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时间:2019-05-11
《太原市机场路祥云桥桥塔设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、桥梁建设2012年第42卷第3期(总第213期)94BridgeConstruction,Vo1.42,No.3,2012(TotallyNo.213)文章编号:1003—4722(2012)03—0094—07太原市机场路祥云桥桥塔设计王文斌,王清泉,李春凯,戴利民,徐利平(1.同济大学土木工程学院,上海200092;2.同济大学建筑设计研究院(集团)有限公司,上海200092)摘要:太原市机场路祥云桥主桥为独塔混合梁斜拉桥,桥塔由3根塔柱组成,空间呈火炬造型,在桥面以上为钢塔柱,在桥面以下为混凝土结构。钢塔柱内部加劲肋
2、按照半刚性加劲肋的原则设计;塔柱联结系采用刚接方案,3根塔柱之间设置20道空间水平联结系;在钢塔柱与混凝土塔柱间设置钢一混凝土结合段(高7.05m),主要传力构件为PBL剪力键;塔顶钢塔帽将3根塔柱顶端固结,其下段为连接塔柱的重要受力构件,上段为装饰构造;斜拉索在中塔柱内采用双锚箱的方式锚固,在边塔柱内采用锚梁的方式锚固;斜拉索向塔柱圆弧外侧拉伸锚固;3根塔柱采用整体式基础方案,承台间设置系梁。关键词:斜拉桥;桥塔;钢塔柱;结合段;联结系;桥梁设计中图分类号:U448.27;U442.5文献标志码:ADesignofPyl
3、onofXiangyunBridgeonAirportRoad,TaiyuanCityWANGWen—bin’,WANGQing—quan。,LIChun—kai,DAILi—min,XULi—ping(1.CollegeofCivilEngineering,TongjiUniversity,Shanghai200092,China;2.ArchitecturalDesign&ResearchInstitute(Group)Co.,Ltd.,TongjiUniversity,Shanghai200092,China)Abs
4、tract:ThemainbridgeoftheXiangyunBridgeonAirportRoad,TaiyuanCityisasinglepylonhybridgirdercable—stayedbridge.Thepylonofthebridgeiscomposedof3pyloncolumnsandspatiallyitisconfiguratedlikeatorch.ThepartofthepylonabovethedeckisofthesteelcolumnsandthatunderthedeckiSofth
5、econcretestructure.Thestiffenersinsidethesteelcol—umnsaredesignedontheprincipleofsemi—rigidstiffenersandthetiesystemsofthecolumnsareconnectedbywayofrigidfixity.Amongthe3columns,totally2Ospatialhorizontaltiesaresetandinbetweenthesteelcolumnsandconcretestructure,ast
6、eelandconcretejointsection(7.05mhigh)isset,inwhichtheprincipalloadtransferringcomponentsarethePBLshearstuds.The3pyloncolumnsarerigidlyfixedattheirtopsbyasteelcap,ofwhichthelowerpartistheimpor—tantloadbearingcomponentforfixingofthecolumnswhiletheupperpartisthedecor
7、ativestruc—ture.Thestaycablesareanchoredinthemiddlepyloncolumnbythedoublesteelanchorboxesandinthesidecolumnsbytheanchorbeamsandthecablesaretensionedoutwardstheroundarcofthecolumnsandanchored.The3columnsareallsupportedonanintegralfoundation,thepilecapsofwhicharecon
8、nectedbythetiebeams.Keywords:cable—stayedbridge;pylon;steelpyloncolumn;jointsection;tiesystem;bridgedesign1工程概况汾河东岸的太茅公路,是太原市机场路跨越汾河的太原市祥云桥西起汾河西岸的新晋祠路、东
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