| 荆岳长江公路大桥北汊航道桥上部构造设计及计算研究 |
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| 引用本文： | 张铭,刘明虎,刘化图.荆岳长江公路大桥北汊航道桥上部构造设计及计算研究[J].世界桥梁,2009(4). |
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| 作者姓名： | 张铭 刘明虎 刘化图 |
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| 作者单位： | 1. 湖北省交通规划设计院,湖北,武汉,430051
2. 中交公路规划设计院,北京,100088 |
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| 摘 要： | 荆岳长江公路大桥北汊航道桥采用主跨154 m七跨一联的预应力混凝土连续箱梁桥.针对大跨度梁桥容易出现的跨中下挠和开裂问题,就设计阶段所做的分析研究工作进行介绍.
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| 关 键 词： | 预应力混凝土桥 连续箱梁 设计优化 耐久性 研究 |
Study of Design and Calculation of Superstructure of North Shipping Channel Bridge of Jingyue Changjiang River Highway Bridge |
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| ZHANG Ming,LIU Ming-hu,LIU Hua-tu.Study of Design and Calculation of Superstructure of North Shipping Channel Bridge of Jingyue Changjiang River Highway Bridge[J].World Bridges,2009(4). |
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| Authors: | ZHANG Ming LIU Ming-hu LIU Hua-tu |
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| Institution: | ZHANG Ming1,LIU Ming-hu2,LIU Hua-tu2(1.Hubei Provincial Communication Planning and Design Institute,Wuhan 430051,China,2.ChinaHighway Planning & Design Institute(HPDI) Consultants,Inc.,Beijing 100088,China) |
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| Abstract: | The north shipping channel bridge of Jingyue Changjiang River Highway Bridge employs a prestressed concrete(PC) continuous box girder bridge that has main spans each being 154 m and seven spans arranged in one continuous unit.In the light of the problems that the long span PC box girder bridges are prone to the midspan deflection and cracking,the relevant analysis and study having been made for the shipping channel bridge at the design stage are presented. |
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| Keywords: | prestressed concrete bridge continuous box girder design optimization durability study |
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