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| 碳纤维布补强加固钢筋混凝土梁的刚度计算方法 | |
| 引用本文： | 田水,谷倩,张海涛. 碳纤维布补强加固钢筋混凝土梁的刚度计算方法[J]. 武汉理工大学学报, 2004, 26(12): 49-51,58 |
| 作者姓名： | 田水 谷倩 张海涛 |
| 作者单位： | 1. 武汉理工大学土木工程与建筑学院,武汉,430070;武汉大学土木建筑工程学院,武汉,430072 2. 武汉理工大学土木工程与建筑学院,武汉,430070 3. 武汉大学水电学院,武汉,430072 |
| 基金项目： | 武汉市青年科技晨光计划 (2 0 0 35 0 0 2 0 16 - 30 )，校科研基金 (2 0 0 3XJJ171 |
| 摘 要： | 将碳纤维布加固梁的弯矩-曲率关系曲线理想化为三线型，提出了CFRP加固梁的刚度计算方法。通过建立力的平衡方程、材料的本构方程及几何方程，分别计算三折线的交点处及破坏时加固梁的刚度，根据线性关系进一步计算出加固粱在任意荷载下的刚度，进而得出碳纤维布加固梁在不同荷载水平下的挠度值。 |
| 关 键 词： | 碳纤维布 钢筋混凝土梁 加固 刚度 计算方法 |
| 文章编号： | 1671-4431(2004)12-0049-03 |
Calculating Method for the Stiffness of RC Beam Strengthened with CFRP |
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| TIAN Shui ,,GU Qian,ZHANG Hai-tao. Calculating Method for the Stiffness of RC Beam Strengthened with CFRP[J]. Journal of Wuhan University of Technology, 2004, 26(12): 49-51,58 | |
| Authors: | TIAN Shui GU Qian ZHANG Hai-tao |
| Affiliation: | TIAN Shui 1,2,GU Qian1,ZHANG Hai-tao3 |
| Abstract: | The moment-curvature curve of the RC beam strengthened with CFRP was presumed the idealized three-segment line, under which the calculation method of stiffness of the strengthened beam was promoted here. Based on the foundation of the equation of force, the equation of stress-strain and the geometric equation of material, the stiffness of the strengthened beam at each joint and the ultimate failure point on the three-segment line can be calculated, then the stiffness of beam at any point can be evaluated respectively through the linear rule of each segment, by which the load-deflection curve of the strengthened beam can be obtained. |
| Keywords: | carbon fiber reinforced polymer (CFRP) reinforced concrete (RC) beam strengthening stiffness calculation method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |