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1、ThebridgecrackproducedthereasontosimplyanalyseInrecentyears,thetrafficcapitalconstructionofourprovincegetsswiftandviolentdevelopment,allpartshavebuiltalargenumberofconcretebridges.Inthecourseofbuildingandusinginthebridge,relevanttoinfluenceprojectqualityleadofcommonoccurrencereporttha
2、tbridgecollapseevenbecausethecrackappearsTheconcretecanbesaidto"oftenhaveillnesscomingon"whilefracturingand"frequently-occurringdisease",oftenperplexbridgeengineersandtechnicians.Infact,iftakecertaindesignandconstructionmeasure,alotofcrackscanbeovercomeandcontrolled.Forstrengthenunder
3、standingofconcretebridgecrackfurther,isitpreventprojectfromendangerlargercracktotryone'sbest,thistextmakeanmoreoverallanalysis,summarytoconcretekindandreasonofproduction,bridgeofcrackasmuchaspossible,inordertodesign,constructandfindoutthefeasiblemethodwhichcontrolthecrack,gettheresult
4、oftakingprecautionsagainstYuWeiRan.Concretebridgecrackkind,origincauseofformationInfact,theorigincauseofformationoftheconcretestructurecrackiscomplicatedandvarious,evenmanykindsoffactorsinfluenceeachother,buteverycrackhasitsoneorseveralkindsofmainreasonsproduced.Thekindoftheconcretebr
5、idgecrack,onitsreasontoproduce,canroughlydivideseveralkindsasfollows:(1)loadthecrackcausedConcreteinroutinequiet.Isitloadtomoveandcrackthatproduceclaimtoloadthecrackunderthetimesofstressbridge,summinguphasdirectstresscracks,twokindsstresscrackoncesmainly.Directstresscrackrefertooutsid
6、eloaddirectcrackthatstressproducethatcause.Thereasonwhythecrackproducesisasfollows,1,Designthestageofcalculating,doesnotcalculateorleaksandcalculatespartlywhilecalculatinginstructure;Calculatethemodelisunreasonable;Thestructureissupposedandaccordedwithbystrengthactuallybystrength;Load
7、andcalculateorleakandcalculatefew;Internalforceandmatchingthemistakeincomputationofmuscle;Safetycoefficientofstructureisnotenough.Donotconsiderthepossibilitythatconstructatthetimeofthestructuraldesign;Itisinsufficienttodesignthesection;Itissimplylittleandassigningthemistakeforreinforc
8、ingba
