| 哑铃型钢管混凝土轴压短柱力学性能分析 |
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| 引用本文： | 丁发兴,李大稳,余志武,欧进萍.哑铃型钢管混凝土轴压短柱力学性能分析[J].铁道科学与工程学报,2011(2):1-6. |
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| 作者姓名： | 丁发兴 李大稳 余志武 欧进萍 |
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| 作者单位： | 中南大学土木建筑学院;哈尔滨工业大学土木工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50808180); 教育部博士点基金资助项目(200805331064); 湖南省自然科学基金资助项目(07JJ4014) |
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| 摘 要： | 采用混凝土单轴受力应力-应变关系统一计算公式,应用ABAQUS有限元软件建立哑铃型钢管混凝土轴压短柱三维有限元实体模型.将哑铃型钢管混凝土轴压短柱的荷载-变形曲线简化为2圆钢管混凝土轴压短柱、钢腹板和腹腔内混凝土的荷载-变形曲线简单叠加,建立弹塑性法.对比了有限元法和弹塑性法计算结果与试验结果,2种方法与试验结果较吻合...
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| 关 键 词： | 哑铃型钢管混凝土柱 极限承载力 有限元法 弹塑性法 |
Behavior of axially loaded concrete-filled steel tubular dumbbell shaped stub columns |
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| DING Fa-xing,LI Da-wen,YU Zhi-wu,OU Jin-ping.Behavior of axially loaded concrete-filled steel tubular dumbbell shaped stub columns[J].Journal of Railway Science and Engineering,2011(2):1-6. |
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| Authors: | DING Fa-xing LI Da-wen YU Zhi-wu OU Jin-ping |
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| Institution: | DING Fa-xing1,2,LI Da-wen1,YU Zhi-wu1,OU Jin-ping2(1.School of Civil Engineering and Architecture,Central South University,Changsha 410075,China,2.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | Applying unified formula for stress-strain relations of concrete under unixial load,ABAQUS was used to establish the 3D finite element model and to analyze the behavior of concrete-filled circular steel tubular(CFST) dumbbell shaped stub columns under axial compression.The elasto-plastic method was also used to analyze the load-deformation curve of CFST dumbbell shaped stub columns when the CFST dumbbell shaped stub column was simplified as superposition with the two CFST stub columns,the two steel webs and... |
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| Keywords: | concrete filled steel tubular dumbbell shaped columns ultimate load capacity finite element method elasto-plastic method |
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