Flexural behavior of BFRP reinforced seawater sea-sand concrete beams with textile reinforced ECC tension zone cover

Wang, Luchen; Yin, Shiping; Hua, Yuntao

doi:10.1016/j.conbuildmat.2021.122372

Cited by 16 publications

(4 citation statements)

References 30 publications

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“…Second, the ideal elastoplastic model can significantly simplify the calculation and is easier to handle by engineers in the structural design. In addition, a similar simplified stress-strain relationship of ECC is also used by other researchers (Zheng et al, 2016;Ge et al, 2018;Wang et al, 2021), and they obtain reasonable results. The relationship of strain and stress of ECC can be written as Eq.…”

Section: Simplified Uniaxial Tensile and Compressive Stress-strain Re...mentioning

confidence: 92%

“…However, these specifications are not perfectly suitable for ECC members. Recently, studies on the calculation of flexural strength were more mature in the case of RECC beams (Cui et al, 2021;Qiao et al, 2021;Wang et al, 2021). In the case of RECC columns, Li L. Z. et al (2019) study the behavior of reinforced, high-strength ECC columns under eccentric compression experimentally, and an analytical model is proposed for the load-bearing capacity of RECC columns under large eccentric compression.…”

Section: Introductionmentioning

confidence: 99%

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Sectional Analysis of Reinforced Engineered Cementitious Composite Columns Subjected to Combined Lateral Load and Axial Compression

Sun

et al. 2022

Front. Mater.

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The ultra-high tensile ductility of ECC provides an alternative way to enhance the ductility of structural members by using high-ductile matrix material instead of simply increasing reinforcements. However, the application of ECC members is still limited due to the relatively short research time and the lack of design specifications. Being equivalent to eccentric compressive members, a sectional analysis of RECC columns subjected to combined lateral load and axial compression are proposed in this paper. Based on the design theory of load capacity of eccentric compression columns and the unique constitutive model of ECC, the calculation equations for the sectional load capacity of RECC columns are derived. The analytical prediction of the load capacity of RECC column is evaluated in comparison with that of experiments that confirm the capacity of the proposed calculation method to capture the behavior of the RECC column accurately. The strength-interaction diagrams showing the axial force-moment (N-M) interaction curves are then constructed for analysis using the proposed calculation equations. A parametric study is also carried out by using the proposed calculation equations, demonstrating the effects of ultimate tensile strain of ECC, compressive and tensile strength of ECC, yield strength of steel bar, and reinforcement ratio on the N-M interaction curves of RECC columns. The investigations exhibited in this paper are expected to provide insight into the design principles of RECC columns.

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Section: Simplified Uniaxial Tensile and Compressive Stress-strain Re...mentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Sectional Analysis of Reinforced Engineered Cementitious Composite Columns Subjected to Combined Lateral Load and Axial Compression

Sun

et al. 2022

Front. Mater.

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“…They analyzed the pull-out mechanism of steel strand fibers and hook-end fibers through pull-out tests and proposed a predictive model for the interfacial bonding performance of fiber-reinforced materials. These numerical and experimental studies have enhanced our understanding of the lap performance of these specimens [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Lap-Spliced Performance of High-Strength Stainless Steel Wire Mesh in Engineering Cementitious Composites

Zou

Zhang

et al. 2023

Materials

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To investigate the mechanical properties of high-strength stainless steel wire mesh (HSSSWM) in Engineering Cementitious Composites (ECCs) and determine a reasonable lap length, a total of 39 specimens in 13 sets were designed and fabricated by considering the diameter of the steel strand, spacing of the transverse steel strand, and lap length. The lap-spliced performance of the specimens was tested through a pull-out test. The results revealed two failure modes in the lap connection of steel wire mesh in ECCs: pull-out failure and rupture failure. The spacing of the transverse steel strand had little effect on the ultimate pull-out force, but it restricted the slip of the longitudinal steel strand. A positive correlation was found between the spacing of the transverse steel strand and the slip amount of the longitudinal steel strand. With an increase in lap length, the slip amount and ‘lap stiffness’ to peak load increased, while the ultimate bond strength decreased. Based on the experimental analysis, a calculation formula for lap strength considering the correction coefficient β was established.

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“…In terms of new structures reinforced with FRP and ECC, Wang et al [27] conducted an experimental study on the flexural performance of basalt-FRP (BFRP) bars reinforced seawater sea-sand concrete beams with textile reinforced ECC as the tensile protective layer. Ge et al [28][29] conducted a series of studies on the flexural properties of FRP reinforced ECC-concrete composite beams (ECC was located at the lower part of the beam), and the reinforcement types included FRP bars, hybrid FRP/steel bars, and externally bonded carbon fiber sheets.…”

Section: Introductionmentioning

confidence: 99%

I-shaped ECC/UHPC composite beams reinforced with steel bars and BFRP sheets

Dong¹,

Ji²,

Liu³

et al. 2022

Sustain. Struct.

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This paper proposes a new type of small-sized I-shaped engineered cementitious composite (ECC)/ ultra-high performance concrete (UHPC) composite beam which has the potential to be suitable for corrosive environments. The lower tensile part of the beam was made of ECC material (2/3 of the height), and the top compressive part was made of UHPC material (1/3 of the height). Inner embedded steel bars and surface-bonded basalt fiber reinforced polymer (BFRP) sheets were adopted as the reinforcing materials in combination. A total of nine I-shaped beams were designed and tested under four-point bending test. The influence of parameters such as the ratio of the embedded tensile steel bars, the top UHPC flange, and the surface bonded tensile BFRP sheet on the behavior of the beams was investigated. The results showed that the I-shaped ECC/UHPC composite beams have excellent comprehensive performance, and thanks to the ultra-high durability of the component materials, they have ultra-high durability that ordinary I-steel beams do not have and thus have broad application prospects in corrosive environments. The shear resistance capacity of the thin-walled ECC web needs to be further improved, and UHPC is recommended for the web in the follow-up study.

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Flexural behavior of BFRP reinforced seawater sea-sand concrete beams with textile reinforced ECC tension zone cover

Cited by 16 publications

References 30 publications

Sectional Analysis of Reinforced Engineered Cementitious Composite Columns Subjected to Combined Lateral Load and Axial Compression

Sectional Analysis of Reinforced Engineered Cementitious Composite Columns Subjected to Combined Lateral Load and Axial Compression

Experimental Study on Lap-Spliced Performance of High-Strength Stainless Steel Wire Mesh in Engineering Cementitious Composites

I-shaped ECC/UHPC composite beams reinforced with steel bars and BFRP sheets

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