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1、青岛理工大学毕业设计（论文）外文文献翻译ReinforcedConcrete（来自《土木工程英语》）Concreteandreinforcedconcreteareusedasbuildingmaterialsineverycountry.Inmany,includingtheUnitedStatesandCanada,reinforcedconcreteisadominantstructuralmaterialinengineeredconstruction.Theuniversalnatureofreinforcedconcreteconstructionstemsfr
2、omthewideavailabilityofreinforcingbarsandtheconstituentsofconcrete,gravel,sand,andcement,therelativelysimpleskillsrequiredinconcreteconstruction,andtheeconomyofreinforcedconcretecomparedtootherformsofconstruction.Concreteandreinforcedconcreteareusedinbridges,buildingsofallsortsundergrounds
3、tructures,watertanks,televisiontowers,offshoreoilexplorationandproductionstructures,dams,andeveninships.Reinforcedconcretestructuresmaybecast-in-placeconcrete,constructedintheirfinallocation,ortheymaybeprecastconcreteproducedinafactoryanderectedattheconstructionsite.Concretestructuresmaybe
4、severeandfunctionalindesign,ortheshapeandlayoutandbewhimsicalandartistic.Fewotherbuildingmaterialsoffthearchitectandengineersuchversatilityandscope.Concreteisstrongincompressionbutweakintension.Asaresult,cracksdevelopwheneverloads,orrestrainedshrinkageoftemperaturechanges,giverisetotensile
5、stressesinexcessofthetensilestrengthoftheconcrete.Inaplainconcretebeam,themomentsabouttheneutralaxisduetoappliedloadsareresistedbyaninternaltension-compressioncoupleinvolvingtensionintheconcrete.Suchabeamfailsverysuddenlyandcompletelywhenthefirstcrackforms.Inareinforcedconcretebeam,steelba
6、rsareembeddedintheconcreteinsuchawaythatthetensionforcesneededformomentequilibriumaftertheconcretecrackscanbedevelopedinthebars.Theconstructionofareinforcedconcretememberinvolvesbuildingafromofmoldintheshapeofthememberbeingbuilt.Theformmustbestrongenoughtosupportboththeweightandhydrostatic
7、pressureofthewetconcrete,andanyforcesappliedtoitbyworkers,concretebuggies,wind,andsoon.Thereinforcementisplacedinthisformandheldinplaceduringtheconcretingoperation.Aftertheconcretehashardened,theformsareremoved.Astheformsareremoved,propsofshoresareinstalledtos
