Building Information Modeling

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1、BuildingInformationModelingWhoisLiable?ChristopherRiddell2FordecadestheAECworldhadbeendominatedbyhanddrawingsanddraftingtables.WhenAutoCADwasintroduceditrevolutionizedtheindustry.Architectswerenowabletomakequickadjustmentstotheirplans,sections,andelevationswithouthavingtoredrawtheentiredra

2、wing.Drawingsbecamemorepreciseandcertaindesignideaswereabletocometolifewiththecomputer.Thedesignandconstructionofabuildingreliedonthesedrawingsinordertocorrectlybuildwhatwasdesignedbythearchitect.Althoughthese2Ddrawingssavedalotoftimeandbecameclearerthantheirpredecessorstherewerelimitation

3、sattachedtothem.Theyrequiredmultipleviewstodepicta3Dobjectin1adequatedetailforconstruction,makingthemhighlyredundantandthusopentomoreerrors.AlsoinAutoCADtheyarestoredaslines,arcsandtextthatareonlyinterpretablebysome2people,butcannotbeinterpretedbycomputers.Foraboutthelast20yearstherehasbee

4、ntalkaboutusingthesametechnologyofAutoCAD,butimprovingitinordertocreate3Dmodels.Withinthelast8-10yearsBuildingInformationModelingorBIMhasbeenthenewbuzzwordandthistechnologyhasprovedtorevolutionizetheindustrymorethanany2Dprogram.Therearetwotheoriesontheoriginofthetermbuildinginformationmode

5、ling.ThefirstoneisthatthetermwascoinedbyAutodesktodescribe"3Dcomputergraphics,object-oriented,AEC-specificCAD".ThesecondtheoryclaimsthatProfessorCharlesM.EastmanatGeorgiaInstituteofTechnologycoinedtheterm.ThistheoryisbasedonaviewthatthetermBuildingInformationModelisbasicallythesameasBuildi

6、ngProductModel,whichProfessorEastmanhasusedextensivelyinhisbookandpaperssincethelate1970s.('Productmodel'means'datamodel'or'informationmodel'inengineering.)Nevertheless,itisagreeduponthatthetermwaspopularizedbyJerryLaiserinasacommonnameforadigitalrepresentationofthebuildingprocesstofacilit

7、ateexchangeandinteroperabilityofinformationindigitalformat.Accordingtohimandothers,thefirstimplementationofBIMwasundertheVirtualBuildingconceptby3Graphisoft'sArchiCAD,initsdebutin1987.TherearealotoftopicsthatsurroundBIManditscapabilities,butoneofthemostintrigu