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1、ConnectionsTeachingPerryS.Green,Ph.D.ToolkitThomasSputo,Ph.D.,P.E.PatrickVeltriATeachingGuideforStructuralSteelConnectionsPREFACEThisconnectiondesigntoolkitforstudentsisbasedonthefailure.Connectionsarealwaysdesignedasplanar,two-originalsteelsculpturedesignedbyDuaneS.Ellifritt,P.E.,
2、dimensionalelements,eventhoughtheyhavedefinitethree-Ph.D.,ProfessorEmeritusofCivilEngineeringattheUni-dimensionalbehavior.StudentswhohaveneverbeenversityofFlorida.Thetoolkitincludesthisteachingguide,aroundconstructionsitestoseesteelbeingerectedhaveaa3DCADfileofthesteelsculpture,and
3、ashearconnectiondifficulttimevisualizingthisthree-dimensionalcharacter.calculatortool.TheteachingguidecontainsdrawingsandTryexplainingtoastudentthebehaviorofashop-welded,photographsofeachconnectiondepictedonthesteelsculp-field-bolteddouble-angleshearconnection,wheretheout-ture,theC
4、ADfileisa3DAutoCAD®modelofthesteelstandinglegsaremadepurposelytoflexunderloadandsculpturewithcompletedimensionsanddetails,andthecal-approximateatruepinnedconnection.TextbooksgenerallyculatortoolisaseriesofMathCAD®worksheetsthatshoworthogonalviewsofsuchconnections,butstillmanyenable
5、stheusertoperformacomprehensivecheckofallstudentshavetroublein“seeing”therealconnection.requiredlimitstates.Inthesummerof1985,afterseeingtheinabilityofmanyThetoolkitisintendedasasupplementto,notareplace-studentstovisualizeevensimpleconnections,Dr.Ellifrittmentfor,theinformationandd
6、atapresentedintheAmeri-begantosearchforawaytomakeconnectionsmorerealforcanInstituteofSteelConstruction’sManualofSteelthem.Fieldtripswereonealternative,buttheavailabilityConstruction,Load&ResistanceFactorDesign,ThirdEdi-oftheseisintermittentandwithalltheproblemsofliability,tion,here
7、after,referredtoastheAISCManual.Thegoalofsomeconstructionmanagersarenottooanxioustohaveathetoolkitistoassiststudentsandeducatorsinbothlearn-groupofstudentsaroundthejobsite.Thoughtwasgiventoingandteachingbasicstructuralsteelconnectiondesignbybuildingsomescalemodelsofconnectionsandbr
8、ingingvisualizationtoolsan
