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工程力学  2014 

内配型钢方钢管混凝土轴压短柱力学性能及参数分析

, PP. 201-206

Keywords: 结构工程,内配型钢钢管混凝土,轴压短柱,有限元模型,数值模拟,参数分析

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Abstract:

在钢管混凝土构件内部配置型钢可显著提高其承载能力和延性等性能。在合理选取材料本构模型的基础上,用ABAQUS软件建立了内配型钢的方形钢管混凝土轴压短柱受力全过程分析的数值模型,数值计算结果和已有研究者完成的试验结果吻合良好,基于此模型对其在轴压受力全过程中各部件的荷载分配进行了分析。在工程常用参数范围内对影响其荷载-变形曲线的主要因素进行了参数分析,结果表明：随着钢管强度、型钢强度、混凝土强度、钢管和型钢截面含钢率的提高构件的极限承载力有所提高。参数分析的结果上可为进一步明晰该类组合构件工作机理和确定承载力指标等提供基础。

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