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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,relevantt
2、oinfluenceprojectqualityleadofcommonoccurrencereportthatbridgecollapseevenbecausethecrackappearsTheconcretecanbesaidto"oftenhaveillnesscomingon"whilefracturingand"frequently-occurringdisease",oftenperplexbridgeengineersandtechnicians.Infact,iftakecer
3、taindesignandconstructionmeasure,alotofcrackscanbeovercomeandcontrolled.Forstrengthenunderstandingofconcretebridgecrackfurther,isitpreventprojectfromendangerlargercracktotryone'sbest,thistextmakeanmoreoverallanalysis,summarytoconcretekindandreasonofp
4、roduction,bridgeofcrackasmuchaspossible,inordertodesign,constructandfindoutthefeasiblemethodwhichcontrolthecrack,gettheresultoftakingprecautionsagainstYuWeiRan.Concretebridgecrackkind,origincauseofformationInfact,theorigincauseofformationoftheconcret
5、estructurecrackiscomplicatedandvarious,evenmanykindsoffactorsinfluenceeachother,buteverycrackhasitsoneorseveralkindsofmainreasonsproduced.Thekindoftheconcretebridgecrack,onitsreasontoproduce,canroughlydivideseveralkindsasfollows:(1)loadthecrackcaused
6、Concreteinroutinequiet.Isitloadtomoveandcrackthatproduceclaimtoloadthecrackunderthetimesofstressbridge,summinguphasdirectstresscracks,twokindsstresscrackoncesmainly.Directstresscrackrefertooutsideloaddirectcrackthatstressproducethatcause.Thereasonwhy
7、thecrackproducesisasfollows,1,Designthestageofcalculating,doesnotcalculateorleaksandcalculatespartlywhilecalculatinginstructure;Calculatethemodelisunreasonable;Thestructureissupposedandaccordedwithbystrengthactuallybystrength;Loadandcalculateorleakan
8、dcalculatefew;Internalforceandmatchingthemistakeincomputationofmuscle;Safetycoefficientofstructureisnotenough.Donotconsiderthepossibilitythatconstructatthetimeofthestructuraldesign;Itisinsufficienttodesignthesection;Itissimplylittleandassigningthemis
