| 外包U形碳纤维布加固钢筋砼梁的受剪承载力的研究 |
| |
| 引用本文： | 周毅雷,陈忠范.外包U形碳纤维布加固钢筋砼梁的受剪承载力的研究[J].特种结构,2003,20(3):69-73,76. |
| |
| 作者姓名： | 周毅雷 陈忠范 |
| |
| 作者单位： | 1. 东南大学,建筑设计研究院,南京,210096
2. 东南大学,土木学院,南京,210096 |
| |
| 摘 要： | 本文在试验的基础上 ,总结了外包U形碳纤维布加固钢筋混凝土梁受剪破坏的特征 ,分析了碳纤维布对加固梁受剪承载力的作用 ,讨论了加固梁的破坏机理和受力模型 ,提出了在剪跨内碳纤维布有效应变沿梁纵向的分布规律。并以此为基础 ,给出了适合工程设计之用的外包U形碳纤维布加固梁受剪承载力计算公式。经过与试验数据对比 ,发现二者吻合较好
|
| 关 键 词： | 碳纤维布 抗剪加固 应变 设计公式 |
Analysis of Shearing Ability of RC Beams Strengthened by External CFRP U Jackets |
| |
| Zhou Yilei\ Chen Zhongfan.Analysis of Shearing Ability of RC Beams Strengthened by External CFRP U Jackets[J].Special Structures,2003,20(3):69-73,76. |
| |
| Authors: | Zhou Yilei\ Chen Zhongfan |
| |
| Affiliation: | Southeast University:1 Architectureal Design & Research Institute;2 College of Civil Engineering of Southeast University 210096 |
| |
| Abstract: | This paper,on the basis of experiments,concluded the characters of shearing failure of RC beams strengthened with external CFRP U jackets,analyzed the contribution of CFRP sheets to the shear capacity of strengthened beams,and discussed failure mechanism and working model of strengthened beams.On the basis of giving the regulation of the distribution of CFRP sheets effective strain in the direction of longitudinal axis of the beam in one shear span,the paper provided an evaluating equation,which can be applied to engineering design,of shear capacity of RC beams strengthened with external CFRP U jackets.Compared with the test results available,the proposed equations gave good agreement. |
| |
| Keywords: | CFRP sheet Shear strengthening Strain Design equation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
