FRP筋黏结性能影响因素灰色关联度分析
Grey Correlation Analysis on Effects Factors of Bonding Performance of FRP Rebars
关键词:
FRP筋;黏结性能;影响因素;灰色关联度
Key words:
FRP rebar;Bonding performance;Influence factor;Grey correlation analysis
刊期:
2019年第4期
DOI:
10.19761/j.1000-4637.2019.04.046.04
文章编号:
基金项目:
国家自然科学基金项目(51608303);广东省高等学校结构与风洞重点实验室开放基金项目(201702);三峡大学学位论文培优基金项目(2018SSPY035)
作者:
朱永帅1,吴小勇1,2
单位:
1.三峡大学土木与建筑学院,宜昌 443002;2.广东省高等学校结构与风洞重点实验室,汕头515063
摘要
摘 要:利用灰色关联度分析理论,对FRP筋黏结性能与混凝土强度、黏结长度和筋材直径三个因素的关联程度进行了分析。得出各因素对FRP筋黏结性能的影响与FRP筋种类有关,GFRP筋和BFRP筋黏结性能关联度依次为:黏结长度、筋材直径和混凝土强度,CFRP筋为筋材直径、黏结长度和混凝土强度。此外还发现,提高混凝土强度等级能有效提高普通钢筋黏结性能,但对BFRP筋、CFRP筋和GFRP筋并不适用。
Abstract: By summing up the existing research results on the bonding properties of FRP rebars and using the method of grey correlation analysis, the relationship between concrete strength, bonding length and bar diameter and the bonding properties of FRP rebars is analyzed. The show that, the influence of three factors on the bonding performance of FRP rebars is related to the types of FRP rebars. The correlation order of the factors of GFRP or BFRP rebars is the bond length, the rod diameter and the strength of concrete, while the order is the rod diameter, the bond length and the strength of concrete for CFRP rebars. The effective method to enhance the bonding performance of steel bars by increasing the strength of concrete, while is applicable to neither BFRP rebars, CFRP rebars nor GFRP rebars.
结论
参考文献
引用本文
朱永帅,吴小勇.FRP筋黏结性能影响因素灰色关联度分析[J].混凝土与水泥制品,2019(4):46-48+100.
ZHU Y S,WU X Y.Grey Correlation Analysis on Effects Factors of Bonding Performance of FRP Rebars[J].China Concrete and Cement Products,2019(4):46-48+100.
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