| 碳纤维布加固损伤混凝土梁的疲劳性能试验 |
| |
| 引用本文： | 刘沐宇,李开兵,张学明,经柏林.碳纤维布加固损伤混凝土梁的疲劳性能试验[J].武汉理工大学学报,2004,26(4):52-55. |
| |
| 作者姓名： | 刘沐宇 李开兵 张学明 经柏林 |
| |
| 作者单位： | 1. 武汉理工大学土木工程与建筑学院,武汉,430070
2. 湖北省公路局科研所,武汉,430030 |
| |
| 基金项目： | 湖北省科技攻关项目 (2 0 0 2 AA10 1C14 )，湖北省交通厅科技攻关项目 (2 0 0 2)_ |
| |
| 摘 要： | 完成了粘贴碳纤维布加固在役损伤混凝土梁的疲劳试验。试验结果表明：损伤混凝土梁粘贴碳纤维布加固后的疲劳寿命可提高45％～60％，疲劳变形减少了25％～35％，梁的疲劳抗裂性能得到较大提高。因此，粘贴碳纤维布可以较大提高损伤混凝土梁的疲劳性能，延长损伤混凝土结构的使用寿命，为碳纤维布加固混凝土结构的长期疲劳性能研究提供了试验依据。
|
| 关 键 词： | 碳纤维布 加固 损伤 混凝土梁 疲劳性能试验 |
| 文章编号： | 1671-4431(2004)04-0052-04 |
| 修稿时间： | 2003年11月14 |
Fatigue Performance of Damage Beams Strengthened by CFRP-sheet |
| |
| LIU Mu-yu ,LI Kai-bing ,ZHANG Xue-ming ,JING Bai-lin.Fatigue Performance of Damage Beams Strengthened by CFRP-sheet[J].Journal of Wuhan University of Technology,2004,26(4):52-55. |
| |
| Authors: | LIU Mu-yu LI Kai-bing ZHANG Xue-ming JING Bai-lin |
| |
| Affiliation: | LIU Mu-yu 1,LI Kai-bing 1,ZHANG Xue-ming 2,JING Bai-lin 2 |
| |
| Abstract: | The paper gives the fatigue performance of RC damage beams strengthened with CFRP-sheet by making the fatigue test of three damage beams. It is found that the fatigue life of damage beams strengthened with CFRP-sheet is improved greatly, and the fatigue deformation is decreased by twenty-five and thirty-five percent, and the performance of anti-crack is improved greatly, which has a great meaning for the structure in the corrosion environment. The test shows that the CFRP-sheet is great use for the improvement of fatigue performance of damage beams and sets up the test-base for the study of long-term performance of RC beam reinforced with CFRP-sheet. |
| |
| Keywords: | CFRP reinforcement fatigue test reinforced concrete beam damage |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
