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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 438-439Influence of Inner Steel Tube Properties on...

Influence of Inner Steel Tube Properties on Compressive Behavior of FRP-HSC-Steel Double-Skin Tubular Columns

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Abstract:

This paper reports on part of an ongoing experimental program at The University of Adelaide on FRP-concrete-steel composite columns. A total of eight high-strength concrete double-skin tubular columns (DSTCs) were tested under axial compression. The column parameters examined included the diameter, thickness, and shape of inner steel tube. The results of the experimental study show that increasing the inner steel tube diameter leads to an increase in the ultimate axial stress and strain of concrete in DSTCs. The results also show that increasing inner steel tube thickness leads to an increase in the ultimate axial stress and strain of DSTCs. Furthermore, it is observed that concrete inside DSTCs with square inner steel tubes is not confined as effectively as concrete inside DSTCs with circular inner steel tubes.

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Periodical:

Applied Mechanics and Materials (Volumes 438-439)

Pages:

701-705

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.701

Citation:

Cite this paper

Online since:

October 2013

Authors:

Butje Alfonsius Louk Fanggi, Togay Ozbakkaloglu

Keywords:

Column, Concrete, Confinement, DSTCs, Fiber Reinforced Polymer (FRP), FRP Tubes, High-Strength Concrete (HSC), Steel Tubes

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