Compressive behavior of hybrid double-skin tubular columns with a rib-stiffened steel inner tube

Peng, Kai-Di; Yu, Tao; Hadi, Muhammad N.S.; Huang, Le

doi:10.1016/j.compstruct.2018.07.083

Cited by 51 publications

(14 citation statements)

References 20 publications

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“…Yu et al (2017) confirmed that the ductility of hybrid DSTCs could be significantly enhanced if the large-rupture-strain FRP tube was used. Peng et al (2018) explored the use of steel tubes with ribs for hybrid DSTCs, and the test results confirmed that the local buckling of the steel tube was effective delayed due to the existence of ribs, leading to a better ductility for hybrid DSTCs.…”

Section: Introductionmentioning

confidence: 88%

“…Since the invention of hybrid DSTCs (Teng et al, 2004, 2007), extensive experimental studies have been undertaken on their monotonic compressive behavior (e.g. Fanggi and Ozbakkaloglu, 2013; Ozbakkaloglu and Akin, 2012; Ozbakkaloglu and Fanggi, 2013; Peng et al, 2018; Yu, 2007; Yu et al, 2010, 2012, 2017; Zeng et al, 2018; Zhang et al, 2011, 2012, 2015, 2017; Zhao et al 2016; Zhou et al, 2017). The first-ever study of hybrid DSTCs was conducted by Teng et al (2004, 2007), in which the rationale for hybrid DSTCs and their expected advantages were explained.…”

Section: Introductionmentioning

confidence: 99%

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Effect of fiber angles on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns under monotonic axial compression

Zhang

Zhao

Huang

et al. 2020

Advances in Structural Engineering

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Hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns are a novel form of hollow columns that combine two traditional construction materials (i.e. concrete and steel) with fiber-reinforced polymer composites. Hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns consist of an inner tube made of steel, an outer tube made of fiber-reinforced polymer, and a concrete layer between the two tubes. Existing studies, however, are focused on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns with fibers of the fiber-reinforced polymer tube oriented in the hoop direction or close to the hoop direction. In order to investigate the effect of fiber angles (i.e. the fiber angle between the fiber orientation and the longitudinal axis of the fiber-reinforced polymer tube), monotonic axial compression tests were conducted on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns with an fiber-reinforced polymer tube of ±45°, ±60°, or ±80° fiber angles. There were two types of steel tubes adopted for these hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns. The fiber-reinforced polymer tube thickness was also investigated as an important parameter. Experimental results showed that the confinement effect of the fiber-reinforced polymer tube increased with the increase of the absolute value of fiber angles, whereas the ultimate axial strain of hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns decreased with the increase of the absolute value of fiber angles. An existing stress–strain model, which was developed on the basis of hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns with an fiber-reinforced polymer tube of ±90° fiber angles, is verified using the test results of this study. For the compressive strength of the confined concrete in hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns, the existing model provides conservative predictions for specimens with a ±80° fiber-reinforced polymer tube, overestimated predictions for specimens with a ±60° fiber-reinforced polymer tube, and close predictions for specimens with a ±45° fiber-reinforced polymer tube.

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Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Effect of fiber angles on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns under monotonic axial compression

Zhang

Zhao

Huang

et al. 2020

Advances in Structural Engineering

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“…For DSTA bridges, the bond between the steel tube and the concrete is of great importance to ensure the composite action between the two. The steel tube-to-concrete bond may be improved by shear connectors which can also serve as the stiffeners to the steel tube to enhance its buckling capacity (Huang et al, 2020; Peng et al, 2018). The connectors may also enhance the confinement to the concrete and play a role in the connections between different components/members if designed properly.…”

