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1、石家庄铁道大学四方学院毕业论文Epoxyasphaltconcretepavingonthedeckoflong-spansteelbridgesUndertheinfluenceoftrafficload,windload,temperaturechangeandotherfactors,stressanddeformationofpavingsystemisverycomplicatedwhenpavingthelong-spanorthotropicsteelbridgedeck.Sotheweightof
2、thepavingstructureshouldbeverylightandthepavingmaterialshouldhavethepropertiessuchashighbondingpower,impermeability,andsoon.Atpresent,pavingprojectsareprimarilyclassifiedintofourtypes:Gussasphaltproject,mostlyusedinGermanyandJapan;masticasphaltproject,typical
3、lyinEngland;stonemasticasphalt(SMA),akindofmodifiedasphaltlatelyusedinGermanyandJapan;andepoxyasphalt,mostlyadoptedinUSA.Epoxyasphaltconcreteisakindofhighstrengthandflexiblematerialbyaddingthermosettingepoxideresinandsolidifiedagentintoasphalt.Asapavingmateri
4、al,epoxyasphaltismainlyappliedforsteelbridgedeckinUSA,CanadaandAustralia,especiallyinUSA.ButthismaterialhasneverbeenusedforpavingbridgedeckinChinauntilitsapplicationintheSNYRB.Theseyears,theconstructionoflong-spanbridgesinChinahasdevelopedveryfast.Manypavingt
5、echniquesofJapanandEnglandhavebeenadoptedinconstructingbridges.However,thesetechniquesarenotcompletelyapplicablefortheparticularclimateandtrafficconditionsinChina.Furthermore,thesteelgirderboxstructure,onceuniversallyusedbyforeigncountries,hasbeenappliedinlon
6、g-spanbridgesrecentlyconstructedinChina,andthehighesttemperatureofthepavingofbridgedeckinmostareasofChinacanreach70℃.Sothepavingmaterialmustpossessthehighertemperaturestability.Thepavinglayerofmanybridgeswasdamagedshortlyafterbeingputintouse.Infact,thepavingt
7、echniqueofsteelbridgedeckdependstoalargeextentonthestructureofsteelbridgedeckandnaturalenvironment.DeepandsystematicresearchonpavingofsteelbridgedeckisverylimitedinChina.Inthispaper,thecompositiondesignofepoxyasphaltconcrete,itscharacteristicsandserviceperfor
8、manceofthemixture,bondperformanceofepoxyasphaltconcretewithsteelplate,thefatiguetestofcomplexgirderformedbythesteelplateandepoxyasphaltconcrete,arefirstlyandsystematicallystudied.Inadditi
