曲線矮塔斜拉橋的結構性能及構造設計研究.pdf

1、東南大學碩士學位論文曲線矮塔斜拉橋的結構性能及構造設計研究姓名：許磊申請學位級別：碩士專業(yè)：土木工程；橋梁與隧道工程指導教師：丁漢山20110620ABSTRACTStudyonTheStructuralBehaViorAndStructuralDesignofCurvedExtradosedCable—StayedBridgeGraduate：XuLeiSupen，isor：ProfessorDingHan—shanSoutheaSt

2、UniVersityABSTRACTExtradosedcablestayedbridgewhichisfeaturedinbeautifulshape，distinctiVestmcturalcharacteristicsandthedualadvantagesofgirderandcable—stayedbridge，isVigorouslydeVelopedathomeandabroadinrecentyearsDespiteth

3、efactthatthereareeXtensiVeresearchesconcemingonextradosedcable—stayedbridgesbothdomesticallyandabroad，butmostofthemalmostfocusonthelineareXtradosedcable—stayedbridge，whiletherese甜chonthecurvedextradosedcablestayedbridgei

4、srarelyTherefore，there5earchonthestmcturalbehaViorandstructuraldesignofcurvedeXtradosedcable—stayedbridgeisnotonlyfavorableforexpandingthescopeof印plicationofextradosedcablestayedbridge，butalsof打orableforprovidingtechnica

5、lsupportstothedesignandconstructionofcuⅣedexnadosedcable‘stayedbridgeBaLsedonthestatisticalanalysisofSn_ucturalformsandstmcturalparameterSofthebuiltextradosedcable—stayedbridges，thispaperdrawsdesignrangesofstmcturepar鋤et

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9、girder，tower’cableandpierwereobtainedbycomparingandanalyzingthesensitivitiesofa_bove—mentionedfiVestmcturalparametersWiththeproiectofsomecurvedeXtradosedcable—stayedbridgeastheeXample，onefiniteelementanalysismodelwaSbuil

10、tThroughtheanalysisofthee保：ctfromthechangeofthosethreestmctural‘parameterSofthecurvedeXtl謝osedcable—stayedbridge，includinglengthofnon—cableareaatthetowerbottom，len舀hofnon—cableareainthecenterofspanandtheratioofthebothlen

11、gthsa_boVementioned，theeff色ctonstructuralbehaviorresultingfromofthelengthchangeofnoncableareahaSbeenconcludedIncaSeofnochangeinthelen舀hofnoncableareainthecenterofspanorthatattowerbo仕om，byuSeofcalculatiOnanalysis，the11Jle

12、softhee行ectonstmcturalbehaViOrresultingfromthechangeOfdistancebetweenthecablewerepresentedinthispaperSomereferencesandexperiencesfromtheresearchofthispapercanbeproVidedtothest九Jcturaldes逸nofcurvedeXtradosedcablestayedbri