轴压下圆形钢管混凝土短柱承载力的简化计算
Simplified Calculation of Ultimate Strength for Axial-Loaded Circular CFT Stub Columns
DOI: 10.12677/HJCE.2018.75078, PDF,    科研立项经费支持
作者: 孙 刚*, 卓献荣, 邱华耀：仲恺农业工程学院城市建设学院，广东 广州；欧桂鑫：广州市中大科教职业培训学校，广东 广州
关键词: 圆形钢管混凝土；短柱；极限承载力；Circular Concrete-Filled Steel Tube； Stub Column； Ultimate Strength
摘要: 本文阐述了圆形钢管混凝土轴压短柱的受力机理，并基于试验结果确定了混凝土强度提高系数和钢管纵向强度折减系数，建立了该类构件承载力的简化计算公式。用建议公式对28个试验试件进行承载力计算，计算结果与试验结果和规范计算结果吻合良好。
Abstract: In this paper, the bearing mechanism of axial-loaded circular concrete-filled steel tube (CFT) stub column is analyzed. Based on experimental results, the increase coefficient of concrete strength and the reduction ratio of steel longitudinal stress are analyzed and determined. Then, the simplified calculation equations of circular concrete-filled steel tube stub columns subjected to axial load are proposed. Finally, 28 specimens are calculated with the proposed equations, and the calculated results agree with the experimental and normative ones very well.
文章引用：孙刚, 卓献荣, 欧桂鑫, 邱华耀. 轴压下圆形钢管混凝土短柱承载力的简化计算[J]. 土木工程, 2018, 7(5): 667-670. https://doi.org/10.12677/HJCE.2018.75078

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