| Strength and Deformation of Axially Loaded Fiber-Reinforced Polymer Sheet Confined Concrete Columns |
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| 作者姓名： | 李静 钱稼茹 蒋剑彪 |
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| 作者单位： | [1]DepartmentofCivilEngineering,TsinghuaUniversity,Beijing100084,China [2]BeijingTexidaTechnicalLimitedCompany,Beijing100011,China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (No. 50238030) |
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| 摘 要： | Experimental results of 29 axially loaded fiber-reinforced polymer sheet (FS) confined concrete columns and two reference plain concrete columns are introduced. Twenty four column specimens were confined with carbon fiber sheet (CFS) and five column specimens were hybrid confined with both CFS and glass fiber sheet (GFS). The influence of aspect ratio, FS material, initial axial force ratio, and FS confinement degree on the strength and deformation of columns were studied. Based on the experimental results, the equations of complete stress-strain curve of CFS confined concrete are proposed. These equations are suitable for the nonlinear analysis of square and rectangular section columns. Suggestions of applying FS to confine concrete columns are presented.
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| 关 键 词： | 光纤加固聚合薄板 形变 约束混凝土柱 轴向压缩力 应力应变曲线方程 |
Strength and Deformation of Axially Loaded Fiber-Reinforced Polymer Sheet Confined Concrete Columns |
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| LI Jing,QIAN Jiaru.Strength and Deformation of Axially Loaded Fiber-Reinforced Polymer Sheet Confined Concrete Columns[J].Tsinghua Science and Technology,2004,9(2):130-137. |
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| Authors: | LI Jing QIAN Jiaru |
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| Abstract: | Experimental results of 29 axially loaded fiber-reinforced polymer sheet (FS) confined concrete columns and two reference plain concrete columns are introduced. Twenty four column specimens were confined with carbon fiber sheet (CFS) and five column specimens were hybrid confined with both CFS and glass fiber sheet (GFS). The influence of aspect ratio, FS material, initial axial force ratio, and FS confine-ment degree on the strength and deformation of columns were studied. Based on the experimental results, the equations of complete stress-strain curve of CFS confined concrete are proposed. These equations are suitable for the nonlinear analysis of square and rectangular section columns. Suggestions of applying FS to confine concrete columns are presented. |
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| Keywords: | fiber-reinforced polymer sheet (FS) confined concrete column axial compressive force strength and deformation equation of complete stress-strain curve |
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