Design recommendations for bond between GFRP/steel wire composite rebars and concrete

Hao, Qingduo; Wang, Yanlei; Ou, Jinping

doi:10.1016/j.engstruct.2008.04.037

Cited by 17 publications

(8 citation statements)

References 10 publications

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“…Harajli and Abouniaj [ 9 ] have stated that these formulations are too conservative and not realistic. Other researchers’ studies also support this conclusion about the bond requirements of ACI 440 [ 10 ].…”

Section: Introductionsupporting

confidence: 54%

Monotonic and Cyclic Bond Behavior of Deformed CFRP Bars in High Strength Concrete

et al. 2016

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Abstract:Composite reinforcing bars (rebars) that are used in concrete members with high performance (strength and durability) properties could have beneficial effects on the behavior of these members. This is especially vital when a building is constructed in an aggressive environment, for instance a corrosive environment. Although tension capacity/weight (or volume) ratios in composite rebars (carbon fiber reinforced polymer (CFRP), glass fiber reinforced polymer (GFRP), etc.) are very high when compared to steel rebars, major weaknesses in concrete members reinforced with these composite rebars may be the potential consequences of relatively poor bonding capacity. This may even be more crucial when the member is subjected to cyclic loading. Although monotonic bond tests are available in the literature, only limited experimental studies exist on bond characteristics under cyclic loading conditions. In order to fill this gap and propose preliminary design recommendations, 10 specimens of 10-mm-diameter ribbed CFRP rebars embedded in specially designed high strength concrete (f ' c = 70 MPa) blocks were subjected to monotonic and cyclic pullout tests. The experimental results showed that cyclically loaded CFRP rebars had less bond strength than those companion specimens loaded monotonically.

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Section: Introductionsupporting

confidence: 54%

Monotonic and Cyclic Bond Behavior of Deformed CFRP Bars in High Strength Concrete

et al. 2016

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“…On the other hand, composite materials present some disadvantages: orthotropy [7], brittleness in bolted connections [8], and low elastic modulus if compared to steel (up to ten times lower) [3,[9][10][11]. In particular, this latter condition impedes the use of GFRP pultruded profiles in structural applications, especially when the concentrated bearing load is applied [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Mechanical performances of GFRP-steel specimens bonded with different epoxy adhesives, before and after the aging treatments

Giampaoli

Terlizzi

Rossi

et al. 2017

Composite Structures

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“…The curve of the Continuous curve model is smooth, and the physical concept is clear 32 . The Glass FRP (GFRP)/steel wire model 33 describes the entire FRP bar/steel‐concrete bond‐slip process and is shown in Figure 14. The entire bond‐slip process is well described.…”

Section: Discussionmentioning

confidence: 99%

Bond behavior of BFRP bars with basalt‐fiber reinforced cement‐based composite materials

Wang

Liu

Zhang

et al. 2020

Structural Concrete

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This study investigated the bond behavior of BFRP bars with basalt‐fiber cement‐based composite materials (BFRCC). The bond behavior was evaluated in terms of the bar type, bar diameter, matrix type, fiber volume, and spiral stirrup presence. The interface failures between the bars and matrix were observed after the experiment. The influence factors of the test groups on the bond‐slip mechanism were analyzed, and an analytical model of the bond‐slip mechanism was established by data fitting. The results show that the interface failures between the bars and the BFRCC matrix were divided into pull‐out failure and splitting failure, the bond‐slip curve had a residual stage and demonstrated periodic decay. Although the bars' diameters had little effect on the bond strength and average slip, the fiber volume strongly influenced it, and the spiral stirrup could effectively prevent splitting failure. A high‐precision bond‐slip model between the BFRP bars and basalt‐fiber cement‐based composite materials (BFRCC) was established.

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Design recommendations for bond between GFRP/steel wire composite rebars and concrete

Cited by 17 publications

References 10 publications

Monotonic and Cyclic Bond Behavior of Deformed CFRP Bars in High Strength Concrete

Monotonic and Cyclic Bond Behavior of Deformed CFRP Bars in High Strength Concrete

Mechanical performances of GFRP-steel specimens bonded with different epoxy adhesives, before and after the aging treatments

Bond behavior of BFRP bars with basalt‐fiber reinforced cement‐based composite materials

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