纤维沥青混凝土粘弹性能研究

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1、Y10371G2学位论文纤维沥青混凝土粘弹性钱研究侯金成指导教师赵颖华教授申请学位级别工学硕士专业名称道路与铁道工程学位授予单位大连海事大学2007年3月英文摘要Studyonvisco-elasticpropertyoffiberreinforcedasphaltconcreteAbstractThehighwayconstructiondevelopsrapidlyoveryearsinChina，andthetotalmileageofhighwayhasalreadyoccupiedthesecond

2、placeoftheworld．Ontheotherhand，itisdifficulttoreachitsdesignedlifeformostoftheasphaltljavementsduetotheearlydamageofhighway．Fiberreinforcedasphaltconcretecomparedwithordinaryasphaltconcretehasbeaerperformanceandtheadditionoffibercandecreasecrackandincreaset

3、helifeofpavement．Alloftheseadvantagesoffiberreinforcedasphaltconcretehavebeenrealizedinmanytestsandprojects．Basedonthetheoryofmicro—mechanicsandviseo-elasticmechanics，thispaperworksattheresearchofrelaxmodulusoffiberreinforcedasphaltconcrete，theviseo—elastic

4、solutionofeffectivemodulusforfiberasphaltconcretehasbeenestablished．TheinfluenceoffiberonPoisson’sratioofasphaltconcreteusingelasticandviseo-elastictheoryhasbeendiscussed，andtherelaxpropertiesofseveralconlmonfibersreinforcedasphaltconcreteareanalyzed．Specim

5、enandpavementmodeloffiberreinforcedasphaltconcretehavebeensetupbymeansofABAQUSbasedonthevisce—elasticsolutionofeffectivemodulusforfiberreinforcedasphaltconcrete．Theresponseofasphaltconcreteandfiberreinforcedasphaltconcreteunderstaticanddynamicperiodloadisan

6、alyzed．Theeffectofsmileanddynamiccreeppropertyofasphaltconcreteonroaddeflectionisstudiedin45。C。Thecomparisonofthetheoreticalsolutionfromtheproposedequationandtheexperimentaldatashowsgoodconsistencyatthefibercontentlessthan0．20％．ThePoisson’Sratioincreaseswit

7、hthedecreasesofrelaxmodulusduringtheprocessofrelaxationforfibersreinforcedasphaltconcrete．Thedeformationofasphaltconcretespecimenunderhalfrectangleperiodicloadissmallerthanthatunderstaticload．Creepdeformationofasphaltconcretehasremarkableinfluenceonthedefle

8、ctionofpavementunderstaticanddyllamicload．TheaseoffiberCallobviouslyreducethedeformationofpavementforstaticload．Thedeformationofasphaltpavementunderhalfrectangle英文摘要periodicloadiSsmallerthanthatunderst