| 赤石特大桥结构体系研究 |
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| 引用本文： | 张铭,龙海滨,刘汉彪,贺耀北.赤石特大桥结构体系研究[J].公路工程,2020(3):49-54,104. |
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| 作者姓名： | 张铭 龙海滨 刘汉彪 贺耀北 |
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| 作者单位： | 湖南省交通规划勘察设计院有限公司;湖南大学土木工程学院 |
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| 基金项目： | 国家自然科学资金项目(51478180)。 |
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| 摘 要： | 赤石特大桥主桥为世界第一跨径高墩多塔混凝土斜拉桥,为合理设计该桥的结构体系,利用MIDAS Civil建立有限元模型,对索塔结构形式、索塔数量、塔梁墩连接方式、索塔刚度和主梁刚度等进行了比较分析。结果表明:赤石特大桥采用双曲线索塔是合理的,索塔数量、塔梁墩连接方式、索塔刚度和主梁刚度等均满足要求。
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| 关 键 词： | 高墩 多塔 斜拉桥 有限元法 结构体系 |
Research on Structural System of Chishi Bridge |
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| ZHANG Ming,LONG Haibing,LIU Hanbiao,HE Yaobei.Research on Structural System of Chishi Bridge[J].Highway Engineering,2020(3):49-54,104. |
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| Authors: | ZHANG Ming LONG Haibing LIU Hanbiao HE Yaobei |
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| Institution: | (Hunan Provincial Communications Planning,Survey&Design Institute CO.,LTD,Changsha,Hunan 410008,China;College of Civil Engineering,Hunan university,Changsha,Hunan 410016,China) |
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| Abstract: | The main bridge of Chishi Bridge is the longest span concrete multi-tower cable-stayed bridge with high piers in the world,in order to design a reasonable structural system of the bridge,the finite element model is established using the software MIDAS Civil,and then the structure and quantity of cable tower,the connection type of tower,main girder and pier,the rigidity of cable tower and main girder are compared and analyzed.The results show that the hyperbolic cable tower can be applied in Chishi Bridge,the other research factors satisfy the requirements. |
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| Keywords: | high pier multi-tower cable-stayed bridge finite element method structural system |
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