Performance and calculations of concrete filled steel tubes (CFST) under axial tension
Performance and calculations of concrete filled steel tubes (CFST) under axial tension
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轴拉钢管混凝土（CFST）的性能与计算
DOI：
10.1016/j.jcsr.2011.04.005
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发表时间：
2011-11-01
影响因子：
4.1
通讯作者：
Liao, Fei-Yu
中科院分区：
文献类型：
--
作者：
Han, Lin-Hai;He, Shan-Hu;Liao, Fei-Yu
本文研究了钢管混凝土的轴向受拉性能。共测试了18个样本。主要参数为含钢率、混凝土类型、钢管与核心混凝土之间有无粘结。建立了钢管混凝土轴向受拉的有限元模型，对钢管混凝土轴向受拉过程进行了机理分析和参数研究。结果表明，钢管混凝土中核心混凝土的存在可以提高钢管的抗拉强度。最后，提出了一个可以预测抗拉强度的简化公式。(C)2011爱思唯尔有限公司保留所有权利。
This paper reports the behavior of concrete filled steel tubes (CFST) under axial tension. A total of 18 specimens were tested. The main parameters were steel ratio, concrete type and bond or unbonded between the steel tube and its core concrete. A finite element model (FEM) was developed to perform mechanism analysis and parametric studies for CFST under axial tension. It was found that the tensile strength of steel tube can be increased due to the existence of the core concrete in CFST. Finally, a simplified formula that can predict the tensile strength was proposed. (C) 2011 Elsevier Ltd. All rights reserved.