论文部分内容阅读
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。
Through the eccentric compression tests on 9 concrete filled square steel tubular columns, the influences of eccentricity, slenderness ratio and concrete strength on the mechanical behaviors of the concrete filled square steel tubular columns under eccentric load were studied. The results show that eccentricity and slenderness ratio are the main factors that affect the mechanical behavior of this kind of member. With the increase of slenderness ratio and eccentricity, the ultimate bearing capacity of the column decreases and the failure mode changes. The effect is very small. Only when the slenderness ratio and the eccentricity are small, can the bearing capacity be enhanced.