| 体外预应力梁桥的设计 |
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| 引用本文： | 何维利. 体外预应力梁桥的设计[J]. 特种结构, 2003, 20(4): 75-79 |
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| 作者姓名： | 何维利 |
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| 作者单位： | 北京市市政工程设计研究总院,北京,100045 |
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| 摘 要： | 本文介绍了体外预应力梁桥的性能、特点及设计计算方法。分析了体外预应力梁桥的抗震性能特点;提出了结构的设计要点和设计原则;并给出了体外预应力钢筋和锚具设计中疲劳、振动、钢筋弯折应力和耐久性等问题的处理方法。
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| 关 键 词： | 体外预应力 动力特性 锚具 |
The Design of Externally Prestressed Concrete Beam Bridges |
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| He Weili. The Design of Externally Prestressed Concrete Beam Bridges[J]. Special Structures, 2003, 20(4): 75-79 |
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| Authors: | He Weili |
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| Abstract: | The behavior and design of externally prestressed concrete beam bridges are studied in the paper. It is stressed to discuss the aseismatic behavior. Some design rules and key points of structural design are proposed. At the same time , the mixed reinforcement for an externally prestressed concrete beam is suggested. It is based on design experiment, and is a technical measurement. The fatigue and vibration have to be considered carefully when to design the prestressed tendon and anchor. It also has to pay attention that the bent stresses and tendon ductility. |
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| Keywords: | Externally prestressed concrete Aseismatic behavior Anchor |
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