《桥梁建筑新论》第一章绪论New theory of bridge construction Chapter 1 Introduction.docx
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《桥梁建筑新论》第一章绪论New theory of bridge construction Chapter 1 Introduction.docx
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《桥梁建筑新论》第一章绪论NewtheoryofbridgeconstructionChapter1Introduction
《桥梁建筑新论》-第一章绪论(NewtheoryofbridgeconstructionChapter1Introduction)
"Bridgebuildingtheory"-thefirstchapteristheintroductionof.Txt
"Bridgebuildingtheory"-thefirstchapter
Liwei9604,Hello!
TodayisSunday[2002-1-13]bookmarkonlineconsultingservicemessageboard
Youarenowinapositionto"bridgespacenetwork"professionalWenYuan"highwaybridgeinthispaperhasbeenread50times.
"Bridgebuildingtheory"-thefirstchapter
Author:
ZhangShiding
(copyright,withoutpermissionfromtheauthor,donotreprint)
Thefirstchapteristheintroduction
Thestatusof1.1bridgearchitecture
Atpresent,theauthoralsodidnotseethe"bridgearchitecture"inotherwritingssaid,probablybecauseofsomeworksonlyonthebridgeaesthetics,oronlytalkabouttheartofbridgeconstructionconcretebecauseofit.Inthetextbooksoftheauthorsee,probablyincluding:
Averyroughdescriptionofthebridgedevelopment;
Theclassificationsystemofthebridgesystemisnotenough;
Thesimplecrossbridgeholelayoutprinciplesandcross-sectionaldesignetc.;
Theclassificationoffragmentedstructureandcomponentcrosssectionform4;
Althoughthetalkofbridgeaesthetics,andthelandscapedesign,buthasnotyetestablishedasystemoftheory.
Thestudyofmechanicsandaesthetics,therelationshipofstructurestresssuperiorresearch,designofbridgeprojectandselectedtheoreticalresearchisscanty.
Inthepast,numericalcalculationusingtheslideruleormechanicalcomputer,computationalmethodsareverylimited,andoftenneedadeepunderstandingofthemechanicalpropertiesofthestructure(structural
Performance),suchastheforcetransmissionpath,intheclearbearingstructuresystemwhichisanimportantcomponentofwhichisthepremiseofasecondarycomponentundertheproposedsimplifiedschemaofstructure,whichisinthenumericaltimemancanachievecomputingpowerrange,canleadtosatisfactoryresults,sometimes,oftenneedtomakeotheraspectsthesacrifice,forexample,thestructureofstaticstructureorindeterminatenumberless;thecomparisonstageintheprogram,butalsotomakeachoiceofdifferentstructuralsystems.Objectivelyspeaking,theimportanceofbridgeconceptualdesignfavorable.Butalsobecauseofthecalculationmeansbackward,thebridgestructureoflargespan,nonlinearandcomplexsystembehaviorresearchisnotenough,whichrestrictsthedevelopmentofthebridge.
Withthedevelopmentofscienceandtechnology,electroniccomputer(electronicdigital
Computerhashighspeed),thecapacityislarge,itismoreandmorewidelyusedinthefieldofbridge,theanalysisofengineeringstructuresbecomeaneasyjobtodo,sothatthecalculationofthestructuredesignerfrompreviousheavyout,andcandesignsuchastheAkashikaikyobridge,theGreatBeltBridgeofDenmarkandHongkong.NinebridgeandTsingMaBridgeandotherfamousbuildings.Butbecausethecomputeritselfisnotonthestructureofsystemeffectivenessdifferencemakefavorablechanges,whichwillleadtothestructureofsystemisnotsuitabletoaccept.Therefore,thedesignercannotonlycanusestructuralanalysissoftware,andshouldhavetheenergy,andthethoroughresearchofbridgeconstructiontechnology,thestructureofsuperior,technicallyfeasibleandeconomicallyreasonable,beautifulandharmonious,tomakeupfortheinadequacyofthecomputer.
Thesystematicarchitectureistobuildbridgesofbridgeengineeringwhichisapressingmatterofthemoment,byoneofthemaincontentsscattered,systematicandscientificexperiencetotype.
Characteristicsofthe1.2bridgearchitecture
Tosaythecharacteristicsofbridgearchitecture,perhapsonlythehousingarchitecturearecomparedcanbedisplayed.Ithinkthatthesimilaritiesanddifferencesbetweenthebridgearchitectureandbuildingarchitectureisthesimilaritiesanddifferencesbetweenthebridgeandthehouse.
Thehousingstructurehasthefollowingcharacteristics:
-isthemainenvelope;
-theflatterrain;
-geologicalchangeslittle;
Thepress;
Thecolumnisthemainbearingmember;
Andthedeadloadofthetotalloadofmost;
Theconstructionisoftenusedtobuilduplayersofsupport.
Thebridgestructurehasthefollowingcharacteristics:
-isthemaincrossingstructure(exposed),itsspanisoftenbuildingincomparable;
Often,acrosstheriver,eventhecanyon;
Andacrosstheterrainandgeologyarecomplexandchangeable;
Andoftenanarrowbeltalongthebridgedirection;
Andthemainbearingmembertobendingandshearing(beam),pressure(arch)orpull(bridge);
Liveload(vehicles,pedestrians)accountedforalargeproportion;
Theconstructionmethods,theconstructionprocessiscomplex,andmaychangethecomplexsystem.
