| 拱梁协作体系桥设计 |
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| 引用本文： | 李盼到,李照明,刘慕清,米曦亮.拱梁协作体系桥设计[J].世界桥梁,2010(4). |
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| 作者姓名： | 李盼到 李照明 刘慕清 米曦亮 |
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| 作者单位： | 北京市市政工程设计研究总院; |
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| 摘 要： | 邓家窑桥主跨长158 m,采用中承式拱桥与三角框架支撑的简支梁桥协作体系,以提高结构的跨越能力.经过设计方案比选,拱肋采用钢一混组合结构,即两侧拱脚段采用混凝土箱形断面,跨中段为钢箱断面;该桥拱脚水平推力由系杆及群桩基础共同承担,经过优化设计采用横桥向3排桩顺桥向4排桩基础+15 000 kN系杆力的组合形式;桥面系采用格构式钢一混组合梁,以减小上部结构重量,并方便施工.该桥经过10个月的施工工期,成桥景观效果、工程经济性较好.
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| 关 键 词： | 中承式拱桥 协作体系 拱肋 桥面系 钢-混组合结构 桥梁设计 |
Design of an Arch and Girder Coordination System Bridge |
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| LI Pan-dao,LI Zhao-ming,LIU Mu-qing,MI Xi-liang.Design of an Arch and Girder Coordination System Bridge[J].World Bridges,2010(4). |
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| Authors: | LI Pan-dao LI Zhao-ming LIU Mu-qing MI Xi-liang |
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| Institution: | LI Pan-dao,LI Zhao-ming,LIU Mu-qing,MI Xi-liang(Beijing Municipal Engineering Design and Research Institute,Beijing 100082,China) |
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| Abstract: | The main span of the Dengjiayao Bridge is 158 m long.The bridge was designed as a coordination system of half-through arch bridge and simply-supported girder bridge supported by triangular frames for the purpose of enhancing the spanning capacity of the structure.Through comparison of the different proposed design of the bridge,it was determined that the arch ribs would be used with the steel and concrete hybrid structure,namely the sections of the structure close to the arch springs at both sides were of c... |
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| Keywords: | half-through arch bridge coordination system arch rib floor system steel and concrete composite structure bridge design |
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