Section: Summary and Research Needsmentioning

confidence: 99%

Innovating arch structures with fiber-reinforced polymer composites: A review

Xia

Tao

2023

Advances in Structural Engineering

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Fiber-reinforced polymer (FRP) composites are a class of advanced non-metallic materials featuring advantages of high strength, light weight and excellent corrosion resistance. These advantages, in conjunction with the various methods available for making curved FRP members, create a wide range of possibilities for innovating arch structures with FRP composites. However, this subject has received inadequate research attention despite the exciting prospects demonstrated by pioneer studies. This paper provides a review on this subject with the aim to build a holistic picture and engage wider research participation. The paper begins with an overview of four feasible manufacturing/forming methods (vacuum infusion, filament winding, pultrusion and active bending), with an emphasis on their capability of creating curved FRP members and potential applications in arch structures. A review is next made on previous arch projects and relevant novel concepts, which are classified into two categories (all-FRP arches and FRP-incorporating hybrid arches) with distinct functionality and targeted areas of application. On the basis of this review, directions for future development of each of the two categories are highlighted, with a number of challenges and potential solutions discussed.

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“…Wang et al [26] tested hybrid DSTCs under lateral impact loading using a drop hammer testing facility and confirmed the excellent energy dissipation ability of hybrid DSTCs. Some variations of hybrid DSTCs were also investigated experimentally, including (1) use of light-weight concrete [28]; (2) use of recycled aggregate concrete [29]; (3) use of ribbed steel tubes [30]; (4) use of high-strength steel tubes [31]; (5) use of large-rupture-strain FRP tubes [32].…”

Section: Introductionmentioning

confidence: 99%

Elliptical FRP-Concrete-Steel Double-Skin Tubular Columns under Monotonic Axial Compression

Zhang

Feng

Wang

et al. 2020

Advances in Polymer Technology

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Hybrid FRP-concrete-steel double-skin tubular columns (hybrid DSTCs) are a novel form of hollow columns consisting of an outer FRP tube, an inner steel tube, and an annular layer of concrete between the two tubes. Due to the effective confinement of the two tubes, the concrete in hybrid DSTCs is well confined, leading to excellent ductility and strength enhancement. Hybrid DSTCs also have excellent corrosion resistence due to the effective protection of the outer FRP tube. However, existing studies mainly focused on hybrid DSTCs with a circular cross-section. When subjecting to different loads in the two horizontal directions, elliptical columns are preferred as they can provide different bending stiffness and moment capacity around two axes of symmetry without significantly reducing the confining effect of the FRP tube. This paper extends the existing work on circular DSTCs to elliptical DSTCs with a particular focus on four issues: the effect of elliptical aspect ratio (i.e., the ratio of the major axis to the minor axis of the outer elliptical cross-section), the effect of the FRP tube thickness, the effect of void area ratio (i.e., the ratio of the area of concrete void to the area of the outer elliptical section), and the effect of the cross-section of the inner steel tube (i.e., both rectangular and elliptical steel tubes were used). Experimental results show that, the averaged peak stress of the confined concrete in elliptical DSTCs increases with the increase in the elliptical aspect ratio, whereas the elliptical aspect ratio has no obvious effect on the ultimate axial strain; the cross-section shape of the inner steel tube has significant effect on the axial stress-strain behavior of the confined concrete in elliptical DSTCs; elliptical DSTCs with an elliptical steel tube exhibit much better ductility and strength enhancement than those specimens with a rectangular steel tube. A simple stress-strain model of confined concrete was proposed for elliptical DSTCs to account for the effects of the elliptical aspect ratio, the inner void, and the shape of the inner steel tube, which can provide reasonably accurate but conservative predictions.

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Compressive behavior of hybrid double-skin tubular columns with a rib-stiffened steel inner tube

Cited by 51 publications

References 20 publications

Effect of fiber angles on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns under monotonic axial compression

Effect of fiber angles on hybrid fiber-reinforced polymer–concrete–steel double-skin tubular columns under monotonic axial compression

Innovating arch structures with fiber-reinforced polymer composites: A review

Elliptical FRP-Concrete-Steel Double-Skin Tubular Columns under Monotonic Axial Compression

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