论文部分内容阅读
通过8根GFRP管钢骨高强混凝土组合柱偏心受压试验,研究了GFRP管纤维缠绕角度、管壁厚度、长细比及偏心距等参数对组合柱受力性能的影响。试验结果表明:组合柱承载力随着GFRP管壁纤维缠绕角度的减小、管壁厚度的增加而提高,随着长细比增大、偏心距增加而降低。根据试验研究与理论分析,建立GFRP管钢骨高强混凝土偏心受压组合柱承载力计算公式,理论计算结果与试验结果吻合良好。
Through the eccentric compression test of 8 GFRP steel reinforced high-strength concrete composite columns, the influences of fiber winding angle, wall thickness, slenderness ratio and eccentricity on the mechanical behavior of composite columns were studied. The experimental results show that the bearing capacity of composite column increases with the decrease of fiber winding angle and wall thickness of GFRP, and decreases with the increase of slenderness ratio. According to the experimental research and theoretical analysis, the formula for calculating the bearing capacity of GFRP-reinforced high-strength concrete-filled steel tubular columns under eccentric compression is established. The theoretical calculation results are in good agreement with the experimental results.