高速铁路技术
高速鐵路技術
고속철로기술
HIGH SPEED RAILWAY TECHNOLOGY
2014年
1期
68-72,97
,共6页
铁路%斜拉桥%刚构桥%A型墩%人字墩%设计
鐵路%斜拉橋%剛構橋%A型墩%人字墩%設計
철로%사랍교%강구교%A형돈%인자돈%설계
railway%cable-stayed bridge%rigid frame bridge%type A pier%“人”type pier%design
为解决铁路跨越复杂艰险山区河谷难题，为复杂艰险山区铁路修建选线提供更加灵活的操作空间，为跨越复杂艰险山区铁路提供强有力的技术支撑，设计研究了跨度（81＋135＋432＋135＋81）m半漂浮结构体系钢桁梁斜拉桥。桥梁最高墩高为139 m A型墩、跨度为（80＋3×144＋80）m的超高墩大跨铁路连续刚构桥；桥梁最高墩高为116 m 人字墩、联长777.7 m、跨度为（52＋7×96＋52）m的超高墩大跨铁路连续刚构桥梁结构。确定了大桥的横向自振周期值，进行了车桥耦合动力分析，满足了时速200 km客货共线铁路车辆的安全性及舒适性，桥梁的安全性。提出了适应艰险山区，横向刚度大、稳定性好、适应地形能力强、圬工量节省、经济性好、造型美观的A型（含人字）超高墩结构。
為解決鐵路跨越複雜艱險山區河穀難題，為複雜艱險山區鐵路脩建選線提供更加靈活的操作空間，為跨越複雜艱險山區鐵路提供彊有力的技術支撐，設計研究瞭跨度（81＋135＋432＋135＋81）m半漂浮結構體繫鋼桁樑斜拉橋。橋樑最高墩高為139 m A型墩、跨度為（80＋3×144＋80）m的超高墩大跨鐵路連續剛構橋；橋樑最高墩高為116 m 人字墩、聯長777.7 m、跨度為（52＋7×96＋52）m的超高墩大跨鐵路連續剛構橋樑結構。確定瞭大橋的橫嚮自振週期值，進行瞭車橋耦閤動力分析，滿足瞭時速200 km客貨共線鐵路車輛的安全性及舒適性，橋樑的安全性。提齣瞭適應艱險山區，橫嚮剛度大、穩定性好、適應地形能力彊、杇工量節省、經濟性好、造型美觀的A型（含人字）超高墩結構。
위해결철로과월복잡간험산구하곡난제，위복잡간험산구철로수건선선제공경가령활적조작공간，위과월복잡간험산구철로제공강유력적기술지탱，설계연구료과도（81＋135＋432＋135＋81）m반표부결구체계강항량사랍교。교량최고돈고위139 m A형돈、과도위（80＋3×144＋80）m적초고돈대과철로련속강구교；교량최고돈고위116 m 인자돈、련장777.7 m、과도위（52＋7×96＋52）m적초고돈대과철로련속강구교량결구。학정료대교적횡향자진주기치，진행료차교우합동력분석，만족료시속200 km객화공선철로차량적안전성급서괄성，교량적안전성。제출료괄응간험산구，횡향강도대、은정성호、괄응지형능력강、오공량절성、경제성호、조형미관적A형（함인자）초고돈결구。
In order to solve the problem of railway crossing the complicated and dangerous mountain valley,give more flexible operation space for line selection thereof and provide powerful technical support for railway crossing therein.De-sign and research have been made for steel truss girder cable-stayed bridge with a span of (81 +135 +432+135 +81) m semi floating structural system;the high pier railway bridge with the highest height of 139 m type A pier,with a span of (80+3X144+80)m high-rise pier and long-span continuous rigid frame structure the High Pier Railway bridge with the highest herringbone pier of 116 m,with 777.7 m (52 +7X96 +52),long span continuous rigid frame structure. The results show that the bridge transverse vibration period value and the vehicle bridge coupling dynamic meet the re-quirements of 200 km/h railway vehicle safety and comfort and the safety of bridge.The super high pier structure(inclu-ding“人”type pier),with stronger lateral stiffness,greater stability,more adoptable to land diversity,economic in both masonry and investment and beautipully shaped,can be used in the mountainous areas.
