| 再受力对粘钢加固混凝土梁的影响 |
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| 引用本文： | 赵延飞.再受力对粘钢加固混凝土梁的影响[J].国防交通工程与技术,2008,6(3):36-38. |
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| 作者姓名： | 赵延飞 |
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| 作者单位： | 中铁十三局集团第五工程有限公司,吉林长春,130000 |
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| 摘 要： | 根据钢筋混凝土梁的正截面破坏的作用机理，分析了不同卸荷条件下二次受力对粘钢加固混凝土梁界限相对受压区高度ξb的影响，推导出了再受力情况下（即不完全卸载与完全卸载条件下）ξb岛公式的差异。指出实际应用时应根据实际卸荷情况，考虑对ξb的影响决定粘钢量。
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| 关 键 词： | 钢筋混凝土梁 粘钢加固 二次受力 卸载条件 |
| 文章编号： | 1672-3953(2008)03-0036-03 |
| 修稿时间： | 2008年3月20日 |
On the Effects of Re-force on Steel-strengthened Reinforced Concrete Beams |
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| Zhao Yanfei.On the Effects of Re-force on Steel-strengthened Reinforced Concrete Beams[J].Traffic Engineering and Technology for National Defence,2008,6(3):36-38. |
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| Authors: | Zhao Yanfei |
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| Institution: | Zhao Yanfei(5th Engineering Co.ltd,13th Bureau Group of the Railway Building Corporation of China,Changchun 130000,China) |
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| Abstract: | According to the working mechanism of the normal section rupture of reinforced concrete beams,the effects of reforce on the height of the limited pressurized region of steel-strengthened concrete beams under different unloading conditions(that is,under both the incompletely unloading and completely unloading conditions)are analyzed in the paper,with the differences in the height formulae inferred.It is also pointed out that in practical application,how much strengthening steel should be used will be decided... |
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| Keywords: | reinforced concrete beam steel-strengthened reforce unloading condition |
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