[1]牛建刚,郝 吉,孙立斌,等.塑钢纤维增强轻骨料混凝土与钢筋粘结性能试验研究 [J].西安建筑科技大学学报(自然科学版),2016,48(06):805-802.[doi:10.15986/j.1006-7930.2016.06.006]
　NIU Jiangang,HAO Ji,SUN Libin,et al.Research on bond performance between bars and HPP fiber reinforced lightweight aggregate concrete[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(06):805-802.[doi:10.15986/j.1006-7930.2016.06.006]
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塑钢纤维增强轻骨料混凝土与钢筋粘结性能试验研究 ()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年06期
页码:
805-802
栏目:
出版日期:
2016-12-31

文章信息/Info

Title:
Research on bond performance between bars and HPP fiber reinforced lightweight aggregate concrete
文章编号:
1006-7930(2016)06-805-08
作者:
牛建刚1; 郝 吉1; 孙立斌2; 陈 旭1
1. 内蒙古科技大学土木工程学院，内蒙古 包头 014010；2. 青岛冠中生态股份有限公司，山东 青岛 266100
Author(s):
NIU Jiangang 1;  HAO Ji1;  SUN Libin2;  CHEN Xu1
1. School of Civil Eng, Inner Mongolia Univ. of Sci & Tech., Baotou 014010, China; 2. Guanzhong Ecological Co., LTD., Qingdao 266100, China
关键词:
 ; 塑钢纤维; 轻骨料混凝土; 粘结性能; 正交试验
Keywords:
HPP fiber;  Lightweight aggregate concrete;  Bond properties;  Orthogonal experiments
分类号:
TU528.2
DOI:
10.15986/j.1006-7930.2016.06.006
文献标志码:
A
摘要:
摘要：通过对内贴应变片钢筋的直接拔出试验，分析塑钢纤维掺量、基体强度以及轻骨料筒压强度等单一及多重因素对纤维增强轻骨料混凝土与钢筋间粘结强度和粘结应力分布的影响，得出三种影响因素对试件粘结性能的影响规律，并通过正交试验分析三种因素对试件粘结性能的影响程度．试验结果表明：塑钢纤维掺量对不同水灰比试件表现出不同的增强规律，对于水灰比大的试件，其极限粘结强度随纤维掺量增加而增大；对于水灰比小的试件，纤维增强作用随纤维掺量增大而减小；混凝土基体强度等级越高，试件极限粘结强度、自由端初始滑移对应粘结强度越高，峰值滑移减小；轻骨料筒压强度降低，纤维增强轻骨料混凝土的抗压强度、劈拉强度及基体与钢筋的极限粘结强度均会降低；通过正交试验得出轻骨料筒压强度对试件极限粘结强度影响程度最大．
Abstract:
Through pull-out test to steel bars attached strain gages inside, the single and multiple factors effect of HPP fiber dosage, concrete matrix strength and lightweight aggregate cylinder pressure strength to the bond performance between steel bar and HPP fiber reinforced lightweight aggregate concrete was analyzed. The results of pull-out test with different influences show that: reinforced function of HPP fiber for different water cement ratio specimens show different strengthening rules, for high w/c specimens, the ultimate bond strength increases with increasing of fiber content; for low w/c specimens, fiber reinforced function decreases with increasing fiber content; increase the concrete strength grade, the ultimate bond strength, and bond strength corresponding to the initial slip of free end increase, the ultimate bond strength corresponding to the free end displacement decreases; reduce lightweight aggregate strength, the HPP fiber reinforced lightweight aggregate concrete compressive strength, splitting tensile strength and ultimate bond strength decreases; lightweight aggregate cylinder pressure strength affected the ultimate bond strength most through orthogonal experiments.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2016-04-23 修改稿日期：2016-11-13

基金项目：国家自然科学基金资助项目(51368042)

作者简介：牛建刚(1976－)，男，博士，教授，主要从事混凝土结构耐久性方面的研究．Email: niujiangang@imust.edu.cn

更新日期/Last Update: 2017-01-26