鋼纖維混凝土在橋面鋪裝工程中的應用技術研究.pdf

1、授予單位代碼!Q』2學號或申請?zhí)朡2Q!籩密級——鄭州大學碩士學位論文論文題目：鈕紅縫遺筮在援面銦筮王捏生鰉學科門類：王堂專業(yè)名稱：蚩互猩導師姓名、職稱：壓壘塑熬援二零零五年五月九B鄭州人學碩fj學位論文AbstraetAbstractInrecentyears，withtheincreaseoftrafficvolumeandheavyvehiclethedeteriorationofbridgedeckpavementiscompa

2、rativelysevererandthemaintenanceperiodisbecomingincreasinglyshorterDamagesofbridgedeckpavementemergesoonafteropeningtotraffic，suchaslongitudinal，lateralanddiagonalcracksaswellaschuckhole，crackleandpeelingTheseproblemsnot

3、onlydisturbtrafficsafetyinfluenceaestheticsofbridgedeck，butalsobringaboutbiggisheconomiclossSteelfiberreinforcedconcrete(referredasSFRCthereafter)isakindofnewconstructionalmaterialandpossessesmanyeximiousperformancesOwin

4、gtofavorablecrackresistance，flexuraltoughness。highimpactresistanceperformancesandSOon，SFRCisextensivelyusedinconstructionengineeringEngineeringpracticesshowthatwhenSFRCisusedinarchitectureitnotonlyeffectivelyreducesallki

5、ndsofcracks，deferscrackappearance，butalsoenhancesbondingstrengthofarchitecturestructure，elongatesservicelifeofconstruction，andthereforestrengthensstabilityandreliabilityofmonolithicconstructionCombiningpracticalengineeri

6、ngmaterialpropertiesofSFRCandmechanicalcharacteristicsandbuildingtechnologyofbridgedeckpavementandSOonaresystematicallystudiedinthisthesisandprincipalresearchfindingsobtainediSasfoIlows：1Throughdatasearchesandpreliminary

7、experimentalstudy，strengtheningmechanism，technicalperformanceandstaticloadmechanicscharacteristicofSFRCareprobedintoBased0nwhich，throughexperimentresearchofcompressivestrength，tensilesplittingstrength，bendingstrengthandf

8、lexuraltoughnessoftwokindsofSFRC，theinfluenceofsteelfibercontentsandtypesonconcretemechanicsperformanceareanalyzed，andconsequentlyreliabletechnicalfoundationissuppliedforascerlainingSFRCmixratiosuitableforbridgedeckpavem

9、entcharacteristics2Throughstaticexperimentsoffullscaleone—wayandtwo—waySFRCandreinforcedconcrete(referredasRCthereafter)slabsunderconcentratedload，simplysupportedalongitstwooppositeedges，theirmechanicalpropertiesandfailu

10、remodesarediscussedBycomparingperformancedifferencesofthetwokindofconcreteslabs，performanceinfluenceofsteelfiberonresistingandblockingfissureaswellastoughnessofconcretemembersinflexurearedetailedlyanalyzedBytransformingl