京滬鐵路南京段橋梁橫向振動問題和滁河特大橋綜合整治探索.pdf

1、西南交通大學碩士學位論文京滬鐵路南京段橋梁橫向振動問題和滁河特大橋綜合整治探索姓名：史良洪申請學位級別：碩士專業(yè)：建筑與土木工程指導教師：趙人達馬俊欽2002.5.1論文■疊ABSTRACTSincetheimplementationoftrainspeedliflingprogramofRailwayDepartment，bothcarandbridgedynamicfunctiontothetrainrunningonthebrid

2、gehasbecomeamoreimportantissueinparticularbecauseoftheinsufficientstrengthandrigidityofpartofbridge’shorizontalstructure，thehorizontalvibrationhastoppedthemainobstacletospeed1iRingwhenrustlingtrainpassingthebridgeThisthe

3、sisisbasedonthestudyandresearchofthehorizontalvibrationproblemofNankingsectionofJinhuRailroad1AfteraseriesofcomprehensivetestingandstructureanalysistovariousbridgesontheGuangshe，Huning，Jinqin，Shenshan，JingguangInouropini

4、on，thekeyproblemsoftherailroadbridgeareasfoBows：①bridgeconstructionisnotwellattherequestoftherailroadtrainspeed1iftprimarilybecauseoflowdynamicpropertyofthehorizontalframe；②thebadliabilityofthebridgesstructure，③concreteb

5、eam。shorizontalplankcouplingform；④thelowcapacityofsomeofthebridgesPinpointingtheexistingproblems，webringupthecorrespondingcountermeasures2Basedonaseriesoftesting，examination，researchandanalysisconductedhowtoIifithespeedo

6、nNankingSection，JinhuRoad，weexplorethepossibilitiesofsolvingtheobstaclesofNankingsegmentofbridgesforrealizingrailroadspeedliftsoonduetoitssubframesandsteeiplatebeams，Weproducedauthenticandconvincingdata3Afterthevibration

7、testandanalysisontheChuheBridge，wedraftedteinforcethebridge‘sdouble—pillartypelightbuttressesWeaccomplishedthetestingbuttressereinforcementwhileunderthepremisesofwithoutrailroadbreak—offItoutlinedoneoftheopticalmethodsto

8、reinforcingthedoublepillarbuttressesofthewholebridge4Regardingthevariousdiseases(defects)generatingfromtheChuheBridge，Weappliednewtechnique，newmaterials，newprocedurestoensurethestructurestabilityandsoundbridgestructureap