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Hybrid FRP-concrete-steel double-skin tubular columns: Cyclic axial compression tests

Conference Paper


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Abstract


  • Hybrid FRP-concrete-steel double-skin tubular columns (hybrid DSTCs) are a new form of

    hybrid columns recently developed at The Hong Kong Polytechnic University. A hybrid

    DSTC consists of an inner steel tube, an outer FRP tube and a concrete infill between the two

    tubes. Hybrid DSTCs possess many important advantages over existing column forms,

    including their excellent corrosion resistance and excellent seismic resistance. While a large

    amount of research has been conducted on the monotonic behavior of this novel form of

    columns, only a limited amount of work has been conducted on their behavior under cyclic

    loading. This paper presents the first experimental study on hybrid DSTCs under cyclic axial

    compression, with a particular emphasis on the effect of different cyclic loading schemes and

    on the behavior of the confined concrete. Hybrid DSTCs are shown by these tests to be very

    ductile under cyclic axial compression, with an envelope axial load-strain curve being almost

    the same as the axial load-strain curve of a corresponding DSTC under monotonic

    compression. It is also shown that repeated unloading/reloading cycles have a cumulative

    effect on the permanent strain and the stress deterioration of the confined concrete in hybrid

    DSTCs.

UOW Authors


  •   Yu, Tao
  •   Cao, Y (external author)
  •   Zhang, Bing (external author)
  •   Teng, Jin Guang. (external author)

Publication Date


  • 2012

Citation


  • Yu, T., Cao, Y., Zhang, B. & Teng, J. G. (2012). Hybrid FRP-concrete-steel double-skin tubular columns: Cyclic axial compression tests. 6th International Conference on FRP Composites in Civil Engineering (pp. 1-8).

Scopus Eid


  • 2-s2.0-84924370396

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1354&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/349

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 8

Abstract


  • Hybrid FRP-concrete-steel double-skin tubular columns (hybrid DSTCs) are a new form of

    hybrid columns recently developed at The Hong Kong Polytechnic University. A hybrid

    DSTC consists of an inner steel tube, an outer FRP tube and a concrete infill between the two

    tubes. Hybrid DSTCs possess many important advantages over existing column forms,

    including their excellent corrosion resistance and excellent seismic resistance. While a large

    amount of research has been conducted on the monotonic behavior of this novel form of

    columns, only a limited amount of work has been conducted on their behavior under cyclic

    loading. This paper presents the first experimental study on hybrid DSTCs under cyclic axial

    compression, with a particular emphasis on the effect of different cyclic loading schemes and

    on the behavior of the confined concrete. Hybrid DSTCs are shown by these tests to be very

    ductile under cyclic axial compression, with an envelope axial load-strain curve being almost

    the same as the axial load-strain curve of a corresponding DSTC under monotonic

    compression. It is also shown that repeated unloading/reloading cycles have a cumulative

    effect on the permanent strain and the stress deterioration of the confined concrete in hybrid

    DSTCs.

UOW Authors


  •   Yu, Tao
  •   Cao, Y (external author)
  •   Zhang, Bing (external author)
  •   Teng, Jin Guang. (external author)

Publication Date


  • 2012

Citation


  • Yu, T., Cao, Y., Zhang, B. & Teng, J. G. (2012). Hybrid FRP-concrete-steel double-skin tubular columns: Cyclic axial compression tests. 6th International Conference on FRP Composites in Civil Engineering (pp. 1-8).

Scopus Eid


  • 2-s2.0-84924370396

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1354&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/349

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 8