| 圆中空夹层钢管混凝土内管径厚比限值探讨 |
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| 引用本文： | 黄宏.圆中空夹层钢管混凝土内管径厚比限值探讨[J].华东交通大学学报,2011,28(3):31-34. |
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| 作者姓名： | 黄宏 |
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| 作者单位： | 华东交通大学土木建筑学院,江西南昌,330013 |
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| 基金项目： | 国家自然科学基金项目，江西省自然科学基金项目 |
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| 摘 要： | 圆中空夹层钢管混凝土是一种新型的组合结构,合理确定其内钢管的径厚比限值对该类构件的设计有着重要指导作用.采用有限元软件ABAQUS建模,对轴心受压下圆中空夹层钢管混凝土构件的内钢管与混凝土的相互作用进行分析,根据分析结果可模拟内管的边界条件,进而研究内管径厚比对构件承载力的影响,研究结果表明内管径厚比越大,就越早出现局...
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| 关 键 词： | 中空夹层钢管混凝土 内管 径厚比 |
Limitation of Diameter to Thickness Ratio of Concrete-filled Double-skin Steel Tubular Column (CHS inner and CHS outer) |
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| Huang Hong.Limitation of Diameter to Thickness Ratio of Concrete-filled Double-skin Steel Tubular Column (CHS inner and CHS outer)[J].Journal of East China Jiaotong University,2011,28(3):31-34. |
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| Authors: | Huang Hong |
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| Affiliation: | Huang Hong(School of Civil Engineering and Architecture,East of China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | Concrete filled double-skin steel tubular（CFDST） column is a new type of composite structure.It will be helpful to design this type of structure if the limitation of diameter to thickness ratio is reasonable.The interaction between the inner steel tube and concrete of CFDST column subjected to axial compression is analyzed by ABAQUS software.On this basis,boundary conditions can be simulated,and the interaction of capacity with different diameter to thickness ratio is researched.The results indicate that the larger diameter to thickness ratio is,the earlier local buckling appears.Influences of local buckling on bearing capacity of internal pipe and outer pipe are compared.The results show that influences of local buckling on bearing capacity of outer pipe are larger than that of internal pipe.It is suggested that the limitation of diameter to thickness ratio of internal pipe can adopt that of outer pipe. |
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| Keywords: | concrete filled double-skin steel tubular（CFDST） inner steel tube diameter to thickness ratio |
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