| 预应力FRP加固RC梁的受力分析 |
| |
| 引用本文： | 郭馨艳,黄培彦,郑小红.预应力FRP加固RC梁的受力分析[J].华南理工大学学报(自然科学版),2005,33(7):6-10. |
| |
| 作者姓名： | 郭馨艳 黄培彦 郑小红 |
| |
| 作者单位： | 华南理工大学,交通学院,广东,广州,510640 |
| |
| 基金项目： | 国家自然科学基金资助项目(10272047)，广东省自然科学基金资助项目(020856) |
| |
| 摘 要： | 粘贴预应力纤维增强复合材料(FRP)片材对土木建筑结构进行加固和修复，可以提高工程效率。改善构件的受力状况．文中从理论分析着手，推导出了预应力FRP片材增强RC梁的有效预应力、预应力损失量和容许张拉预应力的计算公式，并以两组预应力FRP片材增强RC试验梁为研究对象，从理论上计算了这些试验梁的有效预应力、预应力损失量和容许张拉预应力．分析结果表明，有效预应力的理论计算值与实验值相吻合，但预应力损失量的实验值比理论计算值稍大．
|
| 关 键 词： | 纤维增强片材 有效预应力 预应力损失量 容许张拉预应力 |
| 文章编号： | 1000-565X(2005)07-0006-05 |
Mechanical Analysis of RC Beams Strengthened by Prestressed FRPs |
| |
| Guo Xin-yan,Huang Pei-yan,ZHENG Xiao-hong.Mechanical Analysis of RC Beams Strengthened by Prestressed FRPs[J].Journal of South China University of Technology(Natural Science Edition),2005,33(7):6-10. |
| |
| Authors: | Guo Xin-yan Huang Pei-yan ZHENG Xiao-hong |
| |
| Abstract: | Bonding prestressed FRPs (Fiber-Reinforced Plates) to strengthen and repair civil engineering structures improves the working efficiency and the force conditions of structures. In this paper, formulae of the virtual prestress, the prestress lose and the permissible prestress on the RC beam strengthened by prestressed FRPs are deduced based on theoretical analyses. Moreover, the virtual prestress, prestress lose and permissible prestress of two kinds of prestressed FRP-strengthened RC beams are calculated. The results show that the calculated values of virtual prestress are consistent with the experimental results, while the calculated values of prestress lose are slightly less than the experimental results. |
| |
| Keywords: | fiber-reinforced plate virtual prestress prestress lose permissible prestress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
