| 128m预应力混凝土梁拱组合桥梁设计 |
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| 引用本文： | 陈铭.128m预应力混凝土梁拱组合桥梁设计[J].铁道建筑技术,2009(6):31-34. |
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| 作者姓名： | 陈铭 |
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| 作者单位： | 中铁第五勘察设计院集团有限公司桥梁院,北京,102600 |
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| 摘 要： | 预应力混凝土梁拱组合桥梁具有建筑结构低、桥型美观、施工便捷的优点，拱的水平推力由预应力混凝土梁承担，对比体外系杆拱桥具有刚度大、变位小的优点，并且耐久性大大提高。结合工程实例，介绍预应力混凝土梁拱组合桥梁的设计概况、主要设计参数、构造细节、计算方法，以及斜交跨铁路顶推施工需要注意的问题。
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| 关 键 词： | 梁拱组合 钢管拱 顶推施工 设计 |
Design of 128 m Combination Bridge with Prestressed Concrete Beam and Arch |
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| Chen Ming.Design of 128 m Combination Bridge with Prestressed Concrete Beam and Arch[J].Railway Construction Technology,2009(6):31-34. |
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| Authors: | Chen Ming |
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| Institution: | Chen Ming (China Railway Fifth Survey and Design Institute Group Co. Ltd. , Beijing 102600, China) |
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| Abstract: | The combination bridges with prestressed concrete （PSC） beam and arch have the advantage of lower height, beautiful appearance and convenient construction. For PSC beam counterpoises the longitudinal thrust of arch, comparing to tied arch bridge, they have higher stiffness, smaller deflection and better durability. With the practical engineering design, main design parameters, structure details, calculating methods and some problems to be considered in incremental launching construction cross the railway bridge are introduced in this paper. |
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| Keywords: | combination bridge with beam and arch design CFST arch bridge incremental launching construction |
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