资源描述：
《Aesthetics in Bridge Design英1》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、AestheticsinBridgeDesignTheappearanceofthebridgeisdominatedbetheshapesandsizesoftheelementscontrolledbetheengineer-thestructuralelementsthemselves,notbydetails,color,orsurfaces.TheGoldenGateBridgeowesitsappealtothegracefulshapeofitstowersandcables,nottoitsreddi
2、shcolor.Ifthetowerswereugly,paintingthemredwouldnotmakethemattractive.Periodicallythesuggestionsismadethattheengineersshoulddelegateresponsibilityfortheappearanceofbridgetoarchitectsorothervisuallytrainedprofessionalssuchasurbandesigners,landscapearchitects,ors
3、culptors,thenotionbeingthatthiswouldresultinbetter-lookingstructures.Thisisrarelysuccessful.Theusualresultisanoverlyelaborateandoverlycostlystructure,withoutasignificantimprovementinappearance.Therearetworeasonsforthis.Thefirstisthatthevisualprofessionaldoesn’t
4、understandthespeciallimitationsandproblemsofbridgeor,evenmoreimportant,theaestheticopportunitiesofmodernengineeringmaterialsstructuraltypes.So,thedesignerfallsbackonthefamiliarconventionsofarchitectureorsculptureandmakessomethingthatlookslikeabuildingorapieceof
5、sculpture,notabridge.Thesecondreasonisthatthedelegationcanneverbecomplete.IntheUnitedStates,engineershavetheprofessionalandlegalresponsibilityforbridge.Theorganizationsthatcommission,finance,andbuildbridgesareusuallyrunbeengineers.Noneofthesepeoplearewillingorl
6、egallyabletodelegatecompleteresponsibilityforabridgetoanonengineer,nomatterhowtalented.Thisusuallymeansthatthe“important”(structural)aspectsofthebridgearereservedfortheengineers,whilethe“windowdressing”(surfacedetails,color)islefttothevisualprofessional.Althoug
7、hthedetailsareanimportantpartofastructure’saestheticimpact,itisthestructureitself-itsspans,proportions,andmajorelements—thathasthelargestroleincreatingitseffect.Iftheengineerdoesapoorjobwiththesemajorelements,noamountofarchitecturaladd-onswillcompensate.Enginee
8、rmustcontrolthestructuralelements-thatistheirjob.However,forthebridgetobeacompleteaestheticsuccess,thedetails,colors,andsurfaceshavetobeintunewiththestructuralconcept.Theref
