[1]陈升平,李航宇,张建波,等. BFRP筋钢纤维部分增强混凝土梁延性性能研究[J].湖北工业大学学报,2023,(1):76-79+93.
　CHEN Shengping,LI Hangyu,ZHANG Jianbo,et al. Ductility Performance of Partial Steel Fiber Reinforced Concrete Beams with BFRP Bars[J].,2023,(1):76-79+93.
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 BFRP筋钢纤维部分增强混凝土梁延性性能研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2023年第1期
页码:
76-79+93
栏目:
湖北工业大学学报
出版日期:
2023-03-13

文章信息/Info

Title:
 Ductility Performance of Partial Steel Fiber Reinforced Concrete Beams with BFRP Bars
文章编号:
1003-4684(2023)01-0076-04
作者:
 陈升平;  李航宇;  张建波;  沈 伟;  董 辉
 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068
Author(s):
 CHEN Shengping;  LI Hangyu;  ZHANG Jianbo;  SHEN Wei;  DONG Hui
 School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China
关键词:
 ; FRP筋;  钢纤维;  受弯性能;  延性性能
Keywords:
 ; FRP bars; Steel fiber; Bending behavior; Ductility performance
分类号:
TU312
文献标志码:
A
摘要:
 以不同钢纤维体积率（0，0.5%，1%）和受压区的不同钢纤维混凝土层厚度（180，300）为试验变量，进行4根BFRP筋钢纤维混凝土梁和1根CFRP筋钢纤维混凝土梁的受弯性能试验。通过分析其破坏特征及破坏机理，研究了钢纤维体积率和受压区钢纤维混凝土层的厚度对其延性性能的提升效果。结果表明：添加钢纤维会显著提高梁的延性系数，较未掺加钢纤维的混凝土梁其延性系数的提高幅度约可达7%~42%；受压区钢纤维混凝土层的厚度对梁的延性系数也有一定的影响，随着混凝土层厚度的增加，其延性系数约可提高30%；CFRP筋对梁的增强增韧效果优于BFRP筋。
Abstract:
 The flexural behaviour of 4 BFRP reinforced steel fiber concrete beams and 1 CFRP reinforced steel fiber concrete beam with different steel fiber volume fraction(0, 0.5%, 1%) and different thickness of steel fiber concrete(180, 300) in the compression zone was tested in this paper. The effect of volume fraction of steel fiber and thickness of steel fiber concrete in compression zone on its ductility was evaluated by analyzing its failure characteristics and failure mechanisms. The results show that the ductility coefficient of the beams can be significantly improved by adding steel fiber, and the thickness of steel fiber in the compression zone will influence the ductility coefficient of the beams. Besides, the strengthening and toughening effect of CFRP bars is better than that of BFRP bars.

参考文献/References:

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备注/Memo

备注/Memo:
［收稿日期］ 2021-10-18
［第一作者］ 陈升平（1965-），男，湖南醴陵人，湖北工业大学教授，研究方向为高性能纤维增强混凝土
［通信作者］ 李航宇（1996-），男，广西梧州人，湖北工业大学硕士研究生，研究方向为纤维增强混凝土材料
更新日期/Last Update: 2023-03-14