Numerical analysis of RC wall with opening strengthened by CFRP subjected to eccentric loads

doi:10.14256/jce.1707.2016

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Given that the samples differ by less than 10%. This finding is consistent with Harba and Abdulridha [50] and Risan et al [51].…”

Section: Conclusion and Results -Certification Resultssupporting

confidence: 92%

Behavior of a Multi-Story Steel Structure with Eccentric X-Brace

Abdulridha

2023

Frattura Ed Integrità Strutturale

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Eccentrically Braced Frames (EBFs) outperform moment-resisting frames in seismically active regions because of their strength, stiffness, energy dissipation, and ductility. Conventional bracing systems, such as X, Y, V, or K types, are utilized to enhance structural integrity. This study employs computational modelling to analyze multi-story steel buildings featuring an eccentric X-brace system. In this investigation, 120 multi-story steel frame buildings were selected. These multi-story structures comprise six-, nine-, and twelve-story geometries. ETABS built a full-scale FE model of multi-story structures. The study's parametric variables are the X-brace eccentricity, steel X-brace section size, and X-braced placement. Steel X-braces may have an eccentricity of 500, 1000, or 1500 millimeters. The ETABS model was validated when its findings matched experimental data. According to the data, the eccentric X-brace increases top-story displacement more for 6-story multi-story structures than for 9- and 12-story ones. Eccentric X-braces reduced lateral stiffness, allowing more significant floor movement. Eccentric and diagonal braces offer less lateral rigidity than concentrically braced frames due to their flexibility. Eccentricity reduces stiffness, even if the X-braced component has a larger cross-section. EBFs may migrate horizontally. Since the EBF absorbs more energy, changing the X-brace section size and eccentricity affects its ductility.

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“…Given that the samples differ by less than 10%. This finding is consistent with Harba and Abdulridha [50] and Risan et al [51].…”

Section: Conclusion and Results -Certification Resultssupporting

confidence: 92%

Behavior of a Multi-Story Steel Structure with Eccentric X-Brace

Abdulridha

2023

Frattura Ed Integrità Strutturale

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“…At external columns of RC frames, the axial load decreases on the one side and increases on the opposite side, which is caused by overturning moments. In fact, the inelastic response of columns is significantly affected by variations in axial force during the response cycle [6][7][8][9]. In general, the cycle of biaxial transversal load increases the degradation in strength and stiffness compared with the uniaxial load.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of RC columns under cyclic uniaxial and biaxial lateral load

2021

JCE

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A numerical finite element study is conducted in this paper to examine structural behaviour of high strength RC columns exposed to biaxial and uniaxial lateral displacement histories with constant axial load. The numerical analysis of 24 models was made using ABAQUS / CAE. The comparison between numerical analysis and experimental results shows good agreement through validations. The considered parametric study involves determination of the longitudinal reinforcement ratio, total cross-sectional area of confinement steel (Ash), and uniaxial and biaxial cyclic shear load. Numerical analysis results show that an increase of longitudinal reinforcement for a uniaxial and biaxial lateral historic load will significantly increase maximum and ultimate load of columns, corresponding deflections, number of cycles at maximum and ultimate loads, and initial stiffness Ki, while the effect of transverse reinforcement is less pronounced. The columns load and deformation capacity decreases significantly with application of biaxial cyclic shear load, compared with uniaxial load. Also, this effect reduces with an increase in longitudinal reinforcement ratio (%ρl) and Ash.

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“…The light weight makes it easier to apply, which reduces labor costs. Other favorable characteristics are a significant strength to weight ratio, increase in shea load capacity, excellent behavior under dynamic loads, ability to assume various shapes and lengths, ease, and speed of application [30,31].…”

Section: Fiber-reinforced Polymers (Frps)mentioning

confidence: 99%

Review of Methods for Seismic Strengthening of Masonry Piers and Walls

2023

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The seismic strengthening of buildings in earthquake-prone areas has been a hot topic in recent years, especially for masonry structures. Because there are so many masonry structures and because most were built before seismic codes existed, their seismic vulnerability is an unavoidable issue. Over the years, several methods for seismic strengthening of masonry piers and walls have been developed that may roughly be classified as traditional or modern. In this paper, an overview of the most commonly used and effective methods will be presented with an emphasis on modern methods based on a Fabric-Reinforced Cementitious Matrix. The advantages and disadvantages will be discussed from the point of view of usability, feasibility, and effectiveness. Finally, a comparison will be drawn between traditional and new methods based on composite materials.

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Numerical analysis of RC wall with opening strengthened by CFRP subjected to eccentric loads

Cited by 6 publications

References 7 publications

Behavior of a Multi-Story Steel Structure with Eccentric X-Brace

Behavior of a Multi-Story Steel Structure with Eccentric X-Brace

Numerical analysis of RC columns under cyclic uniaxial and biaxial lateral load

Review of Methods for Seismic Strengthening of Masonry Piers and Walls

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