李  斌，高春彦，王  斌，张  飞
    (内蒙古科技大学建筑与土木工程学院，包头014010)

[摘要] 通过对9根方钢管混凝土柱的偏心受压试验，分析研究了偏心率、长细比和混凝土强度等参数对方钢管混凝土偏心受压柱受力性能的影响规律。结果表明：偏心率和长细比是影响该种构件受力性能的主要因素，随着长细比和偏心率的增长，柱的极限承载力降低，破坏模式改变；混凝土强度对柱受力性能的影响甚微，只有长细比和偏心率较小时才有提高承载力的作用。
[关键词] 方钢管混凝土；偏心受压柱；偏心率；长细比

Research on the mechanics behavior of concrete-filled square steel tubular columns subjected to eccentric compression
Li Bin, Gao Chunyan, Wang Bin, Zhang Fei
( School of Architecture & Civil Engineering,lnner Mongolia University of Science & Technology, Baotou 014010, China)

Abstract: Through eccentric compression experiment on nine concrete-filled square steel tube columns, the influence laws of eccentricity ratios, slenderness ratios and concrete strength on the mechanics behavior of the concrete-filled square steel tubular columns subjected to eccentric compression were researched. The results indicate that the eccentricity ratios and slenderness ratios are the primary factors to influence the mechanics behavior of the specimens, and with the increase of eccentricity ratios and slenderness ratios, the beanng capacity of the columns reduce gradually, the failure mode change. The influence of concrete strength on the mechanics behavior of the concrete-filled square steel tube columns subjected to eccentric compression is very slight and the bearing capacity of the columns can be increased only when the eccentricity ratios and slenderness ratios are very small.
Keywords: concrete-filled square steel tube; column subjected to eccentric compression; eccentricity ratio; slenderness ratio