Impacts of configurations on the strength of FRP anchors

Sun, Wei; Liu, Haifeng; Wang, Yajun; He, Tao

doi:10.1016/j.compstruct.2018.04.020

Cited by 33 publications

(19 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was also found that this anchorage system could make fuller use of EB FRP sheet than conventional spike anchors did [21].…”

Section: Introductionmentioning

confidence: 92%

“…) [21]. The equation can be expressed as: It should be noted that those equations provide with valuable tools to determine the strength of conventional spike anchors, which could be greatly improved by using the proposed anchorage system consisting of FRP anchors and patches.…”

Section: Current Design Recommendations On Spike Anchorsmentioning

confidence: 99%

“…1 (c)) is also expected to be properly adjusted so that the entire width of EB sheets can be fully covered by the fanned out anchor [16]. Recently, a FRP anchorage system consisting of a spike anchor and two FRP patches have been developed to improve the reliability of conventional FRP spike anchors [5,16,20,21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An effective improvement for enhancing the strength and feasibility of FRP spike anchors

Sun

Liu

Zhang

2020

Composite Structures

Self Cite

View full text Add to dashboard Cite

Spike anchors are promising remedies to prevent the debonding failure of FRP sheets. The performance of anchored FRP sheets largely depends on critical parameters such as the extending bond length of FRP sheet over the embedded spike and bend radius, greatly limiting their efficiency and feasibility in field. Moreover, their long-term performance dealing with possible bond loss is still unknown. Recently, an anchorage system consisting of a spike anchor and two patches has been developed. This anchorage system was expected to have several advantages over conventional spike anchors, which were rarely explored but are presented in this paper. A total of 21 experiments have been conducted to demonstrate their merits in terms of higher anchor strengths and minimizing the impacts of the extending bond length over the embedded spike, bend radius and FRP-concrete bond. Experimental results also suggest a great remedy to further improve the anchor efficiency by reducing the fanning angle. Thus, the proposed system could be considered as an efficient and feasible anchorage for FRP sheets.

show abstract

“…It was also found that this anchorage system could make fuller use of EB FRP sheet than conventional spike anchors did [21].…”

Section: Introductionmentioning

confidence: 92%

Section: Current Design Recommendations On Spike Anchorsmentioning

confidence: 99%

See 1 more Smart Citation

An effective improvement for enhancing the strength and feasibility of FRP spike anchors

Sun

Liu

Zhang

2020

Composite Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Over the last few decades, the use of FRP as reinforcement in concrete members has gained interest among the researchers and designers owing to the corrosion resistance, high strength and low-weight characteristics of the materials. (Achintha et al 2018;Achintha M 2009;Lou et al 2016Lou et al , 2017ab;Lou and Karavasilis 2018;Sun et al 2017aSun et al , 2018Sun 2018;Sun et al 2016Sun et al , 2017bSun and Ghannoum 2015). Despite FRPs being more expensive than steel on a unit weight basis, it is anticipated that the innovative use of the material together with its long-term benefits such as low maintenance and high durability may enable FRP reinforcement systems to be a viable alternative to steel reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Novel Ductile FRP System for Concrete Reinforcement: Concept and Experimental Characterization

Sun¹,

Liu

Achintha³

et al. 2019

J. Compos. Constr.

Self Cite

View full text Add to dashboard Cite

This paper presents a novel design concept for fiber reinforced polymer (FRP) composites consisting of three-dimensional (3D) printed cores and FRP helical skins as a means of ensuring adequate ductility, compared to the brittle FRP systems conventionally used for internal reinforcement. The experiment demonstrated that when the FRP skins were loaded in tension, the core-which was 3D printed using acrylonitrile butadiene styrene or polylactic acid-was gradually compressed, thereby leading to plastic deformation. This behavior ensured a nonlinear load response while eliminating the unfavorable brittle failure of the FRPs. The results also indicated that the proposed FRP composite system ensured that no premature debonding/delamination occurred between the skin-skin and skin-core. The results of the parametric experimental study indicated that design parameters such as the FRP amount, core height, core span, core shell thickness, core material, core brace, and core number (i.e., the number of inner cores used for the composite) may be optimized to realize the expected design load capacity and ductility.

show abstract

“…Because of their light-weight, high-strength and non-corrosion properties, Fiber Reinforced Polymer (FRP) composites are remarkable materials to strengthen or reinforce concrete structures [1][2][3][4][5][6][7][8][9]. The successful usage of FRP composites to replace steel reinforcements also suggests an over $8 billion annual savings from repairing the corroded components of U.S. bridges [10,11].…”

Section: Introductionmentioning

confidence: 99%