| 体外预应力混凝土桥梁的发展趋势 |
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| 引用本文： | 王廷臣. 体外预应力混凝土桥梁的发展趋势[J]. 中国市政工程, 2007, 0(1): 34-35 |
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| 作者姓名： | 王廷臣 |
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| 作者单位： | 河北交通职业技术学院,河北,石家庄,050091 |
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| 摘 要： | 体外预应力混凝土桥梁有维修及更换方便、旧桥加固不中断交通等优点,被广泛应用于桥梁结构的新建及加固。阐述了体外预应力混凝土桥梁结构的未来发展方向,包括高强度和高性能混凝土材料的应用、预应力筋的材料性能改进及体外预应力结构设计理论的进展。事实证明,体外预应力桥梁结构已成为现代预应力桥梁结构技术的重大发展和新技术标志。
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| 关 键 词： | 混凝土桥梁 体外预应力 桥梁结构 纤维加劲塑料 |
| 文章编号： | 1004-4655（2007）01-0034-02 |
| 收稿时间： | 2006-06-28 |
| 修稿时间： | 2006-06-28 |
The Developing Trend of Concrete Bridge by External Prestressing |
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| WANG Ting-chen. The Developing Trend of Concrete Bridge by External Prestressing[J]. China Municipal Engineering, 2007, 0(1): 34-35 |
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| Authors: | WANG Ting-chen |
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| Abstract: | The concrete bridge by external presressing is used largely in the construction and strengthening of bridge structure, which has several advantages such as convenient maintaining and replacing, not breaking traffic when strengthening old bridge and so on. Its developing trend is presented in this paper including the application of high strength and performance concrete, the material performance improvement of prestressed steel and the design theory development of external prestressing structure. The fact has proved that bridge structure by external prestressing has become the important development and advanced technique sign of modern bridge structure by external prestressing. |
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| Keywords: | concrete bridge external prestressing bridge structure FRP |
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