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圆钢管混凝土桁架K形节点极限承载力计算方法研究
Authors
王静峰
邓权
邢文彬
Publication date
1 January 2018
Publisher
Editorial Department of Progress in Steel Building Structures, Tongji University
Doi
Cite
Abstract
圆钢管桁架在主管内填筑混凝土,可有效提高其承载力。为了获得圆钢管混凝土桁架K形节点受力性能和承载力计算方法,研究了在受拉或受压支管处K形节点的失效模式和破坏机理;基于圆钢管混凝土K形节点在不同失效模式下的破坏机理和受力状态,分别对支管截面形式为圆形或矩(方)形的圆钢管混凝土K形节点建立合理的简化计算模型,推导出不同失效模式下K形节点极限承载力计算公式,并给出相应的极限承载力建议公式。试验验证了圆钢管混凝土K形节点的试验值与计算值吻合较好,研究表明圆钢管混凝土K形节点的极限承载力计算公式的准确性,可应用于圆钢管混凝土桁架结构计算和设计,也为相关标准建立和完善提供理论依据
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Last time updated on 28/12/2024