Analytical buckling model for slender FRP-reinforced concrete columns

被引：53

作者：

Hales, Thomas A. ^{[1
]}

Pantelides, Chris P. ^{[2
]}

Reaveley, Lawrence D.

机构：

[1] Utah Dept Transportat, Ogden, UT 84404 USA

[2] Univ Utah, Dept Civil & Env Engn, Salt Lake City, UT 84112 USA

来源：

COMPOSITE STRUCTURES | 2017年 / 176卷

关键词：

Axial load; Buckling model; Concrete column; Fiber reinforced polymer; Slenderness ratio; Spiral;

D O I：

10.1016/j.compstruct.2017.05.034

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Research is limited with respect to load-deflection behavior of slender concrete columns internally reinforced with Fiber Reinforced Polymer (FRP) spirals and longitudinal bars. An analytical buckling model based on numerical integration is presented to predict the load versus deflection performance of slender concrete columns reinforced with FRP spirals and longitudinal bars, subjected to eccentric loads. The model can be used to predict the behavior of slender concrete columns with various configurations including FRP and/or steel reinforcement, single or double spiral, and number of longitudinal bars. The longitudinal bars considered include steel, FRP, or hybrid reinforcement consisting of steel and FRP bars. The model is found to predict the experimental performance of slender concrete columns reinforced with Glass FRP longitudinal bars and spirals with satisfactory accuracy. The model is used to create interaction diagrams for FRP spiral-confined circular concrete columns with various slenderness ratios, reinforced with steel, FRP or hybrid reinforcement. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：33 / 42

页数：10

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