【作者】 王占桥； 高丹盈； 张启明； 赵军；

【Author】 Wang Zhanqiao,Gao Danying,Zhang Qiming,Zhao Jun (Research Center of New Style Building Material & Structure,Zhengzhou University,Zhengzhou,450002)

【机构】 郑州大学新型建材与结构研究中心；

【摘要】 本文通过粘贴玻璃纤维增强片材(glass fiber reinforced polymer,GFRP)加固切口混凝土梁三点弯曲试验,研究GFRP片材粘结厚度对GFRP与混凝土粘结性能的影响。结果表明:随着GFRP粘结厚度的增加,GFRP与混凝土的极限粘结力表现了良好的增加趋势;GFRP最大应力与GFRP粘结厚度关系不显著。最后基于对试验结果的分析,提出了GFRP片材与混凝土之间极限粘结力计算公式。更多还原

【Abstract】 Through three points bending test on notched concrete beam rehabilitated by externally bonded glass fiber reinforced polymer(GFRP),the influence of GFRP laminate thickness on the bond performance between GFRP and concrete are studied.The results show that:the bond strength between GFRP and concrete increase with the increase of GFRP laminate thickness,but the ultimate stress value of GFRP does not.Based on the experimental data,formulas for calculating the ultimate bond strength between GFRP and concrete are proposed and the calculated result is agreement well with the result measured.更多还原