[1]袁晓辉,卢哲安,任志刚,等.无机聚合物混凝土-钢筋拉拔有限元分析[J].西安建筑科技大学学报:自然科学版,2013,45(02):209-215.[doi:10.15986/j.1006-7930.2013.02.009]
　YUAN Xiao-hui,LU Zhe-an,REN Zhi-gang,et al.Finite element analysis of pullout tests on inorganic polymer concrete-steel bar[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(02):209-215.[doi:10.15986/j.1006-7930.2013.02.009]
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无机聚合物混凝土-钢筋拉拔有限元分析()
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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:
45
期数:
2013年02期
页码:
209-215
栏目:
出版日期:
2013-04-30

文章信息/Info

Title:
Finite element analysis of pullout tests on inorganic polymer concrete-steel bar
文章编号:
1006-7930(2013)02-0209-07
作者:
袁晓辉1; 卢哲安1; 任志刚2; 张传银1
(1:武汉理工大学道路桥梁与结构工程湖北省重点试验室,湖北 武汉 430070; 2:武汉理工大学土木工程与建筑学院,湖北 武汉 430070)
Author(s):
YUAN Xiao-hui1; LU Zhe-an1; REN Zhi-gang2; ZHANG Chuan-yin1
(1:Wuhan University of Technology; Key Laboratoryof Roadway Bridge and Structural Engineering; Wuhan 430070, China; 2:Wuhan University of Technology; School of Civil Engineering and Architecture; Wuhan 430070, China)
关键词:
无机聚合物混凝土; 拔出试验; 弹簧单元; 粘结滑移
Keywords:
inorganic polymer concrete;  pullout;  spring unit;  bond slip
分类号:
TU5
DOI:
10.15986/j.1006-7930.2013.02.009
文献标志码:
A
摘要:
通过制作强度等级为IPC40的3个无机聚合物混凝土(IPC)-钢筋拉拔试件,钢筋类型为光圆钢,锚固深度分别为100mm、120mm和150mm,对其进行拔出试验,获得拉拔荷载位移曲线,并通过试验获得IPC的弹性模量及应力-应变关系曲线,在此基础上利用弹簧单元模拟粘结滑移关系建立钢筋与混凝土分离模型,对整个拉拔过程进行模拟.分析结果:荷载位移曲线试验数据和模型数据上升段吻合良好,下降段存在一定差距,但总体变化趋势一致;模型分析最大极限拉拔荷载值与试验值误差为1.2%,极限位移误差为0.8%;有限元计算钢筋应力与实测值吻合良好.结果表明:采用弹簧单元能够真实有效的模拟无极聚合物混凝土与钢筋之间的粘结滑移关系
Abstract:
A pullout load displacement curve is obtained through inorganic polymer light-type concrete-steel bar pullout test pieces with the concrete strength IPC40 and the anchorages depth respectively of 100mm,120mm,and 150mm.Fromthe experiment IPS elastic modulus as well as the stress strain are derived. On the basis of this, spring element is also used to stimulate the bond slip relationship in establing the steel and concrete separation model, and to stimulate the whole pullout process. The rising segment of the load displacement curve of experimental data is in good agreement with the model data. The descending segment has a certain gap, while the overall trend remains the same. The error between the maximum limit pullout load and the experimental value remains at 12%,the limit displacement error at 0.8%,andthe steel stress value of finite element calculation is good agreement with that of the data measured. The results show that the spring unit can be real and effective in stimulating the bond slip relationship between inorganic polymer concrete and reinforcing bar.

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备注/Memo

备注/Memo:
收稿日期:2012-10-16 修改稿日期:2013-03-02
基金项目:国家自然科学基金资助项目(51078298)
作者简介:袁晓辉(1986-),男,河南灵宝人,博士研究生,主要从事桥梁与隧道工程及混凝土材料研究.
更新日期/Last Update: 2015-10-05