|
|||||
|
|
| 预应力CFRP布加固梁的疲劳试验研究 | |
| 引用本文： | 蒋定,杨威,安琳. 预应力CFRP布加固梁的疲劳试验研究[J]. 湖南科技大学学报(自然科学版), 2011, 26(2) |
| 作者姓名： | 蒋定 杨威 安琳 |
| 作者单位： | 1. 湖南省高速公路管理局醴茶高速公路建设开发有限公司,湖南株洲,412200 2. 河南省交通规划勘察设计院,河南郑州,450052 3. 东南大学桥梁与隧道工程系,江苏南京,210096 |
| 基金项目： | 国家自然科学基金预研基金，城乡建设部研究开发项目 |
| 摘 要： | 应用课题组研发的预应力CFRP布加固混凝土梁技术,对加固梁的疲劳性能进行了试验研究.试验结果表明,在疲劳荷载作用下,预应力CFRP布加固梁的钢筋应变值显著减少,同时预应力CFRP布加固更为有效的改善了混凝土梁的抗裂性能.相对于未加固梁,加固梁的疲劳寿命有显著的增加,表现出良好的抗疲劳性能. |
| 关 键 词： | CFRP布 预应力 加固 疲劳 钢筋混凝土 |
Experimental study on fatigue behavior of RC beams strengthened with prestressed CFRP sheets |
|
| JIANG Ding,YANG Wei,AN Lin. Experimental study on fatigue behavior of RC beams strengthened with prestressed CFRP sheets[J]. Journal of Hunan University of Science & Technology(Natural Science Editon), 2011, 26(2) | |
| Authors: | JIANG Ding YANG Wei AN Lin |
| Affiliation: | JIANG Ding1,YANG Wei2,AN Lin3(1.Hunan Expressway Authority,Licha Expressway Construction and Development Co.,Ltd.,Zhuzhou 412200,China,2.Henan Provincial Communications Planning Survey & Design Institute,Zhengzhou 450052,3.School of Transportation,Southeast University,Nanjing 210096,China) |
| Abstract: | The flexural fatigue behaviors of RC beams strengthened with prestressed CFRP sheets are investigated with 5 specimens,in which the influences of prestressed/non-prestressed,strengthening amount of prestressed CFRP sheets,and amplitude fatigue loading were taken into consideration.Experimental results show that the strain amplitude of the tensioned bar is decreased remarkably,and the fatigue life is obviously increased,as compared to normal strengthening method.In addition,RC beams strengthened with prestre... |
| Keywords: | CFRP sheets prestressed strengthening fatigue reinforced concrete |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |