| 大跨径钢-混凝土组合箱梁桥的设计 |
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| 引用本文： | 张建勋,王纯. 大跨径钢-混凝土组合箱梁桥的设计[J]. 钢结构, 2010, 25(12): 31-34 |
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| 作者姓名： | 张建勋 王纯 |
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| 作者单位： | 河南海威工程咨询有限公司,郑州450008 |
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| 摘 要： | 东莞白沙立交主线桥跨广深高速公路第2联,是一座大跨径钢-混凝土组合箱梁桥,100m单拱主跨跨越广深高速。桥下净空不小于5.5m,箱梁高度受到一定限制,且该桥平面位于半径600m的圆弧上。设计、施工难度大。以该桥为工程背景,介绍此类桥梁设计要点。
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| 关 键 词： | 组合箱梁 大跨度 体外预应力 补偿收缩混凝土 |
THE DESIGN OF LONG-SPAN STEEL-CONCRETE COMPOSITE BOX GIRDER BRIDGE |
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| Zhang Jianxun,Wang Chun. THE DESIGN OF LONG-SPAN STEEL-CONCRETE COMPOSITE BOX GIRDER BRIDGE[J]. Steel Construction, 2010, 25(12): 31-34 |
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| Authors: | Zhang Jianxun Wang Chun |
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| Affiliation: | (Henan Haiwei Engineering Consulting Co.Ltd,Zhengzhou 450008,China) |
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| Abstract: | The main span of Dongguan White Baisha Interchange Bridge is a long-span steel concrete box girder bridge,the main span 100 m is a single-arch crossing Guangzhou-Shenzhen Expressway,the bridge headroom is no less than 5.5 m,the box height is limited to some extent,and its plane is in the circular curve with a radius of 600 m.The design and construction are very difficult,this article is based on the bridge to introduce the design points of this sort of bridge. |
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| Keywords: | box girder combination long-span external prestressing compensating contraction concrete |
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