| 开封黄河公路大桥主桥设计 |
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| 引用本文： | 宋新安.开封黄河公路大桥主桥设计[J].交通标准化,2009(15):211-214. |
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| 作者姓名： | 宋新安 |
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| 作者单位： | 河南省交通规划勘察设计院有限责任公司,河南郑州450052 |
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| 摘 要： | 以大广高速开封黄河公路大桥主桥为例，对部分斜拉桥主桥的构造特点分析和参数计算表明，部分斜拉桥主梁刚度较大。当修建斜拉桥桥塔受到限制、多跨斜拉桥刚度较难满足要求，而部分斜拉桥桥梁刚度完全能够满足要求时，采用部分斜拉桥也是一种很好的选择。
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| 关 键 词： | 部分斜拉桥 箱梁 斜拉索 拉索应力变幅 桥塔 |
Main Bridge Design of Kaifeng Yellow River Bridge |
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| SONG Xin-an.Main Bridge Design of Kaifeng Yellow River Bridge[J].Communications Standardization,2009(15):211-214. |
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| Authors: | SONG Xin-an |
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| Institution: | SONG Xin-an (Henan Provincial Communications Planning Survey ＆ Design Institute Co., Ltd., Zhengzhou 450052, China) |
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| Abstract: | Taking the main bridge of the Yellow River Bridge of Daqing--Guangzhou expressway for example, the structural characteristics and parameters of cable-stayed bridge are analyzed and the results show that the main beam of cable-stayed bridge has a more rigidity. When bridge tower is limited and the rigidity of multi-span cable-stayed bridge cannot meet the demand, sometimes extradosed cable-stayed bridge can meet the demand. In this context, extradosed cable-stayed bridge is a good choice. |
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| Keywords: | extradosed cable-stayed bridge box girder cable-stayed bridge stress amplitude bridge tower |
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