| 钢管混凝土柱脚的承载性能分析 |
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| 引用本文： | 孟令强,李运生,王元清.钢管混凝土柱脚的承载性能分析[J].石家庄铁道学院学报(社会科学版),2009(4):6. |
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| 作者姓名： | 孟令强 李运生 王元清 |
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| 作者单位： | 中铁大桥局集团 第四工程有限公司;石家庄铁道学院 土木工程分院;清华大学 结构工程与振动教育部重点实验室 |
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| 基金项目： | 河北省自然科学基金资助项目(E2009000893) |
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| 摘 要： | 为了研究钢管混凝土柱与钢筋混凝土基础之间的柱脚连接性能，采用ANSYS软件进行了钢管混凝土柱脚在单向加载和低周期反复加载下承载性能的有限元分析，明确了柱脚中性轴的变化规律，给出了单向加载下柱脚的破坏特征，分析了低周反复荷载下该柱脚节点的滞回性能。研究表明：该柱脚节点的工作性能可靠，总体抗震性能良好；随着轴压比的增大其抗震性能表现出先增强后减小的趋势。
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| 关 键 词： | 钢管混凝土 柱脚 单向加载 反复加载 滞回曲线 |
| 收稿时间： | 2009/6/11 0:00:00 |
Bearing Capacity Analysis of Concrete filled Steel Tubular Column Foot |
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| Authors: | Meng Lingqiang Li Yunsheng and Wang Yuanqing |
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| Institution: | The 4th Engineering Company Limited, Zhongtie Major Bridge Engineering Group;School of Civil Engineering, Shijiazhuang Railway Institute;Key Laboratory of Structural Engineering and Vibration of Education Ministry, Tsinghua University |
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| Abstract: | In order to study the behaviors of connection between concrete filled steel tubular column and reinforced concrete foundation, the bearing capacity of the column foot is analyzed by ANSYS FE models under uniaxial loading and repeated low cycle loading respectively. The change pattern of neutral axis is obtained. The static loading damage characteristics and hysteretic behavior of the tubular foot are analyzed. The analysis shows that the tubular foot is featured with excellent working performance and high seismic behavior. The seismic behavior of the tubular foot firstly increases and then decreases with the axial compression ratio increasing. |
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| Keywords: | concrete filled steel tube tubular foot uniaxial loading cycle loading hysteretic curve |
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