Axial compressive behavior of concrete-filled FRP-steel wire reinforced thermoplastics pipe hybrid columns

Guo, Yong; Xiao, Shu-Hua; Shi, Shu-Wei; Zeng, Jun-Jie; Wang, Wei Qiang; Zhao, Hongchao

doi:10.1016/j.compstruct.2020.112237

Cited by 38 publications

(6 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it is generally not an economic option to construct pure FRP structures in practical applications. To this end, the combined usage of FRP composites and traditional construction materials (including steel and concrete) has attracted more and more attention in the research community [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], with the aim to establish cost-effective and novel forms of structures with excellent structural performance.…”

Section: Introductionmentioning

confidence: 99%

A State-of-the-Art Review of FRP-Confined Steel-Reinforced Concrete (FCSRC) Structural Members

Zeng

2022

Polymers

Self Cite

View full text Add to dashboard Cite

Fiber-reinforced polymer (FRP) composites have been widely used for strengthening or constructing structures due to their excellent corrosion resistance and high tensile strength. An emerging hybrid structural member form with FRP composites—which consist of a steel section as internal reinforcement, an external FRP wrap/tube, and concrete filled between them (referred to as FRP-confined steel-reinforced concrete systems (FCSRC) systems)—has attracted increasing research interest. To date, the concept has been adopted to strengthen/repair steel structures or used as new hybrid structural members (e.g., hybrid columns or beams, including buckling restrained braces (BRBs)). The FRP confinement and composite action between the three components in FCSRCs result in the excellent performance of the hybrid member. This paper presents a state-of-the-art review of FCSRCs for structural applications. The gaps in knowledge and future research opportunities on FCSRC structural members are also identified.

show abstract

Section: Introductionmentioning

confidence: 99%

A State-of-the-Art Review of FRP-Confined Steel-Reinforced Concrete (FCSRC) Structural Members

Zeng

2022

Polymers

Self Cite

View full text Add to dashboard Cite

show abstract

“…PVC materials exhibit some advantages such a low creep deformation, low diffusion for humidity, high electrical insulation, large ultimate strain, excellent corrosion resistance and durability, smooth surface, good mechanical stability, great consistency with other materials such as water, acids, and concrete, and easy machining, gluing, and cutting for fabrication versatility [58][59][60]. There-fore, FRP-PVC composite members offer both corrosion resistance of PVC and high strength capacity of FRP and they are promising materials for the application in special environments [5,[61][62][63].…”

Section: Abstract a R T I C L E I N F O R M A T I O Nmentioning

confidence: 99%

Concrete filled FRP–PVC tubular columns used in the construction sector: A review

Bazli

Rahmani

et al. 2020

jcc

View full text Add to dashboard Cite

“…However, because FRPs still have the disadvantages of brittle failure and a high cost, which greatly limit its application, the application of FRP-confined concrete structure is still limited. In recent years, many scholars have proposed the concept of "composite-confined concrete", that is, FRPs and steel working together to restrain concrete [12][13][14][15][16][17][18][19][20][21][22][23], taking full advantage of the tensile properties of the FRPs and the excellent properties of steel. FRP stirrup-confined concrete columns use FRPs and stirrups as external restraint materials and synthesise the characteristics of both FRP restraints and stirrup restraints.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Cross-Sectional Shape and Corner Radius on the Compressive Behaviour of Concrete Columns Confined by FRP and Stirrups

Wei

Wang

et al. 2022

Polymers

View full text Add to dashboard Cite

Axial compression tests were carried out on 72 FRP (fiber reinforced polymer)–stirrup composite−confined concrete columns. Stirrups ensure the residual bearing capacity and ductility after the FRP fractures. To reduce the effect of stress concentration at the corners of the confined square−section concrete columns and improve the restraint effect, an FRP–stirrup composite−confined concrete structure with rounded corners is proposed. Different corner radii of the stirrup and outer FRP were designed, and the corner radius of the stirrup was adjusted accurately to meet the designed corner radius of the outer FRP. The cross−section of the specimens gradually changed from square to circular as the corner radius increased. The influence of the cross−sectional shape and corner radius on the compressive behaviour of FRP–stirrup composite−confined concrete was analysed. An increase in the corner radius can cause the strain distribution of the FRP to be more uniform and strengthen the restraint effect. The larger the corner radius of the specimen, the better the improvement of mechanical properties. The strength of the circular section specimen was greatly improved. In addition, the test parameters also included the FRP layers, FRP types and stirrup spacing. With the same corner radius, increasing the number of FRP layers or densifying the stirrup spacing effectively improved the mechanical properties of the specimens. Finally, a database of FRP–stirrup composite−confined concrete column test results with different corner radii was established. The general calculation models were proposed, respectively, for the peak points, ultimate points and stress–strain models that are applicable to FRP−, stirrup− and FRP–stirrup−confined concrete columns with different cross−sectional shapes under axial compression.

show abstract

Axial compressive behavior of concrete-filled FRP-steel wire reinforced thermoplastics pipe hybrid columns

Cited by 38 publications

References 43 publications

A State-of-the-Art Review of FRP-Confined Steel-Reinforced Concrete (FCSRC) Structural Members

A State-of-the-Art Review of FRP-Confined Steel-Reinforced Concrete (FCSRC) Structural Members

Concrete filled FRP–PVC tubular columns used in the construction sector: A review

Influence of the Cross-Sectional Shape and Corner Radius on the Compressive Behaviour of Concrete Columns Confined by FRP and Stirrups

Contact Info

Product

Resources

About