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钢管混凝土组合柱变形能力计算方法

, PP. 42-47

Keywords: 钢管混凝土组合柱,屈服位移角,极限位移角,变形能力

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Abstract:

为研究钢管混凝土组合柱的变形能力,建立了屈服曲率和极限曲率的计算式。屈服曲率与受拉纵筋的屈服应变、柱截面高度、轴压比、配箍特征值和钢管含管特征值有关,极限曲率与柱截面高度、轴压比、配箍特征值和含管特征值有关。通过对58个组合柱试件试验数据分析,得到了计算式的相关参数,由此可计算组合柱的屈服位移角和极限位移角,计算结果与试验结果符合良好。

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