|Table of Contents|

[1] Wang Yongquan, Chen Tianjiao, Jing Jian,. Mechanical performance of the mixed post-installed connectionin low-strength concrete [J]. Journal of Southeast University (English Edition), 2017, 33 (2): 203-208. [doi:10.3969/j.issn.1003-7985.2017.02.013]

Mechanical performance of the mixed post-installed connectionin low-strength concrete()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2017 2
Research Field:
Other Disciplines
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Mechanical performance of the mixed post-installed connectionin low-strength concrete
Wang Yongquan1 Chen Tianjiao1 Jing Jian2
1College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
2College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
low-strength concrete post-installed connection chemically-planted steel bars bearing capacity failure pattern
Due to inadequate bearing capacity of the chemically-planted steel bar in low-strength concrete, a new mixed post-installed connection is proposed using small diameter anchoring steel bars and grouting materials together to anchor the main steel bar. To investigate the feasibility of the proposed post-installed connections, a series of pull-out tests with different anchors were conducted for comparison, including fully adhesive anchors, partially adhesive anchors, grouting material anchoring connection and the new mixed post-installed connection. The experimental results of the single steel bar pull-out test show that the mixed post-installed connection can effectively enhance the bearing capacity of post-installed steel bars in low-strength concrete. The bearing capacity is increased by nearly two times with no cone-type concrete failure compared with the fully adhesive anchor. The results show that adopting the new mixed post-installed connection can ensure that joint performance meets the requirements if the space dimension is available.


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Biography: Wang Yongquan(1981—), male, doctor, associate professor, wyq_hhu@hhu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51409084), the Natural Science Foundation of Jiangsu Province(No.BK20130836).
Citation: Wang Yongquan, Chen Tianjiao, Jing Jian. Mechanical performance of the mixed post-installed connection in low-strength concrete[J].Journal of Southeast University(English Edition), 2017, 33(2):203-208.DOI:10.3969/j.issn.1003-7985.2017.02.013.
Last Update: 2017-06-20