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发布时间：2023-10-29 05:37:49 来源：文档文库

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长春建筑学院THEMAINPROBLEMSOFDOMESTICBRIDGEDESIGNINGNow,thecountry'sstructuraldesignprocess,suchtendencies:moreintensityconsideredinthedesignanddurabilityconsiderlessattentionintensitylimittotheuseofstatewithoutlimitstate,andthroughoutthelifecycleofthemostimportantwhenitispreciselytheuseofperformance;attentiontotheconstructionofthestructurewithoutattentiontothemaintenanceofthestructure.Infact,thecurrentdesignofthebridgeformoredurabilityisaconcern,asaconcept,didnotexplicitlyputforwardtherequestoftheuseoflife,northedurabilityofspecializeddesign.Thesetendenciestoacertainextent,ledtothecurrentprojectaccidents,theuseofpoorperformance,theshortlifeoftheadverseconsequencesofstructuralengineeringwiththeincreasingemphasisoninternationaldurability,safety,contrarytothetrendofapplicability;doesnotconformtothestructuredynamicandcomprehensiveeconomyrequirements.Bridgesafety,durability,themainreasonforpoor1ConstructionandmanagementoflowlevelMorebridgesathomeandabroaddestructionandthesuddencollapseofthebridgehasbeenengineeringmoreconcernedaboutsecurityissues.Thegeneralviewisthatthecurrentprojectisbarbaricincidentmanagementandconstructioncausedbycorruption.Fortheshortterm,suchasthedestructionandcollapseofasudden,mostlybecauseofconstructionqualitydidnotmeetspecificationsanddesignrequirements,typicalproblemsincludeinadequateandconstructionmaterialsintensityoffailure;alsoexist,suchasindividualbridgejerryseriousmanagementissues,butalsoonbridgesafetyof
长春建筑学院thefataldamage.Andalargenumberofbridgesinthefardidnotachievetheexpectedlifetime,therehasbeenaffectingthenormaluseofdiseaseanddeterioration,especiallyinanumberofbridgesinuseonlyafewyears,orevenjustcompletedsoonontheseriousproblemofinsufficientdurability,whichandthelowqualityofconstructionisanimportantrelationship,thetypicalproblemsofinadequateprotectionofreinforcedandthecurrentwidespreadintheconstructionsiteoftheseriousproblemofcrackingcomponent.Theseconstruction,althoughshort-termdeficienciesofthebridgewillnotbethenormaluseofaclearimpact,butthelong-termdurabilityofthestructurewillhaveaverynegativehazards.2DesigntheoryandstructureofthesystemisnotperfectenoughWhileacknowledgingtheexistenceoftheproblem,butitalso,itisundeniablethatbridgedesignfields,inparticularonthebridgeconstructionanduseoftheissueofsafetythereisstillmuchimprovement.Structuraldesignfirstandforemosttaskisthechoiceofreasonableeconomicprogrammer,followedbythestructuralanalysisanddesignofcomponentsandconnections,andaccesstoregulatethesafetyfactorspecifiedorreliabilityofindicatorstoensurethesafetyofthestructure.Manydesignersoftencomplacentwithnormsonthestructuralstrengthofthesafetyoftheneed,andignorethestructuralsystem,structure,structure,structureofmaterials,structuremaintenance,aswellasfromthestructuraldurabilityofthedesignandconstructionprocesstomakeuseofthatoftenappearintheman-madewrongareasto

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