Torsional behavior of BFRP bars reinforced engineered cementitious composites beams without stirrup

Liao, Qiao; Su, Yuanrui; Yu, Jiangtao; Yu, Kequan

doi:10.1016/j.engstruct.2022.114748

Cited by 20 publications

(6 citation statements)

References 37 publications

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“…(2) Energy-based criterion [2] Where and are the crack tip toughness and complementary energy, respectively. The specific formula of and are shown in Figure 1.…”

Section: Fiber Bridging Theorymentioning

confidence: 99%

“…Fibers with characters of high elastic modulus, high elongation rate, and high ultimate tensile strength are usually used to overcome the crack sensibility and intrinsic brittleness of concrete (1,2). ECC composited by PE or PVA, cement, and fine aggregates exhibit an applausive tensile pseudo strain hardening property, meanwhile, multiple tight cracking with a mean crack width under 100 μm was usually accompanied in the tensile plane (3)(4)(5)(6).…”

Section: Introductionmentioning

confidence: 99%

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Design of an explicit crack bridging constitutive model for engineered cementitious composites using polyvinyl alcohol (PVA) or polyethylene (PE) fiber

Wang,

Li,

et al. 2024

Mater. constr.

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This paper aims to establish an explicit crack bridging model that can link engineered cementitious composites (ECC) behavior from single fiber to single crack scale, which is great of designing ECC featuring pseudo tensile strain hardening and multiple cracks expanding by tailoring microstructure and materials selection. In this study, fiber bridging stress was divided into three parts including fiber bridging stress with no rupture, fiber debonding fracture stress, and fiber pullout fracture stress. Subsequently, the fundamental crack bridging model was emerged when fiber bridging stress with no rupture subtracted from the fiber rupture stress in debonding and pullout stage. Moreover, two-way pullout and Cook-Gordon effect were also considered to establish the complete model. It was found that the two-way pullout situation of polyvinyl alcohol (PVA) fiber has a significant influence on the crack opening width due to its slip hardening property, while the Cook-Gordon effect presents a faint crack width increment for PVA-ECC. However, the Cook-Gordon effect makes a significant contribution to the crack opening width of the composite produced by polyethylene (PE). This building intelligible model presents a better prediction for ECC through the comparison of experimental data or real average crack width in previous models, thus confirming the validity of this model.

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“…(2) Energy-based criterion [2] Where and are the crack tip toughness and complementary energy, respectively. The specific formula of and are shown in Figure 1.…”

Section: Fiber Bridging Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of an explicit crack bridging constitutive model for engineered cementitious composites using polyvinyl alcohol (PVA) or polyethylene (PE) fiber

Wang,

Li,

et al. 2024

Mater. constr.

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“…Due to the exceptional mechanical properties of SHCC, it has already been applied into major places, including beam-column Frontiers in Materials frontiersin.org connection (Figure 5) and infill masonry in RC structures (Qudah and Maalej, 2014;Liao et al, 2022a). Test results have proven that SHCC can reduce the use of reinforcement and even eliminate it under certain conditions (Liao et al, 2022b). As a result, fewer steel reinforcements are needed for reinforced SHCC beams, which provides practical value in civil engineering (Ding et al, 2018b).…”

Section: Structural Application On Rc Structuresmentioning

confidence: 99%

Tensile strain-hardening cementitious composites and its practical exploration without reinforcement: A review

et al. 2022

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Steel is widely used as reinforcement for brittle structural materials such as concrete structure and unreinforced masonry structure (URM). However, the job wasted in steel reinforcement installation and the following corrosion hinder the development of construction industry. The emergence of strain-hardening cement composites (SHCC) provides an opportunity for steel-free construction. This paper provides a comprehensive review of the properties of SHCC and the corresponding practical exploration without reinforcement. The authors herein begin with a discussion on the superior properties of SHCC and its structural applications on the RC structure. Following this, the application of SHCC to retrofit URM is reviewed. Finally, we presents the advances of SHCC used in 3D concrete printing (3DCP) technology, and discuss the feasibility of SHCC structures without reinforcements in the future. When these explorations are coupled with appropriate theoretical models, true values for auto-construction without steel reinforcement will emerge.

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“…Fortunately, the brittleness and low tensile strength of concrete can be significantly alleviated by adding short-cut and discontinuous fibers (Sahoo et al, 2015;Liang et al, 2016;Jalasutram et al, 2017;Cai et al, 2021;Liao et al, 2022). Particularly, engineered cementitious composite (ECC) corresponds to the broad fiber-reinforced concrete (FRC) class, and it has emerged with special characteristics such as multiple cracking, strain-hardening behavior, and high tensile ductility.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on seismic performance of plain engineered cementitious composite beams

et al. 2022

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The authors proposed using plain engineered cementitious composite (ECC) in construction without aligned reinforcement. In this study, ECC with a tensile strain capacity of up to 10% was produced, which has a comparable deformability level to steel reinforcement. To demonstrate the feasibility of plain ECC construction, five plain ECC beams and two steel reinforced concrete reference beams were prepared, and four-point bending reversed cyclic loading tests were conducted on the beam specimens. The experimental tests indicated that the plain ECC beams showed more stable hysteresis loops with improved energy dissipation capacity, deformation restoring capacity, and lower stiffness degradations than normal RC beams. Two categories of failure modes were observed, i.e., flexural failure mode and shear failure mode. With the increase in the shear span ratio, the failure mode of ECC beams changed from shear failure to flexural failure. Additionally, the increase in sectional dimension had a positive influence on the stiffness and energy dissipation capacity of ECC beams. It is experimentally verified that the plain ECC beams have sufficient load-bearing capacity under static and seismic loading.

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Torsional behavior of BFRP bars reinforced engineered cementitious composites beams without stirrup

Cited by 20 publications

References 37 publications

Design of an explicit crack bridging constitutive model for engineered cementitious composites using polyvinyl alcohol (PVA) or polyethylene (PE) fiber

Design of an explicit crack bridging constitutive model for engineered cementitious composites using polyvinyl alcohol (PVA) or polyethylene (PE) fiber

Tensile strain-hardening cementitious composites and its practical exploration without reinforcement: A review

Experimental investigation on seismic performance of plain engineered cementitious composite beams

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