柔性悬索桥静力分析及抗震性能研究

《柔性悬索桥静力分析及抗震性能研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、4镕代码：10351学号÷坚塑里型型夺肥工学犬警HefeiUniversityofTechnology硕士学位论文∥蓦～U论文题目：秉性悬索桥静力仆祈及抗震性能研究学位类别：学科专业：工程领域作者姓名学忻硕上导师姓名：完成时间蔡敏教授黑StaticAnalysis&ResearchesforEarthquakeResistantBehavioraboutFlexibleSuspensionBridgesAbstractFlexiblesuspensionbridgesfullyexertthecharacteristicthatthehigh-strengths

2、teelwiresgallbeargreatlyhightension,SOwecallbuildlargerbridgewithouthighertower．ThebridgestrIlcttlrehastheconcisedeck,consumeslesssteelproductsandCanbeeasybuildedandmaintained．ItsmodeliSbeautifulandtheconstructionCOstislow．Inrecentyears，moreflexiblesuspensionbridgesweregraduallyconst

3、ructedincitiesandscenicareas，andhavebeenmoreidealstruculresysteminmountainousareaswithinconvenienttransportation．TIliSarticleusesnon-linearfiniteelementtheory,andunitesdesignmethodsoflong-spanbridgesandactualsituationofflexiblesuspensionbridgestocarryonthedetailedanalysisforthestruct

4、ure．Inthestaticanalysis，thearticlehasmainlydiscusseddistortioncon仃oltoit。andfinallyproposedtwomethodstodecreasedistortionbyincreasing”thestructuregravityrigidity”．Regardingthedynamicanalysis，thisarticlehasmainlydiseussedtheearthquakeresistantbehaviorofit．Bycontrastitsdynamicspecialit

5、vwiththatoftheeommonsuspensionbridges．ithasdiscoveredrelationsbetweenitsstructurefeatureanditsdynamicspeciality．Finallythearticleusesresponsespectrummethodsandtimehistorymethodstoanalyseearthquakeresponsesofflexiblesuspensionbridges．Throughanalysesandcontrasts，ithasfredsomeimportanta

6、spectthatshouldbepaidmoreattentionintheeoUYseofseismicdesignofflexiblesuspensionbridgesandpointedoutthemainflawsofresponsespectrummethods．Myaspkationisthat,basedonsatisflngsecurity,applicability,economyandartistryofflexiblesuspensionbridges，fullyexertingthetrafficfunctionofit,theatti

7、cleCandevelopthenewdomainforthedevelopmentofsuspensionbridges．Keywords：Flexiblesuspensionbridges，Geometrynon-linearity，Distortion,Responsespectrum,Tunehistoryaulysis插图清单图卜l牛镇人行悬索桥总体布置⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯6图2-I单元运动过程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯10图2-2单元的位形与坐标系统⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯II图2-3N．R法的收敛过

8、程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