Compressive behavior of hybrid double-skin tubular columns with a large rupture strain FRP tube

Tao Yu; Shishun Zhang; Le Huang; Chunwa Chan

doi:10.1016/j.compstruct.2017.03.013

Compressive behavior of hybrid double-skin tubular columns with a large rupture strain FRP tube

Tao Yu, Shishun Zhang, Le Huang, Chunwa Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

77 Citations (Scopus)

Abstract

A hybrid fiber-reinforced polymer (FRP)-concrete-steel double-skin tubular column (DSTC) consists of an outer FRP tube and an inner steel tube, with the space in between filled with concrete. This paper presents results from the first ever experimental study on hybrid DSTCs with a large rupture strain (LRS) FRP tube, namely, polyethylene terephthalate (PET) FRP tube. The experimental program involved the testing of 12 hybrid DSTC specimens with or without additional concrete inside the inner steel tube. The test results confirmed the ample ductility of hybrid DSTCs with a PET-FRP tube despite the severe local buckling of the inner steel tube at large axial deformations. The test results also suggested that the diameter-to-thickness ratio of the inner steel tube is a more critical parameter in such DSTCs than in DSTCs with a glass, carbon or aramid FRP outer tube.

Original language	English
Pages (from-to)	10-18
Number of pages	9
Journal	Composite Structures
Volume	171
DOIs	https://doi.org/10.1016/j.compstruct.2017.03.013
Publication status	Published - 1 Jul 2017
Externally published	Yes

Keywords

Buckling
Concrete
Confinement
FRP
Large rupture strain
Steel
Tubular column

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

More information

10.1016/j.compstruct.2017.03.013

Cite this

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title = "Compressive behavior of hybrid double-skin tubular columns with a large rupture strain FRP tube",

abstract = "A hybrid fiber-reinforced polymer (FRP)-concrete-steel double-skin tubular column (DSTC) consists of an outer FRP tube and an inner steel tube, with the space in between filled with concrete. This paper presents results from the first ever experimental study on hybrid DSTCs with a large rupture strain (LRS) FRP tube, namely, polyethylene terephthalate (PET) FRP tube. The experimental program involved the testing of 12 hybrid DSTC specimens with or without additional concrete inside the inner steel tube. The test results confirmed the ample ductility of hybrid DSTCs with a PET-FRP tube despite the severe local buckling of the inner steel tube at large axial deformations. The test results also suggested that the diameter-to-thickness ratio of the inner steel tube is a more critical parameter in such DSTCs than in DSTCs with a glass, carbon or aramid FRP outer tube.",

keywords = "Buckling, Concrete, Confinement, FRP, Large rupture strain, Steel, Tubular column",

author = "Tao Yu and Shishun Zhang and Le Huang and Chunwa Chan",

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AU - Yu, Tao

AU - Zhang, Shishun

AU - Huang, Le

AU - Chan, Chunwa

PY - 2017/7/1

Y1 - 2017/7/1

N2 - A hybrid fiber-reinforced polymer (FRP)-concrete-steel double-skin tubular column (DSTC) consists of an outer FRP tube and an inner steel tube, with the space in between filled with concrete. This paper presents results from the first ever experimental study on hybrid DSTCs with a large rupture strain (LRS) FRP tube, namely, polyethylene terephthalate (PET) FRP tube. The experimental program involved the testing of 12 hybrid DSTC specimens with or without additional concrete inside the inner steel tube. The test results confirmed the ample ductility of hybrid DSTCs with a PET-FRP tube despite the severe local buckling of the inner steel tube at large axial deformations. The test results also suggested that the diameter-to-thickness ratio of the inner steel tube is a more critical parameter in such DSTCs than in DSTCs with a glass, carbon or aramid FRP outer tube.

AB - A hybrid fiber-reinforced polymer (FRP)-concrete-steel double-skin tubular column (DSTC) consists of an outer FRP tube and an inner steel tube, with the space in between filled with concrete. This paper presents results from the first ever experimental study on hybrid DSTCs with a large rupture strain (LRS) FRP tube, namely, polyethylene terephthalate (PET) FRP tube. The experimental program involved the testing of 12 hybrid DSTC specimens with or without additional concrete inside the inner steel tube. The test results confirmed the ample ductility of hybrid DSTCs with a PET-FRP tube despite the severe local buckling of the inner steel tube at large axial deformations. The test results also suggested that the diameter-to-thickness ratio of the inner steel tube is a more critical parameter in such DSTCs than in DSTCs with a glass, carbon or aramid FRP outer tube.

KW - Buckling

KW - Concrete

KW - Confinement

KW - FRP

KW - Large rupture strain

KW - Steel

KW - Tubular column

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DO - 10.1016/j.compstruct.2017.03.013

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SP - 10

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JO - Composite Structures

JF - Composite Structures

ER -

Compressive behavior of hybrid double-skin tubular columns with a large rupture strain FRP tube

Abstract

Keywords

ASJC Scopus subject areas

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