| 预应力CFRP布加固钢筋混凝土梁疲劳性能试验研究 |
| |
| 引用本文： | 何初生,王文炜,杨威,叶见曙.预应力CFRP布加固钢筋混凝土梁疲劳性能试验研究[J].东南大学学报(自然科学版),2011,41(4):841-847. |
| |
| 作者姓名： | 何初生 王文炜 杨威 叶见曙 |
| |
| 作者单位： | 1. 东南大学交通学院,南京,210096
2. 河南省交通规划勘察设计院有限责任公司,郑州,450052 |
| |
| 基金项目： | 国家自然科学基金资助项目(51078079) |
| |
| 摘 要： | 为了研究预应力CFRP布加固钢筋混凝土梁的疲劳性能,进行了4根CFRP布加固的钢筋混凝土和1根对比梁的试验研究.试验中考虑的变量为碳纤维应力强度比、疲劳荷载幅和CFRP布粘贴层数.试验梁采用双点对称等幅、等频率加载.试验结果表明:未加固的对比梁受疲劳荷载作用时,裂缝少而宽；非预应力CFRP布加固梁,裂缝多而密,裂缝高度...
|
| 关 键 词： | 预应力碳纤维布 加固 钢筋混凝土梁 疲劳 试验 |
Experimental study on fatigue behavior of reinforced concrete beams strengthened by prestressed CFRP sheets |
| |
| He Chusheng,Wang Wenwei,Yang Wei,Ye Jianshu.Experimental study on fatigue behavior of reinforced concrete beams strengthened by prestressed CFRP sheets[J].Journal of Southeast University(Natural Science Edition),2011,41(4):841-847. |
| |
| Authors: | He Chusheng Wang Wenwei Yang Wei Ye Jianshu |
| |
| Institution: | He Chusheng1 Wang Wenwei1 Yang Wei2 Ye Jianshu1(1School of Transportation,Southeast University,Nanjing 210096,China)(2Henan Provincial Communications Planning Survey and Design Institute Co.,Ltd.,Zhengzhou 450052,China) |
| |
| Abstract: | Four RC(reinforced concrete) beams strengthened with non-prestressed/prestressed CFRP(carbon fiber reinforced polymer) sheets and one contrast beam were tested to investigate the fatigue behavior.The prestressing levels of CFRP sheet,the amount of prestressed CFRP sheets,and the amplitude of fatigue loads were taken into consideration.The symmetrical two-point loads with constant amplitude and frequency were applied on all test beams.The test results show that the cracks of contrast beam are fewer and wider... |
| |
| Keywords: | prestressed CFRP(carbon fiber reinforced polymer) sheets strengthening reinforced concrete beams fatigue experiment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
