| 玻璃纤维布加固的钢筋混凝土梁试验研究与抗弯承载力计算 |
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| 引用本文： | 王文炜,李果.玻璃纤维布加固的钢筋混凝土梁试验研究与抗弯承载力计算[J].东南大学学报,2004,20(2):229-234. |
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| 作者姓名： | 王文炜 李果 |
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| 作者单位： | [1]东南大学交通学院，南京210096 [2]大连理工大学土木系，大连1160231 |
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| 摘 要： | 对9根玻璃纤维布加固的钢筋混凝土梁和3根对比梁进行了抗弯性能试验研究. 试验中考虑了配筋率、加固量、剪跨比与混凝土强度等级4个参数. 试验结果表明, 经玻璃纤维布加固的钢筋混凝土梁抗弯承载力有显著提高; 混凝土强度、配筋率、加固量对极限荷载有显著影响; 剪跨比对加固梁的破坏形态有影响. 根据不同的破坏模式, 提出了抗弯承载力计算方法.
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| 关 键 词： | 玻璃纤维布 加固 钢筋混凝土梁 试验研究 抗弯承载力 |
Experimental study and calculation of flexural capacity of RC beams strengthened with GFRP sheets |
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| Wang Wenwei,Li Guo.Experimental study and calculation of flexural capacity of RC beams strengthened with GFRP sheets[J].Journal of Southeast University(English Edition),2004,20(2):229-234. |
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| Authors: | Wang Wenwei Li Guo |
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| Abstract: | Nine reinforced concrete (RC) beams strengthened with glass fiber reinforced polymer (GFRP) sheets and three control beams were tested. Four parameters considered in this experimental program included the concrete strength,the reinforcement ratio,the number of GFRP sheets,and the shear span ratio. It is shown that the application of GFRP sheets can increase the ultimate flexural capacity. The effect of the concrete strength,the reinforcement ratio and the number of GFRP sheets on load capacity is obvious. The shear span ratio can affect the failure mode of RC beams strengthened with GFRP sheets. A theoretical model for flexural behavior of the strengthened RC beam is also developed. |
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| Keywords: | glass fiber reinforced polymer (GFRP) sheets strengthen reinforced concrete (RC) beam experimental study flexural capacity |
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