| 桥梁加固分阶段受力抗弯承载力极限状态分析 |
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| 引用本文： | 孟凡强,周增国,张强.桥梁加固分阶段受力抗弯承载力极限状态分析[J].交通科技,2007(1):10-12. |
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| 作者姓名： | 孟凡强 周增国 张强 |
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| 作者单位： | 1. 武汉理工大学交通学院,武汉,430063
2. 曲阜市公路局,曲阜,273100 |
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| 摘 要： | 粘贴钢板或其他纤维复合材料对梁的受拉薄弱区进行补强是桥梁加固的主要方式之一。粘贴钢板加固一般采用带载加固，其承载力应按两阶段受力构件计算。在基本假设的基础上．针对桥梁构件两阶段受力的特点．对T形截面梁，分析粘贴钢板加固桥梁构件正截面抗弯承载力的计算公式和适用条件，并给出极限状态加固设计的方法和步骤。
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| 关 键 词： | 粘贴钢板 桥梁加固 分阶段受力 正截面承载力 极限状态 |
| 修稿时间： | 2006-09-08 |
Analysis of Ultimate Stage Load-carrying Capacity of Strengthened Bending Member of Bridges |
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| Meng Fanqiang,Zhou Zengguo,Zhang Qiang.Analysis of Ultimate Stage Load-carrying Capacity of Strengthened Bending Member of Bridges[J].Transportation Science & Technology,2007(1):10-12. |
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| Authors: | Meng Fanqiang Zhou Zengguo Zhang Qiang |
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| Institution: | 1. Wuhan University of Teehnology,Wuhan 430063,China; 2. Qufu Highway Bureau Shandong.Qufu 273100,China |
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| Abstract: | It is one of the main methods in bridge reinforcement that bonding steel plate or other fiber compound material is used to strengthen load-carrying capacity of weak member of bridges. The load- carrying capacity of bonding steel plate should be calculated by the 2-stage loading method. According to the characteristic of 2-stage loading , the calculation method and expressions of load-carrying capacity of cross section of strengthened bending member and its applications are analyzed on the basis of basic supposes. The design method and calculation steps of strengthened bridges in the ultimate states are given. |
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| Keywords: | bonding steel plate strengthening of bridges stage loading capacity of cross section ultimate state |
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