| 有限元法研究钢管混凝土框架的滞回性能 |
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| 引用本文： | 卢明奇.有限元法研究钢管混凝土框架的滞回性能[J].武汉大学学报(工学版),2005,38(4):59-62. |
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| 作者姓名： | 卢明奇 |
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| 作者单位： | 天津大学建筑工程学院,天津,300072 |
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| 摘 要： | 建立了钢管混凝土框架结构的三维非线性有限元分析模型,通过与在低周反复荷载作用下的方钢管混凝土框架结构试验所得的滞回曲线进行对比,可见该模型的计算结果较为精确,可以应用于框架的结构分析中.利用此模型对在低周反复荷载作用下的柱轴压比不同的钢管混凝土框架结构进行有限元分析,对比研究了其滞回曲线和位移延性系数,得出了随着框架柱轴压比的增大,框架延性降低的结论.
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| 关 键 词： | 轴压比 钢管混凝土 框架 滞回性能 有限元 |
| 文章编号： | 1671-8844(2005)04-059-04 |
| 修稿时间： | 2005年3月12日 |
Investigation on hysteretic behavior of concrete-filled steel tubular frame by finite element method |
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| LU Ming-qi.Investigation on hysteretic behavior of concrete-filled steel tubular frame by finite element method[J].Engineering Journal of Wuhan University,2005,38(4):59-62. |
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| Authors: | LU Ming-qi |
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| Abstract: | A 3-D nonlinear finite element analysis model of concrete-filled steel tubular frame is proposed. Compared with the experimental hysteretic curve, the computational results are found to be highly accurate; and it is shown that this model proposed can be applied to structural analysis of concrete-filled steel tubular frames. So the model is used in the finite element analysis of concrete-filled rectangular tubular frames with different axial load levels under low-reversed cyclic loading. Compared the computational hysteretic curves and displacement ductility ratios, it can be concluded that the ductility of concrete-filled steel tubular frames reduces with the increasing of the axial load levels. |
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| Keywords: | axial load level concrete-filled steel tube frame hysteretic behavior finite element |
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