| CFRP加固部分预应力梁的抗弯性能分析 |
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| 引用本文： | 童谷生,刘永胜,吴秋兰. CFRP加固部分预应力梁的抗弯性能分析[J]. 玻璃钢/复合材料, 2009, 0(1) |
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| 作者姓名： | 童谷生 刘永胜 吴秋兰 |
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| 作者单位： | 华东交通大学土木建筑学院,江西,南昌,330013 |
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| 摘 要： | 通过开展碳纤维布(CFRP)加固部分预应力粱的抗弯实验,系统研究了CFRP对部分预应力混凝土梁的加固效应.制作了7根CFRP加固部分预应力梁,其中一根为对比未加固梁,另外六根为CFRP加固梁.试验考虑了初始裂缝宽度和CFRP层数的影响,分析了CFRP对混凝土梁的极限承载力、挠度和破坏形态的影响,体现了CFRP的阻裂增强效应.试验结果表明,粘贴CFRP可有效减小同荷载下的挠度,抑制试件的裂缝发展,提高顸应力梁的抗弯承载力.
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| 关 键 词： | 部分预应力梁 初始损伤 弯曲性能 |
ANALYSIS ON THE FLEXURAL BEHAVIOR OF PARTIALLY-PRESTRESSED CONCRETE BEAMS REINFORCED WITH CFRP |
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| TONG Gu-sheng,LIU Yong-sheng,WU Qiu-lan. ANALYSIS ON THE FLEXURAL BEHAVIOR OF PARTIALLY-PRESTRESSED CONCRETE BEAMS REINFORCED WITH CFRP[J]. Fiber Reinforced Plastics/Composites, 2009, 0(1) |
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| Authors: | TONG Gu-sheng LIU Yong-sheng WU Qiu-lan |
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| Affiliation: | TONG Gu-sheng,LIU Yong-sheng,WU Qiu-lan(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | The flexural experiments of 7 partially-prestressed beams were conducted,and the ultimate bearing capacity,deflection and failure mode of the beams were analyzed.The beams include 1 non-reinforced contrasting sample and 6 reinforced with CFRP ones.The breadth of the initial damage and the number of layer of CFRP were considered.The experimental results showed that the ultimate bearing capacity of the beams with CFRP increased clearly and the crack expanded more slowly than the contrasting beam.This explaine... |
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| Keywords: | CFRP |
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