I摘要目前，拱坝已经被广泛应用于现代水利工程的高坝建设之中，因为拱坝相比其他类型大坝具有很多的优势，比如超载能力强、造型优美、抗震性能好、结构轻巧等优点。由于拱坝的复杂的空间壳体结构，因此拱坝的受力状况也非常的复杂，评价一个拱坝安全性的重要的指标是坝体的应力应变性能，为了对高拱坝结构的安全性进行更好的进行分析和评价，研究复杂受力状况下拱坝位移及应力变化规律和特点是非常重要的一点。本设计主要应用到有限单元法静动力分析的原理和计算方法，应用FEPG.GID软件建立白鹤滩拱坝的实体模型，建立模型的过程发现该软件强大的建模功能，之后会用到功能全面的有限元软件ABAQUS，用此软件对白鹤滩拱坝进行有限元动力分析。主要有以下的研究结论和工作内容：（1）动力计算分析时进行拱坝动力时程分析，通过计算与分析，研究白鹤滩拱坝在地震力作用下的动力响应特征。动力时程分析结果显示，建设大坝设置扩大基础比无扩大基础更加的安全，有效的降低坝基的压应力，根据应力的分布，进行配筋设置。根据损伤图提出相应的抗震措施。（2）本设计是以工程实例为根据，应用ABAQUS软件进行静动力分析，最终得到位移应力图以及动力响应的结果特性良好，这些成果对实际工程设计及建设有实际的指导作用。关键词：白鹤滩拱坝；建模；有限元动力分析计算；应力分析。DesignofAnti-seismicMeasuresforArchDamIIAbstractAtpresent,archdamshavebeenwidelyusedintheconstructionofhighdamsofmodernwaterconservancyprojects,becausearchdamshavemanyadvantagesoverothertypesofdams,suchasoverloadingability,beautifulshape,goodseismicperformanceandlightstructure.Duetothecomplexspatialshellstructureofthearchdam,thestressconditionofthearchdamisalsoverycomplicated.Theimportantindextoevaluatethesafetyofanarchdamisthestressandstrainperformanceofthedam,andthearchdamundercomplexstressDeformationandstressvariationrulesandcharacteristicsofthehigharchdamstructuresafetyanalysisandevaluationhasveryimportantsignificanceandvalue.Thisdesignismainlyappliedtotheprincipleandcalculationmethodofstaticanddynamicanalysisoffiniteelementmethod.ThephysicalmodelofBaihetanarchdamisestablishedbyFEPG.GIDsoftware.FiniteelementsoftwareABAQUSisusedtoanalyzethefiniteelementstaticanddynamicforceofBaihetanarchdam.Themaincontentsoftheworkandtheconclusionsareasfollows:(1)Dynamicanalysisofarchdamsiscarriedout.ThedynamicresponsecharacteristicsofBaihetanarchdamundertheactionofseismicforcearestudiedbycalculationandanalysis.Theresultsofdynamictimehistoryanalysisshowthattheconstructionofdamfoundationismoresafethannon-expandingfoundation,effectivelyreducingthecompressivestressofdamfoundation,andarrangingreinforcementaccordingtothedistributionofstress.Accordingtothedamagemaptoputforwardthecorrespondingseismicmeasures.(2)Thedesignisbasedontheconcretehigharchdamengineeringexample,usingthelarge-scalefiniteelementanalysissoftwareABAQUSthree-dimensionalfiniteelementanalysismethodtoobtainthedisplacementdiagram,stressdiagram,structureofthevibrationcharacteristicsanddynamicresponseresultsregularityisbetter,Theseresultsnotonlyhavepracticaleffectontheconstructionanddesignofpracticalprojects,butalsohavegreatreferencevalueforsimilarprojects.Keywords:Baihetanarchdam;modeling;finiteelementdynamicanalysisandcalculation;stressanalysis。III目录摘要................................................................IAbstract...........................................................II1引言..............................................................12拱坝的特点及对研究主要的内容的简单介绍...........................22.1拱坝的结构特点.........................
