Compressive Behavior of Large-Scale Hybrid FRP-Concrete-Steel Double-Skin Tubular Columns

Abstract:

Hybrid FRP-concrete-steel double-skin tubular columns (DSTCs) are a new form of hybrid structural members. A hybrid DTSC consists of an inner steel tube, an outer FRP tube and a concrete infill between them. Hybrid DSTCs possess many important advantages over conventional structural members, including their excellent corrosion resistance as well as excellent ductility and seismic resistance. A large amount of research has been conducted on hybrid DSTCs, but the existing experimental studies have been limited to the testing of small-scale columns. This paper presents preliminary results from the first series of large-scale axial compression tests on hybrid DSTCs, which forms part of a larger experimental study currently under way at The Hong Kong Polytechnic University. These test results confirm the excellent axial compressive response of hybrid DSTCs as initially expected.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 1138-1144
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.1138
• Online since: May 2011
• Authors: Pan Xie, T Yu, Y.L. Wong, J.G. Teng
• Keywords: Axial Compression Test, Concrete, Fiber Reinforced Plastic (FRP), Hybrid Columns, Large-Scale Tests, Steel, Tubular Columns

References

[1] J.G. Teng, T. Yu and Y.L. Wong: Behaviour of hybrid FRP-concrete-steel double-skin tubular columns. Proceedings, 2nd International Conference on FRP Composites in Civil Engineering. Adelaide, Australia, (2004), pp.811-818

DOI: 10.1201/9780203970850.ch91

[2] J.G. Teng, T. Yu, Y.L. Wong and S.L. Dong: Hybrid FRP-concrete-steel tubular columns: Concept and behavior. Construction and Building Materials. Vol. 21-4 (2007), pp.846-854.

DOI: 10.1016/j.conbuildmat.2006.06.017

[3] Y.L. Wong, T. Yu, J.G. Teng and S.L. Dong: Behavior of FRP-confined concrete in annular section columns. Composites Part B-Engineering. Vol. 39-3 (2008), pp.451-466.

DOI: 10.1016/j.compositesb.2007.04.001

[4] T. Yu, Y.L. Wong, J.G. Teng and S.L. Dong: Flexural behavior of hybrid FRP-concrete-steel double-skin tubular members. Journal of Composites for Construction. Vol. 10-5 (2006), pp.443-452.

DOI: 10.1061/(asce)1090-0268(2006)10:5(443)

[5] T. Yu, Y.L. Wong and J.G. Teng: Behavior of hybrid FRP-concrete-steel double-skin tubular columns subjected to eccentric compression. Advances in Structural Engineering, Vol. 13-5 (2010), pp.961-974.

DOI: 10.1260/1369-4332.13.5.961

[6] T. Yu, J.G. Teng and Y.L. Wong: Stress-strain behavior of concrete in hybrid double-skin tubular columns. Journal of Structural Engineering, ASCE. Vol. 136-4 (2010), pp.379-389.

DOI: 10.1061/(asce)st.1943-541x.0000121

[7] T. Yu, J.G. Teng, Y.L. Wong, and S.L. Dong: Finite element modeling of confined concrete-I: Drucker-Prager type plasticity model. Engineering Structures. Vol. 32 (2010), pp.665-679.

DOI: 10.1016/j.engstruct.2009.11.014

[8] T. Yu, J.G. Teng, Y.L. Wong and S.L. Dong: Finite element modeling of confined concrete-II: Plastic-damage model. Engineering Structures. Vol. 32 (2010), pp.680-691.

DOI: 10.1016/j.engstruct.2009.11.013

[9] Y. Xu and Z. Tao: Key issues of dynamic behavior of hybrid FRP-concrete-steel double skin tubular columns. Journal of Fuzhou University (Natural Science), Vol. 33 (2005), pp.309-315. (in Chinese).

[10] X.W. Yu: Behavior of hybrid CFRP-concrete-steel double-skin tubular columns under axial compression, MSc Thesis (2006), Harbin Institute of Technology. (in Chinese)

[11] M.X. Liu: Studies on key behavior of FRP-concrete-steel double skin tubular columns, PhD Thesis (2007), Tsinghua University. (in Chinese)

[12] L.H. Han, Z. Tao, F.Y. Liao and Y. Xu: Tests on cyclic performance of FRP-concrete-steel double-skin tubular columns. Thin-Walled Structures. Vol. 48-6 (2010), pp.430-439.

DOI: 10.1016/j.tws.2010.01.007

[13] BS 18. Tensile testing of metals (including aerospace materials), British Standards Institution, UK 1987.