Plastic mechanism analysis of concrete-filled double-skin (SHS inner and SHS outer) stub columns
- Authors
- Zhao, XL; Han, BK; Grzebieta, RH
- Issue Date
- Oct-2002
- Publisher
- ELSEVIER SCI LTD
- Keywords
- plastic mechanism analysis; yield line theory; tubes; stub columns; composite sections
- Citation
- THIN-WALLED STRUCTURES, v.40, no.10, pp.815 - 833
- Journal Title
- THIN-WALLED STRUCTURES
- Volume
- 40
- Number
- 10
- Start Page
- 815
- End Page
- 833
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/26794
- DOI
- 10.1016/S0263-8231(02)00030-7
- ISSN
- 0263-8231
- Abstract
- A plastic mechanism to predict the collapse behaviour of concrete-filled double-skin stub columns is developed and analysed in this paper. Both outer and inner tubes are square hollow sections (SHS). In the analysis, the inner tube is treated the same way as that used in previous research on empty SHS stub columns. New mechanism models are developed for the outer tubes. The effect of local buckling in the outer tube is also studied. The concrete model adopted in this paper considers the effect of confinement of the concrete induced by the double skin tubes. It also considers the strength degradation of concrete for large deformation analysis. It has been found that the effect of local buckling on the collapse curve of the outer tube can be ignored. The concrete model including confinement and strength degradation should be used in order to simulate the collapse behaviour, especially for thin outer tubes. Good agreement was achieved between the plastic mechanism analysis and experimental results. (C) 2002 Elsevier Science Ltd. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.