(1 湖南大学土木工程学院, 长沙 410082; 2 湖南城市学院土木工程学院, 益阳 413099)

摘要: 为研究一种新型法兰栓焊连接柱节点在多高层钢结构中的工程应用,对 3 个法兰连接足尺模型试件进行了静力加载试验,并建立 ABAQUS 有限元模型对其进行对比论证以及理论分析. 分析结果表明:新型法兰栓焊连接节点受力性能良好,对比传统法兰连接节点其刚度和承载力均有所提升;新型法兰栓焊连接节点的破坏模式有所改善. 得出了不同焊缝尺寸下新型法兰栓焊连接节点的螺栓与焊缝承受弯矩的受力分配比,试验结果与有限元分析结果具有较好的一致性.

关键词: 装配式钢框架结构; 新型节点; 法兰连接; 栓焊连接节点; 静力试验; 有限元分析

中图分类号:TU391 文献标志码:A 文章编号:1002-848X(2023)05-0090-08

DOI:10. 19701 / j. jzjg. 20201357

Experimental study and finite element analysis on mechanical behavior of flange bolted-welded connection joints of fabricated steel frame column

SHU Xingping1, QIAN Xin1, LIU Xiaoyu1, HE Ran2, ZHANG Zaihua2, YAO Yao1

(1 College of Civil Engineering, Hunan University, Changsha 410082, China; 2 College of Civil Engineering,Hunan City University, Yiyang 413099, China)

Abstract: In order to study the engineering application of a new type of flange bolted-welded connection column joints inmulti-stored steel structures, static loading tests were carried out on 3 full-scale model specimens of flange connection, andthe ABAQUS finite element model was established to carry out comparative demonstration and theoretical analysis. Theanalysis results show that the new type of flange bolted-welded connection joints stress performance is good, and thestiffness and bearing capacity are improved compared to traditional flange connection. The failure mode of the new typeflange bolted-welded connection joint has been improved. The stress distribution ratio between the bolt of the new typeflange bolted-welded connection joint and the bending moment of the welding joint under different weld sizes was obtained,the experimental results are in good agreement with the finite element analysis results.

Keywords:fabricated steel frame structure; new joint; flange connection; bolted-welded connection joint; static test; finiteelement analysis

∗国家自然科学基金项目(51778219).

第一作者:舒兴平,博士,教授,博士生导师,主要从事钢结构高等分析与设计,高层及高耸钢结构设计计算理论等,Email:hulget@ 163. com.

[引用本文] 舒兴平,钱鑫,刘筱钰,等. 装配式钢框架柱法兰栓焊连接节点受力性能试验研究与有限元分析[ J].建筑结构,2023,53 ( 5):90-97. SHU Xingping,QIAN Xin,LIU Xiaoyu, et al. Experimental study and finite elementanalysis on mechanical behavior of flange bolted-welded connection joints of fabricated steel frame column[ J]. BuildingStructure,2023,53(5):90-97.