[1]谢 群,赵永强,唐仕霖.无机胶植筋构件粘结滑移性能研究[J].西安建筑科技大学学报：自然版,2015,47(06):838-842.[doi:10.15986/j.1006-7930.2015.06.014]
　XIE Qun,ZHAO Yongqiang,TANG Shilin.Bond-slip behavior of post-installed reinforcement in concrete with inorganic adhesive[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2015,47(06):838-842.[doi:10.15986/j.1006-7930.2015.06.014]
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无机胶植筋构件粘结滑移性能研究()
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西安建筑科技大学学报：自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年06期
页码:
838-842
栏目:
出版日期:
2016-01-15

文章信息/Info

Title:
Bond-slip behavior of post-installed reinforcement in concrete with inorganic adhesive
文章编号:
1006-7930(2015)06-0838-05
作者:
谢 群; 赵永强; 唐仕霖
(济南大学土木建筑学院,山东 济南 250022 )
Author(s):
XIE Qun;  ZHAO Yongqiang;  TANG Shilin
(School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China)
关键词:
无机胶; 粘结滑移; 埋深; 数值分析
Keywords:
inorganic adhesive;  bond-slip;  embedment depth;  numerical analysis
分类号:
TU582
DOI:
10.15986/j.1006-7930.2015.06.014
文献标志码:
A
摘要:
无机胶以其耐高温、粘结性能好在植筋领域得到广泛应用，为深入了解该类植筋构件的粘结滑移受力性能，采用试验方法对其粘结应力进行了研究，考察了不同埋深情况下的粘结性能，埋深为10d和15d 情况下植入钢筋均先达到屈服，而后发生拉断破坏．粘结应力沿埋深分布是不均匀的，最大粘结应力出现在距离加载端0.25~0.3l(l 为植筋埋深)位置处．根据试验研究结果建立了基于位置函数的无机胶粘结滑移本构模型，并将该模型用于有限元分析，采用非线性弹簧单元模拟无机胶的粘结作用，通过与试验结果比较可知，该模型可以较好地反映无机胶植筋构件的受力性能，可用于今后的分析设计．
Abstract:
Inorganic adhesive is a kind of adhesion material widely used in bonded-in reinforcement projects with the advantage of good heat resistance and bond behavior. To better understand the bond performance for post-installed reinforcement with inorganic adhesive, a series of static loading tests have been carried out with two kinds of embedment depth, 10 d and 15 d. The experimental results show that the bonded-in rebar could reach the yield strength under monotonic tension loading for both situations after which a fracture failure will appear. The distribution of bond stress length is not uniform along the anchorage and the peak value occurs at the position with the distance 0.25l~0.3l(l as embedment depth) away from loaded end. A bond-slip model with consideration of position function has been provided based on the experiment results. An FE model has been employed with the model mentioned above and nonlinear springe element has been adopted in the FE model for bond simulation. Numerical analysis shows satisfactory agreement compared with the test data which approves that the bond-slip model is suitable for structural design and engineering application

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2015-07-13修改稿日期：2015-12-10
基金项目：山东省高等学校科技计划项目(J13LG06)；山东省自然科学基金项目(ZR2014EL037)
作者简介：谢群（1979-），男，博士，副教授，主要研究方向为结构加固改造．E-mail：xq307@163.com
更新日期/Last Update: 2016-01-29