Composite action of octagonal concrete-filled steel tubular stub columns under axial loading
Composite action of octagonal concrete-filled steel tubular stub columns under axial loading
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八角形钢管混凝土短柱轴压复合作用
DOI：
10.1016/j.tws.2016.07.012
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发表时间：
2016-10
影响因子：
6.4
通讯作者：
Yu Zhi-wu
中科院分区：
文献类型：
--
作者：
Ding Fa-xing;Li Zhe;Cheng Shanshan;Yu Zhi-wu
本文对八角形钢管混凝土轴压短柱的受力性能进行了试验、数值和理论研究。通过8个八角形钢管混凝土短柱的轴压试验，研究了混凝土强度和含钢率对八角形钢管混凝土短柱受力和变形性能的影响。为探讨八角形钢管混凝土短柱中钢管与核心混凝土的组合作用，建立了三维有限元模型，进行了参数研究。此外，还提出了考虑核心混凝土与钢管共同作用时钢管竖向承载力放大系数为1.5的八角形钢管混凝土短柱极限承载力实用计算公式。
This paper presents a combined experimental, numerical and theoretical study on the mechanical performances of octagonal CFT stub columns subjected to axial compressive loading. Eight specimens of axial compression tests have been carried out aiming at investigating the effects of the concrete strength and steel ratio on the mechanical and deformed behavior of octagonal CFT stub columns. 3D finite element modelling was established for parametric studies to probe into the composite action between the steel tube and the core concrete of the octagonal CFT stub column. In addition, a practical formula has been proposed to predict the ultimate bearing capacity of the octagonal CFT stub column with the confinement coefficient of 1.5, which is an amplification coefficient of the vertical bearing capacity of steel tube considering the composite action between the core concrete and the steel tube.
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影响因子：
6.4
作者：
Ding, Fa-xing;Liu, Jing;Li, Da-wen
通讯作者：
Li, Da-wen
影响因子：
5.5
作者：
X. Chang;Chengkui Huang;Ya-Juan Chen
通讯作者：
X. Chang;Chengkui Huang;Ya-Juan Chen
影响因子：
4.1
作者：
F. Ding;C. Fang;Yu Bai;Gong Yongzhi
通讯作者：
F. Ding;C. Fang;Yu Bai;Gong Yongzhi
轴压方箍筋约束钢管混凝土短柱对比研究
影响因子：
6.4
作者：
Ding, Fa-xing;Lu, De-ren;Jiang, Guo-shuai
通讯作者：
Jiang, Guo-shuai
影响因子：
6.4
作者：
Liu, DL;Gho, WM
通讯作者：
Gho, WM