1、天津大學(xué)碩士學(xué)位論文下承式鋼坦拱橋設(shè)計(jì)承載力分析與試驗(yàn)研究姓名：楊亮申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：李忠獻(xiàn)劉旭鍇20090801AbstractThispaperistargetedatthethroughflatsteelarchbridge，whichisusedinFriendshipRoadbridgeofTianjinexpresswayengineeringAboutthisnewbridgetypether

2、earesomeproblemsinmechanicscharacteristic，structureandconstructiontechnologyInthispaperbearingcapacityanalysisandloadingtestarecarriedoutaboutthethroughflatsteelarchbridge1Basedonarchbridgedesigntheorystaticanddynamicper

3、formancesofthethroughflatsteelarchbridgeareanalyzedInthispaperfiniteelementmethodisemployedtosetuptheoverallstaticanddynamicmodelMechaniccharacteristicduringtheconstructionandcompletionstageunderstaticloadinganddynamiclo

4、adingisanalyzedThespectrumanalysisandtransientanalysisofbridgestructureunderseismicexcitationareperformedandtheresultsoftwodifferentmethodsarecomparedandanalyzed2Statictestanddynamictestareconductedonthethroughflatsteela

5、rchbridgeiIlitsservicephaseThestatictestanddynamictestprogramisformedinordertomeasuretheverticaldeflectionandstressofdifferentpartsofthestructureunderstaticloadingandthedynamiccharacteristicunderdynamicloadingVerticaldef

6、lectionofthestructurecombinedwithdifferentvehiclespeedisalsotestedandtheimpactcoefficientandthesuspenderforceareobtained越lttletestsaboveshowthatthemechaniccharacteristic(rigidityandbearingcapacity)ofthearchbridgeCanmeett

7、herequirementsofthespecificationThemethodandconclusionsCanbetakenasreferencesforsimilarbridgesindesignandconstructionKeyWords：ThroughFlatSteelArchBridge，StaticLoading，DynamicLoading，MechanicsCharacteristic，Suspenderforce