| 长期荷载作用下圆端形钢管混凝土力学性能 |
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| 引用本文： | 廖仁生,李永进,刘文华,张铮.长期荷载作用下圆端形钢管混凝土力学性能[J].福建工程学院学报,2022,0(1):48-52. |
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| 作者姓名： | 廖仁生 李永进 刘文华 张铮 |
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| 作者单位： | 福建江夏学院 |
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| 摘 要： | 采用有限元法，全过程分析了考虑长期荷载作用下时构件的应变-荷载曲线。基于有限元模型，分析了长期荷载作用下圆端形钢管混凝土柱的工作机理。结果表明:考虑长期荷载作用影响对圆端形钢管混凝土柱的内力分布、变形有较大影响，对承载力影响不大，且随着高宽比的增大，构件的峰值荷载增大，延性减小。
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| 关 键 词： | 圆端形钢管混凝土 长期荷载 轴压 力学性能 |
Mechanical properties of concrete-filled steel tubes with round ends under long-term load |
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| LIAO Rensheng,LI Yongjin,LIU Wenhua,ZHANG Zheng.Mechanical properties of concrete-filled steel tubes with round ends under long-term load[J].Journal of Fujian University of Technology,2022,0(1):48-52. |
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| Authors: | LIAO Rensheng LI Yongjin LIU Wenhua ZHANG Zheng |
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| Institution: | School of Engineering, Fujian Jiangxia University |
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| Abstract: | The finite element method was used to analyze the whole process of the strain-load curve of the member considering the long-term load. Based on the finite element model, the working mechanism of the round-end concrete-filled steel tube column under long-term load was analyzed. Research results show that the effect of long-term load has a greater impact on the internal force distribution and deformation of the round-end concrete-filled steel tube column, but has little impact on the bearing capacity, and as the aspect ratio increases, the peak load of the member increases and the ductility decreases. |
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| Keywords: | round-end concrete-filled steel tubes long-term load axial pressure mechanical properties |
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