1、重慶交通大學碩士學位論文矩形鋼管混凝土桁架結構在連續(xù)剛構橋中的應用研究姓名：和兆建申請學位級別：碩士專業(yè)：橋梁與隧道工程指導教師：劉山洪20110413ABSTRACTConcretefilledsteeltubetrussbridgehasmoreandmorebeenreliedbythemajoritycivilengineeringdesignersforitslightweightconvenientconstructionl

2、owcostandgoodmechanicalpropertiesInChinaZidongBridgeinNanhaiofGuangzhouXiangiiabaBridgeinHubeiandWanzhouBridgeinChongqingareconcretefilledsteeltubellUSSbridgeswhichaleusedwithconcretefilledsteeltubeComparingtothecircular

3、steeltube，rectangularsteeltubehasmanyadvantages，suchaseasytobecutsimplenodesualcture，convenientconstructioneasytobeconnectedwiththebridgedeckandbendingstiffness，otcBaseontheconcretefilledsteeltubeInlSSbridgeswhichhavebee

4、nbuiltandthedomesticandforeignscholars’studiesoftherectangularconcretefilledsteeltube，thispaperproposeanewkindofconcretefilledsteeltubetrussbridgeInthispaperaresearchworkmainlyfocusonthefollowingaspects：OThemechanicalcha

5、racteristicsoftheconcretefilledsteeltubestructure，especiallytherectangularconcretefilledsteeltubestructureandhavebeenbuiltoftheconcretefilledsteeltubeUUSSbridgearein由roducedproposearectangularconcretefilledsteeltube11“US

6、Sbridgeinthepotentialapplications②ThestructureofthesteeltrussbridgeWasintroducedtheconcretefilledsteeltubeIIUSSbridgeswasanalyzedwhichhavebeenbuilt③Therectangularconcretefilledsteeltube’Strussandnodes’typeandselectionoft

7、hecalculatemodelaresystematicanalyzedwhichprovideaverygoodbasicoftrialdesigntheoryfortherectangularconcretefilledsteeltuben佻scontinuousrigidframebridge@TakingtheYuexiRiverbridgeastheengineeringbackgroundtrytodesignakindo

8、fsamespanofsmalleccentricandlargeeccentricrectangularconcretefilledsteeltubetrusscontinuousrigidframebridge，analyzetheultimatebearingcapacityofconstructionprocessandinthebridgestate，andgetareasonableforcemodeoftherectang

9、ularconcretefilledsteeltubeUrllsscontinuousrigidfTamebridge@NodeisakeyforcepartoftheUrllssbridge，thatdeterminesstucturebehavioroftheoverall血USSThispapertrytodesignasuitablenodeoftherectangularconcretefilledsteeltubetruss

10、continuousrigidframebridge，andcheckitsultimatelimitstateandthenodeintensityofweldingThroughthedesignoftherectangularconcretefilledsteeltubetrusscontinuousrigidfralTlebridge’Sstressanalysis，economiccomparisonandnodedesign