桥梁建设2023年第53卷第S1期(总第283期)BridgeConstruction,Vol.53,No.SI,2023(TotallyNo.283)134文章编号：1003-4722(2023)Sl-0134-06DOI：10.20051/j.issn.1003-4722.2023.SI.019黄河三峡大桥桥型方案比选薛有利1,何博文2,林阳2(1.河南省济新高速公胳有限公司，河南郑州450046；2.中交第二公胳勘察设计研究院有限公司，湖北武汉430056)摘要：黄河三峡大桥为河南省济源至新安高速公路的控制性工程。综合考虑地形、地质和环保等方面，提出单跨跨径510m的双塔悬索桥、主跨510m独塔回转缆悬索桥(桥塔置于南岸、主缆在北岸锚碇处通过转索鞍回转锚固)及计算跨径435m中承式钢管混凝土拱桥3个方案，并对受力性能、建设规模、环境影响、施工难度等进行比较。结果表明：3个方案静、动力性能均能满足规范要求，独塔回转缆悬索桥经济性不占优势，但施工难度最低、工期可控，且该方案在北岸仅设置覆表式重力锚，取消了桥塔，很好地解决了地质遗迹保护区环保要求高、构造物设置受限的问题，与隧道衔接性好，作为推荐方案。关键词：独塔回转缆悬索桥;覆表式重力锚；桥型方案；受力性能；有限元法；桥梁设计中图分类号：U44&25；U442.5文献标志码：ABridgeTypeSelectionforYellowRiverThreeGorgesBridgeXUEYou-li1,HEBo-wen2,LINYang2(1.HenanJixinExpresswayCo.,Ltd.,Zhengzhou450046,China；2.CCCCSecondHighwayConsultantsCo.,Ltd.,Wuhan430056,China)Abstract:TheYellowRiverThreeGorgesBridgeisacontrolprojectoftheJiyuan-Xin/anExpresswayinHenanProvince.Toaccommodatethespecifictopographicandgeologicalconditionsatthebridgesiteaswellastheenvironmentalprotectionrequirements,threebridgetypeswereproposed,includingthetwo-towersuspensionbridgewithamainspanof510mandwithhangercablesarrangedonlyinmainspan,one-towersuspensionbridgewithamainspanof510m(wherethetowerislocatedatthesouthbank,themaincablesareanchoredtothenorth-bankanchorageinaloopingmannerviaadeviationsaddle),andahalf-throughconcrete-filledsteeltubulararchbridgewithacalculatedmainspanlengthof435m.Thethreeoptionswerecomparedfromperspectivesofloadbearingperformance,constructionscope,environmentalimpactandconstructionchallenges・Itisshownthatallthethreeoptionsmeetthestaticanddynamicpropertyrequirementsinthecode.Theone-towersuspensionbri...
