东南大学学报（英文版）2017，Vol.33Issue(2)：203-208,6.DOI:10.3969/j.issn.1003-7985.2017.02.013
低强度混凝土基材上新型后锚固连接构造的受力性能
Mechanical performance of the mixed post-installed connection in low-strength concrete
摘要
Abstract
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.关键词
低强度混凝土/新型连接构造/化学植筋/承载力/破坏形态Key words
low-strength concrete/post-installed connection/chemically-planted steel bars/bearing capacity/failure pattern分类
建筑与水利引用本文复制引用
王永泉,陈天骄,景剑..低强度混凝土基材上新型后锚固连接构造的受力性能[J].东南大学学报（英文版）,2017,33(2):203-208,6.基金项目
The National Natural Science Foundation of China(No.51409084),the Natural Science Foundation of Jiangsu Province(No.BK20130836). （No.51409084）
