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 Posted: Sat 23:09, 07 May 2011 Post subject: gorras ed hardy Calculation of vertical dynamic im |
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Calculation of vertical dynamic impedance of pile and its influencing factors
52SimplifiedComputationalModelandParametricStudiesofVerticalDynamicImpedanceforSinglePileLuanMaotian''. KongDesen '(InstituteofGeotechnicalEngineering. SchoolofCivilandHydraulicEngineering, DalianUniversityofTechnology.Dalian. 116024, China) (StateKeyLaboratoryofCoastalandOffshoreEngineering,[link widoczny dla zalogowanych], DalianUniversityofTechnology,[link widoczny dla zalogowanych], Dalian, 116024, China) (. InstituteofRockandSoilMechanics, TheChineseAcademyofSciences, Wuhan, 430071, China) (SchoolofCivilandArchitecturalEngineering, ShandongUniversityofScienceandTechnology,[link widoczny dla zalogowanych], Qingdao, 266510.China) Abstract : Asimplifiedmechanicalmodelforcomputingtheverticaldynamicimpedancefunctionofsinglepileisestablishedbasedonacertainassumptionsandtheimproveddynamicmodelofbeam-on-Winkler'sfoundationbyusingtheprincipleofsoildynamicsandstructualdynamics. Boththesofteningeffectofsoilsaroundpileduringvibrationandslippagealongthepile-soilinterfacearetakenintoaccount. Thecharacteristicsofthefrequency-dependencyofdynamicstiffnessanddampingofpilearereproduced. Itisshownthroughthecomparativestudiesonanexamplethatthenumericalresultsofdynamicimpedanceofpilecomputedbytheproposedmethodarerelativelyrationalandcanwellagreewiththecomputationalandex-perimentalresultscurrentlyavailable. Finallyparametricstudiesaremadeforavariedrangeofmainparametersinvolvedtodiscusstheeffectofrelevantfactorsonverticaldynamicimpedanceofpile. Keywords: pilefoundation; verticaldynamicimpedance; slippage; verticalvibration; dynamicpile-soilinteraction first author : LUAN Mao-tian , male . Ph.D.,[link widoczny dla zalogowanych], Professor ,[link widoczny dla zalogowanych], January 1962 students. Tel : (0411) 84708513; E-mail: mtluan @ dlut. edu. cn
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