Structural behaviour of beam to concrete-filled elliptical steel tubular column connections
Structural behaviour of beam to concrete-filled elliptical steel tubular column connections
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DOI：
10.1016/j.istruc.2016.09.005
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发表时间：
2017-02
期刊：
影响因子：
4.1
通讯作者：
Jie Yang;Therese Sheehan;X. Dai;D. Lam
中科院分区：
文献类型：
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作者：
Jie Yang;Therese Sheehan;X. Dai;D. Lam
椭圆空心截面（EHS）最近已在建筑中使用，因为其视觉外观以及由于两个主轴的存在而具有潜在的结构效率。然而，目前关于梁与椭圆柱连接设计的信息很少，而梁与椭圆柱连接是建筑结构的重要组成部分。因此，为了确保 EHS 的安全和经济应用，一个新的研究项目已经启动。对简单螺栓梁与混凝土椭圆钢柱连接的旋转行为进行了实验研究。考虑了各种接缝类型，并强调了采用核心混凝土和加强筋的好处。本文涵盖了使用 ABAQUS 标准求解器进行的实验研究和连接模拟。给出了数值结果与实验结果之间联系的失效模式和力矩与旋转关系的比较。获得了良好的一致性，因此采用开发的有限元模型进行初步参数研究，以探讨关键参数对梁与混凝土填充椭圆柱连接结构行为的影响。
Elliptical hollow sections (EHSs) have been utilized in construction recently because of their visual appearance as well as the potential structural efficiency owing to the presence of the two principle axes. However, little information currently exists for the design of beam to elliptical column connections, which is an essential part of a building structure. Thus, to ensure the safe and economic application of EHSs, a new research project has been initiated. Rotation behaviour of simply bolted beam to concrete-filled elliptical steel column connections was investigated experimentally. Various joint types were considered and the benefits of adopting core concrete and stiffeners were highlighted. This paper covers the experimental studies and simulation of the connections using the ABAQUS standard solver. Comparisons of failure modes and moment vs. rotation relationships of the connections between numerical and experimental results were given. Good agreement has been obtained and the developed finite element model was therefore adopted to conduct a preliminary parametric study to explore the effect of critical parameters on the structural behaviour of beam to concrete-filled elliptical column connections.