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1、为了适应公司新战略的发展，保障停车场安保新项目的正常、顺利开展，特制定安保从业人员的业务技能及个人素质的培训计划建筑材料翻译StructureinDesignofArchitectureAndStructuralMaterialWehaveandthearchitectsmustdealwiththespatialaspectofactivity,physical,andsymbolicneedsinsuchawaythatoverallperformanceintegrityisassured.Hence,heorshewellwantstothinkofevolvingabuildinge
2、nvironmentasatotalsystemofinteractingandspaceformingsubsystems.Isrepresentsacomplexchallenge,andtomeetitthearchitectwillneedahierarchicdesignprocessthatprovidesatleastthreelevelsoffeedbackthinking:schematic,preliminary,andfinal.Suchahierarchyisnecessaryifheorsheistoavoidbeingconfused,atconceptualsta
3、gesofdesignthinking,bythemyriaddetailissuesthatcandistractattentionfrommorebasicconsiderations.Infact,wecansaythatanarchitectsabilitytodistinguishthemorebasicformthemoredetailedissuesisessentialtohissuccessasadesigner.Theobjectoftheschematicfeedbacklevelistogenerateandevaluateoverallsite-plan,activi
4、ty-interaction,andbuilding-configurationoptions.Todosothearchitectmustbeabletofocusontheinteractionofthebasicattributesofthesitecontext,thespatialorganization,andthesymbolismasdeterminantsofphysicalform.Thismeansthat,inschematicterms,thearchitectmayfirstconceiveandmodelabuildingdesignasanorganizatio
5、nalabstractionofessentialperformance-spaceinheorshemayexploretheoverallspace-formimplicationsoftheabstraction.Asanactualbuildingconfigurationoptionbeginstoemerge,itwillbemodifiedtoincludeconsiderationforbasicsiteconditions.Attheschematicstage,itwouldalsobehelpfulifthedesignercouldvisualizehisorherop
6、tionsforachievingoverallstructuralintegrityandconsidertheconstructivefeasibilityandeconomicofhisorherscheme.Butthiswillrequirethatthearchitectand/oraconsultantbeabletoconceptualizetotal-systemstructuraloptionsintermsofelementaldetail.Suchoverallthinkingcanbeeasilyfedbacktoimprovethespace-formscheme.
7、Atthepreliminarylevel,thearchitectsemphasiswillshifttotheelaborationofhisorhermorepromisingschematicdesignoptions.Herethearchitectsstructuralneedswillshifttoapproximatedesignofspecificsubsystemoptions.Atthisstagethetotalstructuralschemeisdevelopedtoamiddlelevelofspecificitybyfocusingonidentification
8、anddesignofmajorsubsystemstotheextentthattheirkeygeometric,component,andinteractivepropertiesareestablished.Basicsubsysteminteractionanddesignconflictscanthusbeidentifiedandresolvedinthecontextoftotal-systemobjectives.Consultantscanplayasignificantpartinthiseffort;thesepreliminary-leveldecisionsmaya
9、lsoresultinfeedbackthatcallsforrefinementorevenmajorchangeinschematicconcepts.Whenthedesignerandtheclientaresatisfiedwiththefeasibilityofadesignproposalatthepreliminarylevel,itmeansthatthebasicproblemsofoveralldesignaresolvedanddetailsarenotlikelytoproducemajorchange.Thefocusshiftsagain,andthedesign
10、processmovesintothefinallevel.Atthisstagetheemphasiswillbeonthedetaileddevelopmentofallsubsystemspecifics.Heretheroleofspecialistsfromvariousfields,includingstructuralengineering,ismuchlarger,sincealldetailofthepreliminarydesignmustbeworkedout.DecisionsmadeatthislevelmayproducefeedbackintoLevelIItha
11、twillresultinchanges.However,ifLevelsIandIIarehandledwithinsight,therelationshipbetweentheoveralldecisions,madeattheschematicandpreliminarylevels,andthespecificsofthefinallevelshouldbesuchthatgrossredesignisnotinquestion,Rather,theentireprocessshouldbeoneofmovinginanevolutionaryfashionfromcreationan
12、drefinement(ormodification)ofthemoregeneralpropertiesofatotal-systemdesignconcept,tothefleshingoutofrequisiteelementsanddetails.Tosummarize:AtLevelI,thearchitectmustfirstestablish,inconceptualterms,theoverallspace-formfeasibilityofbasicschematicoptions.Atthisstage,collaborationwithspecialistscanbehe
13、lpful,butonlyifintheformofoverallthinking.AtLevelII,thearchitectmustbeabletoidentifythemajorsubsystemrequirementsimpliedbytheschemeandsubstantialtheirinteractivefeasibilitybyapproximatingkeycomponentproperties.Thatis,thepropertiesofmajorsubsystemsneedbeworkedoutonlyinsufficientdepthtoverytheinherent
14、compatibilityoftheirbasicform-relatedandbehavioralinteraction.ThiswillmeanasomewhatmorespecificformofcollaborationwithspecialiststhenthatinlevelI.AtlevelIII,thearchitectandthespecificformofcollaborationwithspecialiststhenthatprovidingforalloftheelementaldesignspecificsrequiredtoproducebiddableconstr
15、uctiondocuments.OfcoursethissuccesscomesfromthedevelopmentoftheStructuralMaterial.Theprincipalconstructionmaterialsofearliertimeswerewoodandmasoybrick,stone,ortile,andsimilarmaterials.Thecoursesorlayerswereboundtogetherwithmortarorbitumen,atarlikesubstance,orsomeotherbindingagent.TheGreeksandRomanss
16、ometimesusedironrodsorclapstostrengthentheirbuilding.ThecolumnsoftheParthenoninAthens,forexample,haveholesdrilledinthemforironbarsthathavenowrustedaway.TheRomansalsousedanaturalcementcalledpuzzling,madefromvolcanicash,thatbecameashardasstoneunderwater.Bothsteelandcement,thetwomostimportantconstructionmaterialsofmoderntimes,wereintroducedinthenineteenthcentury.Steel,basicallyanalloyofironandasmallamountofcarbonhadbeenmadeuptothattimeb
