A new composite column of FRP-steel-FRP clad tube filled with seawater sea-sand coral aggregate concrete: Concept and compressive behavior

Sun, Junzu; Wei, Yimiao; Wang, Zhiyuan; Li, Xinlei

doi:10.1016/j.conbuildmat.2021.124096

Cited by 22 publications

(9 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the ultimate load at failure of FRP, a large drop occurs, and residual stage is seen due to the confinement provided by steel [28,40,55]. Moreover, the effects of type and thickness of FRP on the stress-strain behaviour are more substantial than the thickness of carbon steel tube [40,42,55]. Figure 8 shows the axial stress-strain curves of single-skin multilayered confined specimens from Zhang et al [42] and Sun et al [55].…”

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

“…To paste the sheet on the inner surface of the tube, a cylindrical object with epoxy resin impregnated FRP sheet is then rolled inside the same tube [28,34]. Apart from FRP sheets, filament-wound GFRP tubes have also been paired with carbon steel tubes in one of the studies by sandwiching the carbon steel tubes between two GFRP tubes [55].…”

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

“…The confinement provided by FRP results in the secondary hardening stage. After the ultimate load at failure of FRP, a large drop occurs, and residual stage is seen due to the confinement provided by steel [28,40,55]. Moreover, the effects of type and thickness of FRP on the stress-strain behaviour are more substantial than the thickness of carbon steel tube [40,42,55].…”

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

See 2 more Smart Citations

Review of the Short-Term Properties of Confined Seawater Sea Sand Concrete Columns under Compression

Shrivastava,

Ramli Sulong,

Zahra

et al. 2024

Buildings

View full text Add to dashboard Cite

The environmental concerns raised by the over-exploitation of fresh water and river sand have driven researchers to explore seawater sea sand concrete (SWSSC) as a substitute for conventional concrete in structural columns. With numerous investigations on this in the past, there is a need to systematically classify and comprehensively understand the response of confined SWSSC columns to promote their usage as structural columns. Consequently, the objective of this review is to summarise and analyse the experimental work conducted so far on confined SWSSC under different compressive loadings. Confined SWSSC columns are classified into five confinement schemes based on the cross-section of the specimens: single-skin, single-skin multilayered, single-skin with additional reinforcement, double-skin, and double-tube-confined SWSSC columns. Based on the findings of the reviewed studies, it can be concluded that the compressive strength and the ductility of the SWSSC can be enhanced through confinement, with effectiveness majorly depending on the material and geometrical properties of the confinement providing material. The existing research work on SWSSC confinement lays out a strong base for future investigations in this area, which will eventually facilitate the acceptance of SWSSC as structural columns, especially for coastal and marine infrastructure.

show abstract

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

Section: Single-skin Multilayered Confinement Of Swsscmentioning

confidence: 99%

See 1 more Smart Citation

Review of the Short-Term Properties of Confined Seawater Sea Sand Concrete Columns under Compression

Shrivastava,

Ramli Sulong,

Zahra

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…Steel/polymer/steel layered materials have garnered significant attention in the automotive industry for their ability to reduce vehicle weight while maintaining high strength and good formability. [1][2][3][4][5][6][7] These materials exhibit structural heterogeneity, wherein the surface is strong and the core is weak, due to the combination of a high-strength steel layer and a low-strength polymer layer. Generally, heterostructured materials composed of relatively soft and hard metallic components can achieve enhanced strength and uniform elongation through an additional strengthening at the interface, called hetero-deformation-induced (HDI).…”

Section: Introductionmentioning

confidence: 99%

Non‐Hetero‐Deformation‐Induced Hardening in Steel/Polymer/Steel Layered Sheet: Experiment and Modeling Analyses

Kim,

Gu,

Kim

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

The mechanical properties of the steel/polymer/steel layered material were determined by taking the sum or average of the properties of its constituent components. To understand the reasons behind non‐hetero‐deformation‐induced hardening at the deformed polymer/steel interface, a combined approach of experimental methods and modeling techniques was employed.This article is protected by copyright. All rights reserved.

show abstract

“…Guo et al [28] studied the effect of specimen size on the axial compressive properties of FRP-confined concrete columns. Wang et al [29], Wei et al [30,31], Liu et al [32] and Sun et al [33] conducted the axial compression test research of circular FRP-steel composite-confined concrete on the change in FRP thickness, FRP type and steel tube diameter-thickness ratio. Wei et al [15] designed different FRP layers, FRP types and steel spirals spacing to study the axial compressive properties of circular FRP-steel spirals confined concrete.…”

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

A new composite column of FRP-steel-FRP clad tube filled with seawater sea-sand coral aggregate concrete: Concept and compressive behavior

Cited by 22 publications

References 50 publications

Review of the Short-Term Properties of Confined Seawater Sea Sand Concrete Columns under Compression

Review of the Short-Term Properties of Confined Seawater Sea Sand Concrete Columns under Compression

Non‐Hetero‐Deformation‐Induced Hardening in Steel/Polymer/Steel Layered Sheet: Experiment and Modeling Analyses

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