| CFRP布加固混凝土梁的裂缝分析与计算 |
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| 引用本文： | 庄江波,叶列平,鲍轶洲,伍杨波.CFRP布加固混凝土梁的裂缝分析与计算[J].东南大学学报(自然科学版),2006,36(1):86-91. |
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| 作者姓名： | 庄江波 叶列平 鲍轶洲 伍杨波 |
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| 作者单位： | 1. 清华大学土木工程系,北京,100084
2. 广州市中心区交通项目领导小组办公室,广州,510030 |
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| 基金项目： | 广东省广州市中心区交通项目 |
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| 摘 要： | 根据传统的钢筋混凝土裂缝宽度计算理论,对CFRP布加固混凝土梁的裂缝宽度计算方法进行了分析研究.提出了考虑CFRP布加固影响的正常使用阶段裂缝间距、钢筋应力和钢筋应力不均匀系数的计算公式,在此基础上按混凝土梁的裂缝宽度计算方法,给出了CFRP加固混凝土梁的裂缝宽度计算公式.计算与试验结果吻合较好,且与传统的钢筋混凝土梁的裂缝宽度计算公式统一,可作为实际工程应用参考.
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| 关 键 词： | CFRP布 加固 混凝土梁 裂缝宽度 |
| 文章编号： | 1001-0505（2006）01-0086-06 |
| 收稿时间： | 08 10 2005 12:00AM |
| 修稿时间： | 2005-08-10 |
Crack width of reinforced concrete beams strengthened with CFRP sheets |
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| Zhuang Jiangbo,Ye Lieping,Bao Yizhou,Wu Yangbo.Crack width of reinforced concrete beams strengthened with CFRP sheets[J].Journal of Southeast University(Natural Science Edition),2006,36(1):86-91. |
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| Authors: | Zhuang Jiangbo Ye Lieping Bao Yizhou Wu Yangbo |
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| Institution: | 1. Department of Civil Engineering, Tsinghua University. Beijing 100084, China; 2.Guangzhou Centro Transportation Project Office, Guangzhou 510030, China |
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| Abstract: | Based on the traditional crack theory of reinforced concrete(RC) beams,the crack width prediction for RC beams strengthened with carbon fiber reinforced polymer(CFRP) sheets is studied.The influence of CFRP sheets on distance of cracks,tensile stress steel reinforcement at the cracked section and its non-uniform distribution factor are analyzed.The suggested crack width prediction formulae are also consistent with that of the RC beams.And the predicted crack width are shown to be in reasonable agreement with the test ones. |
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| Keywords: | carbon fiber reinforced polymer sheets reinforced concrete beam crack width |
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