Experimental study on steel tubular columns in-filled with plain and steel fiber reinforced concrete
Experimental study on steel tubular columns in-filled with plain and steel fiber reinforced concrete
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DOI：
10.1016/j.tws.2010.01.009
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发表时间：
2010-06
影响因子：
6.4
通讯作者：
Serkan Tokgoz;C. Dundar
中科院分区：
文献类型：
--
作者：
Serkan Tokgoz;C. Dundar
本文对钢管素混凝土柱和钢管钢纤维混凝土柱的受力性能进行了试验研究。对16根钢管混凝土柱进行了双向压弯和短期轴压试验。试验研究中考虑的主要变量是横截面、细长度、混凝土抗压强度和荷载偏心率。提出了一种钢管混凝土柱极限承载力和荷载-挠度曲线的理论计算方法。在分析过程中，考虑了材料的非线性行为，并考虑了细长效应。对钢管素纤维混凝土柱和钢管钢纤维混凝土柱的极限承载力和荷载-挠度曲线进行了试验研究，并与理论分析结果进行了比较和讨论。试验结果表明，核心混凝土中钢纤维的掺入对钢管混凝土柱的受力性能有较大的影响。
An experimental investigation on the structural behaviour of steel tubular columns in-filled with plain and steel fiber reinforced concrete is presented in this study. A total of 16 concrete-filled steel tubular columns were constructed and tested subjected to biaxial bending and short-term axial load. The main variables considered in the test study were the cross section, slenderness, concrete compressive strength and the load eccentricity. In the presented study, a theoretical method for the prediction of ultimate strength capacity and load-deflection curves of concrete filled steel tube columns is proposed. In the analysis procedure, the nonlinear behaviour of the materials is considered and the slenderness effect has been taken into account. The experimental ultimate strength capacities and load-deflection curves of both plain and steel fiber concrete-filled tube columns have been compared with the analysis results and discussed in the paper. The results indicate that the addition of steel fibers in core concrete has considerable effect on the behaviour of concrete-filled steel tube columns.