Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27673
Title: Hybrid FRP concrete steel double-skin tubular columns : an overview of existing research
Authors: Yu, T
Teng, JG 
Wong, YL
Dong, SL
Keywords: Confinement
Fiber-reinforced polymer (FRP)
Hybrid columns
Steel
Tubular columns
Issue Date: 2008
Source: American concrete institute, ACI special publication, 2008, no. 257 SP, p. 177-193 How to cite?
Journal: American Concrete Institute, ACI Special Publication 
Abstract: Hybrid FRP concrete steel double-skin tubular columns (DSTCs) are a new form of hybrid columns recently proposed by the second author. The column consists of an outertube made of fiber-reinforced polymer (FRP) and an inner tube made of steel, with the space between filled with concrete. In this new form of hybrid columns, the three constituent materials are optimally combined to achieve several advantages not available with existing columns. This paper provides a summary of existing research on this new form of structural members, clarifying its structural behavior under axial compression, bending, and combined axial compression and bending. Test results of hybrid DSTCs are presented that demonstrate that they are very ductile under different loading conditions. A finite element (FE) model for its axial compressive behavior is also presented, which was employed in a parametric study leading to a simple stress-strain model for the confined concrete in hybrid DSTCs described in the paper. In addition, a conventional section analysis based on the plane section assumption and the fiber element approach is presented for predicting the behavior of hybrid DSTCs subjected to bending and eccentric compression. A variable confinement model that accounts for the effect of load eccentricity is adopted in this section analysis for the confined concrete, and is recommended for design use.
Description: FRP Stay-in-Place Forms for Concrete Structures Sessions - ACI Spring Convention 2008, Los Angeles, CA, 31-31 March 2008
URI: http://hdl.handle.net/10397/27673
ISBN: 9781605607252
ISSN: 0193-2527
Appears in Collections:Conference Paper

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