EXPERIMENTAL RESEARCH ON BOND PERFORMANCES BETWEEN CORRODED INNER WALLS OF GROUTING SLEEVES AND GROUTING MATERIALS

DU Yongfeng; ZHANG Tianyun; LI Hu

doi:10.13204/j.gyjzG21010413

Volume 51 Issue 11

Mar. 2022

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(11): 75-80

DU Yongfeng, ZHANG Tianyun, LI Hu. EXPERIMENTAL RESEARCH ON BOND PERFORMANCES BETWEEN CORRODED INNER WALLS OF GROUTING SLEEVES AND GROUTING MATERIALS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(11): 75-80. doi: 10.13204/j.gyjzG21010413

Citation:

DU Yongfeng, ZHANG Tianyun, LI Hu. EXPERIMENTAL RESEARCH ON BOND PERFORMANCES BETWEEN CORRODED INNER WALLS OF GROUTING SLEEVES AND GROUTING MATERIALS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(11): 75-80. doi: 10.13204/j.gyjzG21010413

Citation:

PDF( 4082 KB)

EXPERIMENTAL RESEARCH ON BOND PERFORMANCES BETWEEN CORRODED INNER WALLS OF GROUTING SLEEVES AND GROUTING MATERIALS

doi: 10.13204/j.gyjzG21010413

DU Yongfeng^1,2,
ZHANG Tianyun^{1
,
,},
LI Hu¹

1. Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou 730050, China;
2. International Research Base on Seismic Mitigation and Isolation of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China

Received Date: 2021-01-04
Available Online: 2022-03-29

Abstract

Abstract

In order to study the corrosion effect on the inner walls of the grouting sleeves on the mechanical properties of prefabricated concrete structures after long-term service, 10 specimens connected with grouting sleeves were fabricated. The electrochemical method was used to accelerate corrosion on the inner walls of sleeves, and pull-out tests were conducted on specimens. The test results showed that when the corrosion rate was 0% and 3%, the failure modes of the specimens connected with the grouting sleeve were all shown as steel fracture failure. When the corrosion rate reached 6% and above, the failure mode of specimens in connection with grouting sleeves was the pull-out of grouting material, and the ultimate pull-out force and ultimate slip amount decreased with the increase of corrosion rate. Compared with the non-corroded sleeve, when the measured corrosion rate reached 12.74%, the loss of the ultimate pull-out resistance for grouting sleeves connected specimen by rust was by nearly 50%. Aiming at the case that the grouting material was pulled out after the sleeve was corroded, a fracture bond-slip model for the corrosion on the inner wall of the grout sleeve was proposed. It provided theoretical reference to the numerically refined modeling of grouting sleeves connected specimens with corroded inner walls.
- grouting sleeve,
- grouting material,
- corrosion,
- bond-slip,
- constitutive relation

FullText(HTML)

References(15)

References

[1]	钟小平,戴仁礼,袁承斌,等.氯盐环境锈蚀钢筋混凝土应力-应变本构模型[J/OL].建筑材料学报,2021,24(4):788-793.
[2]	白维刚,王军文,马玉龙,等.锈蚀钢筋混凝土桥墩抗震能力评估[J].湖南科技大学学报(自然科学版),2019,34(4):58-66.
[3]	郑山锁,周炎,李强强,等.氯离子侵蚀下低矮RC剪力墙抗震性能试验研究[J].工程力学,2019,36(12):69-78.
[4]	刘小娟,蒋欢军,郭子雄.锈蚀钢筋混凝土框架地震损伤性能研究[J].中南大学学报(自然科学版),2019,50(6):1437-1446.
[5]	吴小宝,林峰,王涛.龄期和钢筋种类对钢筋套筒灌浆连接受力性能影响的试验研究[J].建筑结构,2013,43(14):77-82.
[6]	HUANG Y,ZHU Z G,CLAY J,et al.Tensile Behavior of Half Grouted Sleeve Connections:Experimental Study and Analytical Modeling[J].Construction and Building Materials,2017,152:96-104.
[7]	蒋友宝,袁汉卿,周浩,等.套筒灌浆缺陷下装配式混凝土柱及框架的抗震性能[J].中南大学学报(自然科学版),2020,51(5):1361-1370.
[8]	曾严红,顾祥林,张伟平.混凝土中钢筋加速锈蚀方法探讨[J].结构工程师,2009,25(1):101-105.
[9]	郑山锁,裴培,张艺欣,等.钢筋混凝土黏结滑移研究综述[J].材料导报,2018,32(23):4182-4191.
[10]	林红威,赵羽习,郭彩霞,等.锈胀开裂钢筋混凝土黏结疲劳性能试验研究[J].工程力学,2020,37(1):98-107.
[11]	赵羽习,金伟良.锈蚀钢筋与混凝土黏结性能的试验研究[J].浙江大学学报(工学版),2002,36(4):352-356.
[12]	王小惠,刘西拉.锈蚀钢筋混凝土梁的斜截面抗剪承载能力[J].上海交通大学学报,2007(6):944-949.
[13]	LUNDGREN K.Modelling the Effect of Corrosion on Bond in Reinforced Concrete[J].Magazine of Concrete Research,2002,54(3):165-173.
[14]	杨海峰,邓志恒,覃英宏.钢筋锈蚀后与再生混凝土间黏结-滑移本构关系研究[J].工程力学,2015,32(10):114-122.
[15]	吴庆.基于钢筋锈蚀的混凝土构件性能退化预计模型[M].北京:中国矿业大学出版社,2009:132-135.