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在对8根高配筋率的外包钢高强混凝土小偏压短柱试验基础上,进行了角钢与混凝土整体共同工作情况、外包钢小偏压短柱的破坏形态、曲率和挠度分布规律、角钢与受压区混凝土的受力性能、承载力计算、提高配筋率与配箍率及采用高强混凝土对小偏压柱受力性能的影响等多方面的分析研究.还对高配筋外包钢高强混凝土小偏压柱进行了全过程分析.并进一步得出了承载能力直接计算法的简易公式.
On the basis of 8 small biased short column tests for high-strength steel-encased concrete with high reinforcement ratios, the joint working conditions of the angle steel and the concrete and the failure modes, curvature and deflection distribution of the small biased short columns of the outer steel were performed. The analysis of stress properties, bearing capacity, reinforcement ratio and stirrup ratio of concrete in angle steel and compression zone, and the influence of high-strength concrete on the mechanical properties of small eccentric columns were analyzed. 3. The whole process analysis of high - strength steel reinforced high - strength concrete biased columns with high reinforcement was also carried out. And further obtained a simple formula for the direct calculation method of bearing capacity.