张  伟¹，许  宁²，黄  奔²，彭海雁¹，刘  亘²
    （1 长沙理工大学土木与建筑学院，长沙410004；2 中国建筑第五工程局有限公司，长沙410004）

[摘要] 为确定实际工程中折线形钢箱柱的一些受力状态和破坏特征，建立了该构件的有限元模型，对折线形钢箱柱的受力、变形等进行有限元分析，并建立了1:8 的实体模型进行极限承载力的模型试验。最后，将试验结果与软件模拟结果进行了比较，提出一些对折线形钢箱柱的设计、工厂加工、现场吊装及施工监控有益的建议。
[关键词] 折线形钢箱柱；非线性有限元；模型试验；极限承载力

Performance research on the ultimate bearing capacity of folded line steel box column
Zhang Wei¹, Xu Ning², Huang Ben², Peng Haiyan¹,  Liu Gen²
(1 School of Civil Engineering, Changsha University of Science and Technology, Changsha 410004, China; 2 China Construction Fifth Engineering Division Co.,  Ltd., Changsha 410004,  China)

Abstract: To determine the stressful condition and destruction characteristics of the folded line steel box column in actual project, the finite element model was established, and the folded line steel box column's stress and deformation were analyzed. The experiments of ultimate bearing capacity on folded line steel box column were also performed, and the proportion of the mode is l:8. Finally, the comparision of the test and the software simulation was carried out. On the basis of them, some suggestions about designing, manufacturing, hoisting and monitoring of folded line steel box column were proposed.
Keywords: folded line steel box column; nonlinear finite element; model experiment; ultimate bearing capacity