港口轮胎起重机支腿梁局部和整体稳定性研究

《港口轮胎起重机支腿梁局部和整体稳定性研究》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、西南交通大学硕士学位论文港口轮胎起重机支腿梁局部和整体稳定性研究姓名：袁晓军申请学位级别：硕士专业：车辆工程指导教师：肖守讷20070501西南交通大学硕士研究生学位论文第Ⅱ页AbstractAlongwiththerapiddevelopmentoftheworldeconomyandtrading，thecontainertransportationbecomestheimportantchannelinthemodemcan3r；_ngtrade．Asthesitesofthecontainertransportatio

2、n，themechanizationdegreeoftheportsmustbeimprovedveryrapidlyinordertoadaptwiththemodemrequirements．Theworkingcapabilitiesofthemachineproductionsarehigherthanbefore．Asoneofthespecialmechanismforloadandunload，conveyandstackinthecontaineryards．TheRubberTigerGirderCrane(

3、RTG)hassomeadvantagessuchasutilizethestockplacemoreefficiency,thefeeoftheconstructionislower,mobileandflexible，Canbeusedmorecommonly,ithasbe4mcomprehensiveusedinmostoftheworldports．Itisveryimportanttokeepstabilityinthedesignofthesteelstructure．Andtherearecorrespondi

4、ngcriterionsindifferentcountriestostipulatethesteelsmlctI∽stabilityrequirements．Itisobviouslyverynecessarytoabidetheserequirementsinordertoavoidbucklinghappensinthem．Butitisnotenoughifweonlydeaiwi也thosestructuresaccordingtothecriterions．Onesideitneedsallofthesteelst

5、ructuredesignerslucubrateandunderstandthemandfamiliarwithallkindsoftheinfluencefactorsforthestabilitypropertiesofsteelstructure．Furthermore．theremustbesomeinitialdisfigurementsintheactualsteelslnlcn盯esforthesomereasonssuchasmanufacture，transportationandinstallation．

6、Andwillbesomeimperfectlystraight，initialbendingandsomeeccentricandresidualstresshappensfortheloadingpointsofthepressuresisnotcentric．Almostallofthebucklingislimitpointandhavestrongnonlinear,itwillbeverycomplicatedtocalculate，anditwillnoteasytogettherightresults．Theb

7、ucklingofsteels仇lctureincludeslocalandoverallbuckling．ItwiUstartsfrommaturebucklingtheoriesofthesheetsteelandbedetaildescribedinthisPaDer．ExplainthemainsteelstrIlctImandlegstructure．10adingoftheRTGUtilizeEigenvalueandnonlinearBucklingAnalysisinANSYSso．aretoanalyzeso

8、metypicals饥IctllresuchasAnglewithcompressloading．compressedsheetsteelnostiffnesswithconstraintsofsupportonfouredges，compressedsheetsteelwi