Abstract
A finite strip model for elastic and elastic-plastic local buckling is used to study the behavior of steel plates in SHS (square hollow section) steel tube filled with concrete. The steel plate subjected to compression and bending is analyzed, and the residual stress is also considered. The analytical result shows that the steel tube filled with concrete can not improve its buckling capacity when the width-to-thickness ratio is less than 30. When the width-to-thickness ratio is over 30, the core concrete can improve the buckling capacity of steel plate evidently with the increase of width-to-thickness ratio. The elastic buckling capacity of steel tube filled with concrete is 2. 58 times as that of hollow steel tube. The bending baring capacity of steel plate in the composite column can be improved. Residual stress of the steel plate will decrease the elastic and elastic-plastic buckling capacity. The bigger the residual stress is, the lower the buckling stress is.
| Original language | English |
|---|---|
| Pages (from-to) | 1350-1354 |
| Number of pages | 5 |
| Journal | Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology |
| Volume | 38 |
| Issue number | 8 |
| State | Published - Aug 2006 |
| Externally published | Yes |
Keywords
- Concrete-filled
- Elastic buckling
- Elastic-plastic buckling
- Square hollow section (SHS)
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