| CFRP布加固钢筋混凝土梁抗弯承载力设计计算方法 |
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| 引用本文： | 周爱军,黄承逵.CFRP布加固钢筋混凝土梁抗弯承载力设计计算方法[J].公路交通科技,2007,24(8):78-82. |
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| 作者姓名： | 周爱军 黄承逵 |
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| 作者单位： | 1. 鲁东大学,土木工程学院,山东,烟台,264025
2. 大连理工大学,辽宁,大连,116024 |
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| 基金项目： | 刘宝琛院士基金资助项目 |
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| 摘 要： | 为完善公路钢筋混凝土桥梁抗弯加固设计理论,针对CFRP布加固钢筋混凝土梁的受力机理和破坏特点,结合我国现行《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG D62-2004)的设计理论,基于国内文献有关CFRP布加固梁的抗弯试验研究成果,建立了CFRP布加固桥梁的抗弯承载力计算公式,并提出了加固后梁承载力的提高程度、碳纤维布最大用量和最小用量的限制要求。公式计算值与试验值的对比结果表明,所建议公式具有较好的实用性和安全性,可用于公路钢筋混凝土桥梁的抗弯加固设计计算。
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| 关 键 词： | 桥梁工程 抗弯承载力 试验结果分析 碳纤维增强复合材料(CFRP) 加固 设计方法 |
| 文章编号： | 1002-0268（2007）08-0078-05 |
| 修稿时间： | 2006-03-27 |
Calculation Method of Flexural Capacity of Reinforced Concrete Beams with Externally Bonded CFRP Sheets |
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| ZHOU Ai-jun,HUANG Cheng-kui.Calculation Method of Flexural Capacity of Reinforced Concrete Beams with Externally Bonded CFRP Sheets[J].Journal of Highway and Transportation Research and Development,2007,24(8):78-82. |
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| Authors: | ZHOU Ai-jun HUANG Cheng-kui |
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| Institution: | 1 .School of Civil Engineering, Ludong University, Shandong Yantai 264025, China; 2. Dalian University of Technology, Liaoning Dalian 116024, China |
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| Abstract: | In order to improve and validate a new design approach for flexure strengthened bridges,according to the flexural behaviour and failure modes of RC beams strengthened with externally bonded CFRP sheets ard combining with the code for design of highway reinforced and prestressed concrete bridges and culverts(JTG D62-2004),the flexural capacity formulas of strength calculation are established based on the flexural experimental results about CFRP reinforcement.The limit of carrying capacity improvement,maximum and minimum areas of CFRP is also suggested.The effectiveness of the design approach is then validated by comparing the experimental results with the calculated flexural capacity,and the proposed design approach is highly practical and reliable for strengthened bridge calculation. |
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| Keywords: | bridge engineering flexural capacity test result analysis carbon fiber reinforced polymer(CFRP) strengthening design approach |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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