利用拉拔试验对玻璃纤维增强复合材料(GFRP)带肋筋与混凝土的粘结性能进行试验研究,并对筋的肋参数进行优化.自行设计了30种不同肋参数的GFRP带肋筋,试验变量包括筋直径、肋高度和肋间距.在此基础上,制作了90个标准拉拔试件,分别测试了GFRP带肋筋的粘结强度和加载端滑移,得到了相应的粘结-滑移曲线;根据肋参数的优化准则对各种GFRP带肋筋的粘结-滑移曲线进行分析,确定GFRP带肋筋的最佳肋参数.试验结果表明:肋参数对GFRP带肋筋与混凝土的粘结性能影响显著;GFRP带肋筋的最佳肋间距为筋直径的1倍,最佳肋高度为筋直径的6%,即最佳肋高度与最佳肋间距的比值为0.06.
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