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Eccentric Compression Strength of Rectangular Concrete-Filled Tubular Columns Using High-Strength Steel Thin Plates
| 题名： | Eccentric Compression Strength of Rectangular Concrete-Filled Tubular Columns Using High-Strength Steel Thin Plates |
| 正文语种： | 英文 |
| 作者： | Ho-Jun Lee; In-Rak Choi;Hong-Gun Park, M.ASCE |
| 作者单位： | Seoul National Univ;Building Structure Research Group, POSCO Global R&D Center |
| 关键词： | Concrete-filled tube; High-strength steel; Slender section; Stiffener; Eccentric axial loading; Metal and composite structures. |
| 摘要： | An experimental study was performed to investigate the structural behavior of thin-walled rectangular concrete-filled tubular (RCFT) columns. This study mainly focused on the effects of a high-strength steel slender section on the overall eccentric compression capacity. The test parameters included the width-to-thickness ratio of steel plates, yield strength of steel plates, and use of stiffeners. Five specimens were tested under eccentric axial loading. In the slender-section specimens, despite early local buckling, significant postbuckling reserve strength developed. Consequently, the predictions of a current specification significantly underestimated the load-carrying capacity of the slender-section specimens. The specimens strengthened with vertical stiffeners exhibited enhanced strength and ductility, attaining the plastic capacity of the composite section. Furthermore, a design method of vertical stiffener was developed for high-strength steel RCFT columns. DOI: 10.106l/(ASCE)ST.1943-541X.0001724. © 2016 American Society of Civil Engineers. |
| 出版日期： | 2017.05 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.05 |
| 页码： | 04016228 |
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