[1]李涛,肖彬,李勇,等.方钢管灌浆连接节点轴压性能试验研究[J].西安建筑科技大学学报(自然科学版),2023,55(05):643-651.[doi:10.15986/j.1006-7930.2023.05.002]
　LI Tao,XIAO Bin,LI Yong,et al.Experimental study on axial compression performance of square hollow section grouted joints[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(05):643-651.[doi:10.15986/j.1006-7930.2023.05.002]
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方钢管灌浆连接节点轴压性能试验研究()
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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:
55
期数:
2023年05期
页码:
643-651
栏目:
出版日期:
2023-10-28

文章信息/Info

Title:
Experimental study on axial compression performance of square hollow section grouted joints
文章编号:
1006-7930(2023)05-0643-09
作者:
李涛1; 2; 肖彬1; 李勇1; 李炀1; 王小平2; 1; 邵永波3
（1.武汉理工大学 土木工程与建筑学院，湖北 武汉 430000；2.武汉理工大学 海南研究院，海南 三亚 572000；3.西南石油大学 土木工程与测绘学院，四川 成都 610000）
Author(s):
LI Tao1; 2; XIAO Bin1; LI Yong1; LI Yang1; WANG Xiaoping2; 1; SHAO Yongbo3
（1.School of Civil Engineering and Architecture，Wuhan University of Technology，Wuhan 430000，China; 2.Hainan institute，Wuhan University of Technology，Sanya 572000，China; 3.School of Civil Engineering and Geomatics，SWPU，Southwest Petroleum University，Chengdu 610000，China）
关键词:
模块装配式; 灌浆连接; 方钢管; 抗剪键
Keywords:
modular construction;  grouted connection;  square hollow section;  shear key
分类号:
TU398.9
DOI:
10.15986/j.1006-7930.2023.05.002
文献标志码:
A
摘要:
模块装配式钢结构中不同模块间的连接方式对节点的承载能力和结构整体安全有着重要影响.借鉴海上风机桩基础连接对已有的钢模块间方钢管梁柱节点连接方式进行改进，提出一种带有抗剪键的灌浆连接方式.为了研究灌浆连接抗剪键设置准则，设计了7个方钢管灌浆连接试件并进行了轴压测试，研究了抗剪键的高度h和间距s对试件极限承载能力的影响，并调查了各试件的破坏模式.研究结果表明，外套筒钢材的强度需要和灌浆料强度进行适度的匹配.此外，增加抗剪键的数量可以显著提升试件的极限承载能力，但随着h/s变小，抗剪键提升承载能力的效率会降低.抗剪键数量一定的情况下，适当的增加抗剪键间距s能够略微提升试件的极限承载能力.
Abstract:
The connection mode between different modules in the modular assembled steel structure has an important influence on the bearing capacity of the joints and the overall safety of the structure. In this study, the existing connection method of square steel tube beamcolumn joints between steel modules is improved by referring to the pilefoundation connection of offshore wind turbines, and a grouting connection method with shear keys is proposed. In order to study the setting criteria of shear keys for grouted connections, seven square hollow section grouted connection specimens were designed and tested under axial compression. The effects of the height h and spacing s of shear keys on the ultimate bearing capacity of the specimens were studied, and the failure modes of each specimen were investigated. The results show that the strength of the outer sleeve steel needs to be appropriately matched with the strength of the grouting material. In addition, increasing the number of shear keys can significantly improve the ultimate bearing capacity of the specimen, but as h/s becomes smaller, the efficiency of the shear key to improve the bearing capacity will decrease. In the case of a certain number of shear keys, an appropriate increase in the shear key spacing s can slightly increase the ultimate bearing capacity of the specimen.

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备注/Memo

备注/Memo:
收稿日期:2022-07-10修回日期:2023-08-15
基金项目:国家自然科学基金资助项目（51908437）；2021年海南省重点研发计划基金资助项目（ZDYF2021GXJS211）；海南省科技专项基金资助项目（ZDKJ2021024）；中央高校基本科研业务费专项资金资助项目（项目批准号：2020IVB0090，2020IVB009）
第一作者:李涛(1984—)，男，博士，副教授，主要从事装配式钢-组合结构及钢结构的疲劳寿命预测方法与断裂性能评估研究.Email：scealitao@whut.edu.cn
更新日期/Last Update: 2023-11-02