Strength and Deformation of Axially Loaded Fiber-Reinforced Polymer Sheet Confined Concrete Columns

Strength and Deformation of Axially Loaded Fiber-Reinforced Polymer Sheet Confined Concrete

Columns

李静;钱稼茹;蒋剑彪

【期刊名称】《清华大学学报（英文版）》 【年(卷),期】2004(009)002

【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.

【总页数】8页(130-137)

【关键词】fiber-reinforced polymer sheet (FS);confined concrete column;axial compressive force;strength and deformation;equation of complete stress-strain curve