilengineeringcanbeclassifiedintothefollowingaspects.Firstly,studyonexcitationfieldforcivilengineeringstructuresisoneoftheimportantdy-namicresearchissues.Forexample,simulationofwindfieldandearthquakefieldforthecomplexstructures.Dingetal.[1]madeanimprovementtothespectralrepresentationalgo-rithmforthesimulationofwindvelocityfieldsonlargescalestructures.Turbulentwindvelocityfieldthroughaverticalplaneonalong-spanbridgewassimulatedtoillustratetheproposedschemeswhichrequirelesscomputermemoryandweremoreefficientlythanthatobtainedusingtheexistingtraditionalmethod.Tangetal.[2]obtainedthehigh-resolu-tion,three-dimensionalwindfieldofthetyphoonusedindisasterpreventionandreductionofcivilengineeringbyap-plyingthequadruplednestinggridwithspacingof27,9,3and1km.Linetal.[3]analyzedthedynamicdam-reservoirinteractionconsideringtheeffectofreservoirboundaryab-sorption.Itfacilitatedtheapplicationofearthquakeresponseanalysisofdam-reservoir-foundationsystemincludingreser-voirboundaryabsorptiontotheengineeringpractice.Lietal.[4]simulatedtheexcitationloadofpiezoelectricactuatorforsmartstructuresbyusingthefiniteelementmethod,andthiswasvaluableforpromotingtheapplicationofpiezoelectricmaterialandstructuresinpracticalaviationandaerospacefields.Secondly,numericaldynamicanalysisisanotherim-portantdynamicresearchissueforcivilengineeringstruc-tures.Thisinvolvesinerectingprecisenumericalmodelsforcomplexstructuresandstudyingdynamicanalysismethodsincludingtimedomainandfrequencydomainanalysismethods.Geetal.[5]introducedthemodelsandmethodsforcomputationallydeterminingtheaerodynamicinstabilityoflong-spanbridges,withemphasisonthreeaspects,in-cludingself-excitedaerodynamicforcemodel,numerical©ScienceChinaPressandSpringer-VerlagBerlinHeidelberg2010tech.scichina.comXUZhaoDongSciChinaTechSciMay(2010)Vol.53No.51451identificationofflutterderivatives,andtwo-dimensionalorthree-dimensionalflutteranalysismethod.Thestudyofgreatvaluetotheoreticalmethodwasexpectedtobedevel-opedtoreplacewindtunneltestbynumericallyanalyzingtheaerodynamicflutteroflong-spanbridges.Lacarbonaraetal.[6]presentedanumericalmodeldescribingtheplanarelasto-dynamicsofarchbridgeswithgeneralarchprofiles.Themodelwasamenabletoanalyticalorsemi-analyticaltreatmentsandiseffectiveforparametricstudies,designofcontrolsystemsorstructuraloptimizations.Wangetal.[7]carriedoutfieldmeasurementonwindcharacteristicandbuffetingresponsesoftheRunyangSuspensionBridgedur-ingtyphoonMatsa.Resultsobtainedinthisstudycouldbeemployedtovalidatethecredibilityofcurrentbuffetingresponseanalysistheorytechniques,andprovidereferencevaluesforwindresistantevaluationofotherlong-spanbridges.Inordertowarndisasterearlyandreducethelossofeconomyandlifeduetoextremedynamicresponsesofstructures,structuralhealthmonitoringforimportantstruc-turesanddetectingdamagestimelyarenewlydevelopingresearchareas.Atthesametime,howtoimprovevibrationresistanceabilityofstructuresisalsoachallengeresearcharea,suchasstructurevibrationcontrol.Therefore,re-searchesonstructuralhealthmonitoringandstructurevi-brationresistanceabilitycanbeconsideredasthethirddynamicresearchaspect.Wuetal.[8]madeareviewonhiddentroubledetectionandhealthdiagnosistechniquesforhydraulicconcretestructures.Thisstudysummarizedkeyresearchesandpointedoutthehottopicsinthisaspect.Lietal.[9]carriedoutstudyonfundamentalmodelingonbenchmarkstructureforstructuralhealthmonitoring.Itwassuggestedthatamoresophisticated3-dimensionalframestructuremodelshouldbeadoptedastheidentificationmodel,ifintendingtodetectlocalmemberdamagescor-r