Analysis of the composite effect of partially concrete-encased H-shaped steel composite columns

被引：1
|
作者：
Yin, Z.Z. [1 ,2 ]
Chen, S.L. [1 ]
Liang, Y.X. [1 ]
Chen, W. [1 ]
机构：
[1] School of Civil Engineering, Lanzhou University of Technology, Lanzhou,730050, China
[2] Western Engineering Research Centre of Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou,730050, China
来源：
Materials Research Innovations | 2015年 / 19卷
关键词：
Buckling - Columns (structural) - Steel construction - Deformation - Finite element method;
D O I：
10.1179/1432891715Z.0000000002124
中图分类号：
学科分类号：
摘要：
To research the composite effect of partially concrete-encased composite columns, the axial compression analysis of three groups of 12 specimens (six H-shape steel partially concreteencased composite columns and six H-shape steel columns) was conducted by using the commercial finite element software ANSYS. The results show that partially concrete-encased composite columns possess sound mechanical performance as demonstrated by higher ultimate strength, deformability, stability and lateral stiffness than bare steel columns. The total cross-section of concrete and steel of partially concrete-encased composite columns both yield when specimens are damaged, showing better compatibility for deformation. Partially concreteencased composite provides good restraint for H-shaped steel to prevent local buckling, and the H-shaped steel confines the concrete, increasing its strength and ductility. Moreover, there is superior interaction effect between the concrete and the steel. © 2015 W. S. Maney & Son Ltd.
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页码：133 / 138
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