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1、西南交通大学本科毕业设计外文翻译第14页ThebridgecrackproducedthereasontosimplyanalyseInrecentyears,thetrafficcapitalconstructionofourprovincegetsswiftandviolentdevelopment,allpartshavebuiltalargenumberofconcretebridges.Inthecourseofbuildingandusinginthebridge,relevanttoinflue
2、nceprojectqualityleadofcommonoccurrencereportthatbridgecollapseevenbecausethecrackappearsTheconcretecanbesaidto"oftenhaveillnesscomingon"whilefracturingand"frequently-occurringdisease",oftenperplexbridgeengineersandtechnicians.Infact,iftakecertaindesignandc
3、onstructionmeasure,alotofcrackscanbeovercomeandcontrolled.Forstrengthenunderstandingofconcretebridgecrackfurther,isitpreventprojectfromendangerlargercracktotryone'sbest,thistextmakeanmoreoverallanalysis,summarytoconcretekindandreasonofproduction,bridgeofcra
4、ckasmuchaspossible,inordertodesign,constructandfindoutthefeasiblemethodwhichcontrolthecrack,gettheresultoftakingprecautionsagainstYuWeiRan.Concretebridgecrackkind,origincauseofformationInfact,theorigincauseofformationoftheconcretestructurecrackiscomplicated
5、andvarious,evenmanykindsoffactorsinfluenceeachother,buteverycrackhasitsoneorseveralkindsofmainreasonsproduced.Thekindoftheconcretebridgecrack,onitsreasontoproduce,canroughlydivideseveralkindsasfollows:(1)loadthecrackcausedConcreteinroutinequiet.Isitloadtomo
6、veandcrackthatproduceclaimtoloadthecrackunderthetimesofstressbridge,summinguphasdirectstresscracks,twokindsstresscrackoncesmainly.Directstresscrackrefertooutsideloaddirectcrackthatstressproducethatcause.Thereasonwhythecrackproducesisasfollows,1,Designthesta
7、geofcalculating,doesnotcalculateorleaksandcalculatespartlywhilecalculatinginstructure;Calculatethemodelisunreasonable;Thestructureissupposedandaccordedwithbystrengthactuallybystrength;Loadandcalculateorleakandcalculatefew;Internalforceandmatchingthemistakei
8、ncomputationofmuscle;Safetycoefficientofstructureisnotenough.Donotconsiderthepossibilitythatconstructatthetimeofthestructuraldesign;Itisinsufficienttodesignthesection;Itissimplylittleandassigningthemis
