Out-of-Plane Response of ECC Strengthened Masonry Wallets with Openings

Singh, S. B.; Munjal, Pankaj

doi:10.1007/s12205-020-1346-x

Cited by 7 publications

(5 citation statements)

References 30 publications

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“…Therefore, it can be concluded that ECC sheets efficiently reduce the number of yielded elements in the URM wall and also, the higher the ECC thickness, the less the yielded elements. In the study of Singh and Munjal [35] the optimum thickness of the ECC sheets used for retrofitting the masonry walls is between 20-50 mm. However, to investigate the bond failure of the models by increasing the thickness of the walls from 20 to 30 mm, in addition to the cohesive behavior presented previously, two other interacting approaches connecting masonry prism and ECC sheets are used and the results are compared.…”

Section: Numerical Analysis Resultsmentioning

confidence: 99%

“…A finite element analysis (FEA) is conducted to simulate the laboratory experiments that were carried out by Singh and Munjal [35]. Table 6 compares the results we obtained in the numerical modeling and the experimental studies, and Figure 9 depicts both the load-displacement curves.…”

Section: Validation Of Numerical Model and Mesh Sensitivity Analysismentioning

confidence: 99%

“…Singh and Munjal [35] used numerical simulation to conduct a parametric analysis of the out-of-plane performance of ECC-based URM walls with openings. They discovered that the load-carrying capability of ECC-enhanced masonry walls with apertures is approximately six times that of the examined unstrengthened masonry walls.…”

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confidence: 99%

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Cyclic Behavior of Masonry Shear Walls Retrofitted with Engineered Cementitious Composite and Pseudoelastic Shape Memory Alloy

Tabrizikahou

Kuczma

Łasecka-Plura

et al. 2022

Sensors

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The behavior of masonry shear walls reinforced with pseudoelastic Ni–Ti shape memory alloy (SMA) strips and engineered cementitious composite (ECC) sheets is the main focus of this paper. The walls were subjected to quasi-static cyclic in-plane loads and evaluated by using Abaqus. Eight cases of strengthening of masonry walls were investigated. Three masonry walls were strengthened with different thicknesses of ECC sheets using epoxy as adhesion, three walls were reinforced with different thicknesses of Ni–Ti strips in a cross form bonded to both the surfaces of the wall, and one was utilized as a reference wall without any reinforcing element. The final concept was a hybrid of strengthening methods in which the Ni–Ti strips were embedded in ECC sheets. The effect of mesh density on analytical outcomes is also discussed. A parameterized analysis was conducted to examine the influence of various variables such as the thickness of the Ni–Ti strips and that of ECC sheets. The results show that using the ECC sheet in combination with pseudoelastic Ni–Ti SMA strips enhances the energy absorption capacity and stiffness of masonry walls, demonstrating its efficacy as a reinforcing method.

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Section: Numerical Analysis Resultsmentioning

confidence: 99%

Section: Validation Of Numerical Model and Mesh Sensitivity Analysismentioning

confidence: 99%

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Cyclic Behavior of Masonry Shear Walls Retrofitted with Engineered Cementitious Composite and Pseudoelastic Shape Memory Alloy

Tabrizikahou

Kuczma

Łasecka-Plura

et al. 2022

Sensors

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show abstract

“…It is found that SHCC can greatly improve the out-of-plane strength and ductility of masonry structure through bending test, local-loading test, uniform-loading test and low-speed impact Frontiers in Materials frontiersin.org test (Singh and Munjal, 2020). This can effectively prevent masonry structure from collapse and destruction in earthquake and other sudden disasters.…”

Section: Figurementioning

confidence: 98%

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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“…Angle of dilation (Ψ) [28] 20 Eccentricity ratio (ε) [29] 0.1 Ratio of biaxial-to-axial compressive stress (σ b0 /σ c0 ) [30] 1.16…”

Section: Notation Valuementioning

confidence: 99%

Analytical and Numerical Investigation of the Behavior of Engineered Cementitious Composite Members under Shear Loads

Arulanandam¹,

Sivasubramnaian²,

Chellapandian³

et al. 2022

Materials

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This research discusses the performance of engineered cementitious composite (ECC) beams with and without transverse reinforcements using thorough analytical and finite element (FE) approaches under shear. The overall goal of this investigation was to assess the impact of various design characteristics, such as (i) shear span-to-effective depth ratio, (ii) transverse reinforcement ratio, etc., on the shear behavior of ECC beams. Nonlinear three-dimensional (3-D) FE analysis was performed with the commercial software ABAQUS to simulate the shear performance of ECC beams by employing the material properties obtained from the damage plasticity model. The correctness of the proposed FE model was validated with the benchmark experiments available in the literature. The developed FE model accurately computed the ECC beam’s overall load–deflection behavior and failure modes. In addition, the provision available in the Architectural Institute of Japan (AIJ) A-method was successfully employed to assess the shear load-carrying capacity of ECC beams. Furthermore, the effects of transverse reinforcement (pw) and shear span-to-depth ratio (a/d) on the behavior of ECC beams were also investigated. From a detailed parametric study, it was understood that a decreased a/d ratio exhibits enhanced load-carrying capacity for beams with and without stirrups for a particular cross-section. It was also observed that for the entire a/d ratio, the amount of stirrups had no substantial effect on the load-carrying capability of ECC beams.

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Out-of-Plane Response of ECC Strengthened Masonry Wallets with Openings

Cited by 7 publications

References 30 publications

Cyclic Behavior of Masonry Shear Walls Retrofitted with Engineered Cementitious Composite and Pseudoelastic Shape Memory Alloy

Cyclic Behavior of Masonry Shear Walls Retrofitted with Engineered Cementitious Composite and Pseudoelastic Shape Memory Alloy

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

Analytical and Numerical Investigation of the Behavior of Engineered Cementitious Composite Members under Shear Loads

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