Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression
Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression
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DOI：
10.1016/j.tws.2015.04.020
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发表时间：
2015-09-01
影响因子：
6.4
通讯作者：
Li, Da-wen
中科院分区：
文献类型：
--
作者：
Ding, Fa-xing;Liu, Jing;Li, Da-wen
本文对圆钢管混凝土短柱和方形钢管混凝土短柱在局部受压下的受力性能进行了试验和数值研究。进行了12根圆形钢管混凝土短柱和8根方形钢管混凝土短柱的试验，研究了它们的承载能力及其主要影响参数。建立了三维有限元模型进行模拟和参数研究，研究了短柱的结构性能。数值计算结果与实验结果吻合较好。此外，还提出了钢管混凝土短柱局部受压承载力的解析计算公式。(C)2015爱思唯尔有限公司。保留所有权利。
This paper presents a combined experimental and numerical study on the behavior of both circular and square concrete-filled steel tube (CFT) stub columns under local compression. Twelve circular and eight square CFT stub columns were tested to study their bearing capacity and the key influential parameters. A 3D finite element model was established for simulation and parametric study to investigate the structural behavior of the stub columns. The numerical results agreed well with the experimental results. In addition, analytical formulas were proposed to calculate the load bearing capacity of CFT stub columns under local compression. (C) 2015 Elsevier Ltd. All rights reserved.