Thisdeterminesthemaximumcharacteristicsofbridgebuildingisdifferentfromtheotherbridgeconstructionmustfirstmeettherequirementsofstaticbalance,theforceofgravityisthecharacteristicsofthebuildingcharacteristicsofbridgearchitecture.
Asanegativeexample,the[1.2]mentionedintheSeineRiverinParisonthe"LizAusterArmandbridge"failureofthearchitectcompetitiongraphisshocking,inmyview,itisbecauseofthesewhodesignedthebuildingfamousarchitectofthebridgeconstructioncharacteristicsofthelackofunderstanding,itledtothefruit.
Theauthornotonly,theauthorputforwardtwentyprinciples,thebridgedesignshouldfollowthetwentyprinciples,thebridgespanarrangementshouldfollowthesevenprinciples,conversionbridgeinternalforceanalysisandrelevantsystemofroughbridgelandscapedesign,tobuildabridgearchitecture.
Thecontentsof1.3bridgearchitecture
Bridgearchitecture(bridgearchitecture),notonlyshouldthebridgeaesthetics(Bridge
Aesthetics),whichshouldincludetheoptimalbridgestresstheory,andputitinaveryimportantposition,atthesametime,includingtheoveralldesign,bridgedesignandcomparisonetc..
Thebasictheoreticalknowledgeofbridgearchitecturerequired:
theoreticalmechanics,materialmechanics,structuralmechanics,structuraldesignprinciple,hydraulics,soilmechanics,bridgedevelopmenthistory,aesthetics,designandconstructionofbridge.ThebridgebuildingdesignisabovethebasictheoryandArchitecture(LandscapeArchitecture)organicintegration.
Consideringthebasicknowledgerelatedinbridgeengineeringtextbooksingeneralhavediscussed,andeventhebridgeaesthetics,landscapearchitecturaldesignandmonographon,sohereonlybriefly,andwillfocusontheoptimalbridgedesigntheory,thebridgespanlayout,crosssectionselectionandschemedesignandcomparison.,andbrieflyintroducestheNanjingRoadTaizhouyinjianghebridgeplanninganddesignetc..
Therefore,thisbookforthefollowingchapters:
Thefirstchaptertellsthestatusofbridgeconstructiondesign,anddiscussesthearchitectandengineerduties,technologyandart,relationshipbetweenstructureandfunctionintheconstructionoftheimportanceandthegeneralprincipleofmodernarchitecturaldesign.
Thesecondchapter:
theoutlineofthedevelopmentofbridge.Thisistheunderstandingofthebasicknowledgenecessaryforbridgeconstruction.
Thethirdchapter:
thereasonablestructureofbridgerules,theauthorsummarizes20principles.Thisisoneofthemaincontentsofthisbook.
Thefourthchapter:
thebridgeclassification,thebridgeisdividedinto15categories,anewevaluationofthebridgeare.Thisisoneofthemaincontentsofthisbook.
Thefifthchapter:
thebridgeinternalforceroughestimateandcross-sectionsize,calculationmethodslistedhereisveryrough,butisconducivetosimple,convenientandfasttocalculatetheinternalforce,andgivesaroughsectionsize.
Thesixthchapter:
thebridgedesign,mainlyexpoundsthe20principlesofbridgespanlayout,thedesignshouldbetakenintoconsideration,planningandprojectselection.Thisisoneofthemaincontentsofthisbook.
Theseventhchapter:
engineeringdesigncases-NanjinghighwayTaizhouYinjiangRiverBridge,thebridgeasanexample,thewholeprocessofarchitecturaldesignofbridge.Thisisoneofthemaincontentsofthisbook.
Theeighthchapter:
thenewstructureandtheprospectofnewbridge,bridgefullbridgemainlyintroducestheauthorandothernewbridgeandideas,thefutureprospectofthebridge.
Divisionoflaborandcooperation[1.3]1.4architectsandstructureengineers
Thearchitecttoartists,aesthetesitself,thelackofrealunderstandingoftechnology,thereisnotechnicaldesigncreativeinspiration,thelackofextensiveandsincerecooperationwiththeengineer,thearchitecturaldesignisoftensuperficial,difficulttoescapetheaestheticcategory,whichhinderstheconstructionofinnovation.
Onthecontrary,thestructureengineersare"importanceofthings,despiseexternalthings"inside,emphasisonthethinkingofthetechnologyitselfandtheinternalorganizationoftherelationship,easytofallintothetediouscalculationsanddetailsofthecomplexprocess,andinvolvesthenature,societyandpeople'spsychologicalfeelingssuchasbuildingproblemssimplyattributedtotechnicalproblemsofone-waythetheoryoftechnologytobecometheonlytoacertainextent"".
Fortheproblemoftherelationshipbetweentechnologyandart,structuralengineerandarchitectNervisaidin"technologyandart"buildingabook:
Atechnicallyperfectworks,
Possibleintheartisticeffectispoor;
However,whetherancientormodern,
Butnoonerecognizedoutstandingarchitectureaesthetics.
Thetechnologyisnotgood."
Here,toomuchemphasisontheartofner
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