Investigation of the shear behaviour of multi-story reinforced concrete walls with eccentric openings

Taleb, Rafik; Bechtoula, Hakim; Sakashita, Masanubo; Nour-Eddine, Bourahla; Kôno, Susumu

doi:10.12989/cac.2012.10.4.361

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…A series of experimental and analytical studies were carried out to study the performance of RC shear walls under lateral loads [13][14][15][16] . A proper numerical simulation can lead to a rational determination of the design.…”

Section: Validity Of Feamentioning

confidence: 99%

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Experimental and numerical studies on the lateral performance of concrete sandwich walls

2020

Structural Design Tall Build

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Summary A series of quasi‐static tests was presented to study the lateral behavior of concrete sandwich walls and the precast concrete sandwich walls; the finite element analysis (FEA) models were built for numerical simulation of the specimens, and the parameters affecting the seismic performance of sandwich walls, and the precast sandwich walls were also analyzed based on the FEA models. The results show that the shear failure occurs in regular squat shear wall; the setting of the foam plate effectively reduces the stiffness and load capacity, and the reasonable design of sandwich region is conducive to the seismic performance. The responses obtained by the FEA models match well with the experimental results. The stiffness and load capacity of sandwich wall are increased, but the ductility is reduced when the axial load is increased; the deformation capacity can be greatly improved by increasing the aspect ratio but at the cost of load capacity and stiffness; the reasonable match of load capacity, stiffness, and ductility can be achieved by maintaining the appropriate length and thickness of the foam plate. The greater the friction force of CAF in the vertical seam of precast sandwich wall, the greater the load capacity and initial stiffness and the stronger the integrity of the jointed wall. When the strength of SRS in the horizontal seam is small, the concrete sandwich wall basically maintains elasticity; the deformation is mainly concentrated on SRS; when the strength of SRS is too large, SRS do not yield or the yield displacement is large, and the load capacity is mainly affected by the concrete sandwich wall.

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Section: Validity Of Feamentioning

confidence: 99%

“…Taking specimen PCW2 as the prototype, the influence of strength of SRS is studied by changing the diameter of SRS. The diameters of SRS are selected to be 14,16,18,20,22,24, and 26 mm corresponding to the models PCW2-H1-PCW2-H7. Seven models are also conducted monotonic loading, respectively.…”

Section: Strength Of Srsmentioning

confidence: 99%

Experimental and numerical studies on the lateral performance of concrete sandwich walls

2020

Structural Design Tall Build

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“…To achieve this goal, designers should provide adequate strength and deformation capacity. Hence, several experimental and analytical studies were conducted to investigate the behaviour of RC structural walls under lateral loads in order for designers to predict their structural performance when subjected to severe seismic excitations [3][4][5][6][7][8]. A proper simulation of the ultimate deformation capacity of RC structural walls leads also to a rational determination of the behaviour factor or response modification factor used in seismic design codes.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Ultimate Deformation of RC Structural Walls with Confined Boundary Regions

Taleb

Watanabe

Kôno

2017

Period. Polytech. Civil Eng.

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For accurate assessment of performance levels in reinforced concrete (RC) members, it is important to well define deformation limits at particular damage states. For RC walled building, investigation of the deformation limits of RC structural walls is required to define limit states and corresponding limiting values. Numerical investigations were carried out on barbell shape and rectangular RC walls with confined boundaries to evaluate response curves and ultimate deformations. A nonlinear 2D and 3D finite elements (FE) models were built in order to simulate the load-deformation relations under monotonic loading as well as cracking and damage patterns of previously tested walls. The FE models were able to simulate the backbone curves with good accuracy as well as the ability of boundary columns in reducing damage level. The 3D FE model simulated very well the ultimate deformation compared to 2D models. A sectional fibre model combined with plastic hinge length and shear deformation component is proposed in order to simulate the backbone curves and the ultimate deformation with less computational cost compared to 3D FE analysis. The model was able to provide relatively accurate backbone curves with very good estimation of ultimate drift.

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“…Reinforced concrete structures with L shape walls offer advantages of open space and flexible architecture modelling. However, until now, seismic behavior of buildings with such configuration is not well known [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Shear Stress Variation of RC Wall with L Shaped Section

Chaouch

Boutemeur²,

Bechtoula³

et al. 2015

Period. Polytech. Civil Eng.

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Several high rise buildings in the world are made of reinforced concrete shear walls. This type of structures performed very well during the past earthquakes better than reinforced concrete frame buildings.Concrete wall structures are well known for their excellent performance during earthquakes. Since 1963, no concrete building with shear walls has collapsed during an earthquake [19]. In some cases, buildings with concrete structural walls showed little or no damage when neighbouring reinforced concrete frame buildings were severely damaged or destroyed.One type of seismic force resisting structure used in high-rise wall buildings is a centrally located core without supplemental moment resisting frames.Effect of some parameters on the behavior and performance of reinforced concrete shear walls was carried out in the past. However, these studies were conducted on rectangular reinforced concrete shear walls. Frequently, designers are using other configurations beside the rectangular cross sections, such as T-shaped, H shaped and U shaped cross sections, in order to reach higher levels of strength and stiffness.In many cases, these complex members show completely different behaviors than rectangular walls, and particular consideration is needed when these shapes are used in structures. Among all types of flanged shear walls, the ones with T-, H-, and U-shaped cross sections have been those most studied by researchers [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Research has been more focused on walls with symmetric cross sections, and few studies in the literature report the behavior of flanged shear walls with asymmetric cross sections, such as L-shaped walls. The stiffness, strength, and

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Investigation of the shear behaviour of multi-story reinforced concrete walls with eccentric openings

Cited by 7 publications

References 9 publications

Experimental and numerical studies on the lateral performance of concrete sandwich walls

Experimental and numerical studies on the lateral performance of concrete sandwich walls

Numerical Study on the Ultimate Deformation of RC Structural Walls with Confined Boundary Regions

Numerical Study on Shear Stress Variation of RC Wall with L Shaped Section

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