Seismic behaviour of reinforced concrete shear walls with regular and staggered openings after the strong earthquakes between 2009 and 2011

Moșoarcă, Marius

doi:10.1016/j.engfailanal.2013.05.014

Cited by 31 publications

(14 citation statements)

References 13 publications

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“…For verification purposes, the numerical model using 3D-NLFEA finite element package was verified with the current experimental work carried out by [15]. The experimental work in [15] consisted of a shear wall with an opening, and the reinforcement was classified as normalstrength steel (NSS). From [15], only one specimen with ID SW8 was investigated.…”

Section: A 3d-nlfea Model Verification With Existing Experimental Testmentioning

confidence: 99%

Finite Element Analysis on the Nonlinear Behavior of the Rc Shear Wall With Regular Openings Influenced by High-Strength Steel

Nurahida¹,

Piscesa²,

Aji³

et al. 2022

Journal of Civil Engineering

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This paper presented a nonlinear finite element analysis of lateral loading RC shear walls with regular openings using the 3D-NLFEA program. The RC shear walls model was generated from the available test results in the literature. To model the concrete under a complex stress state, a multi-surface plasticity model which combines compression failure surface with tension cut-off failure surface was used. The model was intended to look at the load-displacement relationship and the crack pattern between the model and the numerical model. In addition to the numerical model verification, parametric studies were carried out to investigate the use of high-strength steel (HSS) of the two different grades (Grades 100 and 120) to replace all the normalstrength steel (NSS) or only some of it. The parametric studies found that the shear wall with the NSS bar demonstrated higher stiffness and achieved higher lateral load with the lowest extent of damage (compared to the RC shear wall with the HSS bar). On the other hand, using the HSS bar resulted in lower stiffness, lower lateral load, and higher damage region, which was expected as more strain is required to yield the HSS bar.

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Section: A 3d-nlfea Model Verification With Existing Experimental Testmentioning

confidence: 99%

Finite Element Analysis on the Nonlinear Behavior of the Rc Shear Wall With Regular Openings Influenced by High-Strength Steel

Nurahida¹,

Piscesa²,

Aji³

et al. 2022

Journal of Civil Engineering

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“…The database contains samples with aspect ratios of one and greater. For the slender shear wall, samples have been adopted from References . The samples for the squat shear wall have been adopted from References.…”

Section: Experimental Datamentioning

confidence: 99%

Effective stiffness of concrete shear walls based on statistical analysis

Sharifi

Shafieian

2018

Structural Concrete

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A review of current studies in concrete shear walls shows considerable uncertainty in the effective stiffness of these elements. Based on statistical analyses of 154 existing experiments on slender and squat walls, this paper proposes relations to determine the effective stiffness. Linear regression analyses are applied to determine the relationship between effective stiffness parameters such as axial load, reinforcement ratio, and aspect ratio. The results show the axial load plays a major role in the effective stiffness of the slender wall with correlation coefficient of 0.81. While, in case of squat shear walls, the axial load and the aspect ratio of the wall are the most significant parameters with correlation coefficient of 0.75 and 0.65, respectively. Finally, 2 relations are suggested for the effective stiffness of the slender and squat shear walls by linear regression analyses and are compared with the existing relations.

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“…Wang et al (2012) compared the regular RC perforated shear wall and the stacked perforated shear wall and found that there is no difference between them in the mechanical behavior. Marius et al (2013) combined the practical seismic investigation with the experimental to study the seismic performance of the perforated shear wall. Sakashit et al (2018) focused on the seismic performance of the staggered-perforated shear wall in the multi-story structure.…”

Section: Introductionmentioning

confidence: 99%

“…Though the proposed strut-and-tie model and γ u can achieve the high accuracy of prediction of capacity, the deviation procedures are based on the numerical model. Therefore, in this section, the model and reduction factor were used to calculate the capacity reported in Ali (1991), Yanez(1992), Marius (2013), Li (2016), and Sakashita (2018). The predicted capacity was compared with the experimental results, see in Table 7.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms and Prediction Model of Load-carrying Capacity in Staggered Perforated RC Flanged Shear Walls

Liu

Wang

Zhang

et al. 2022

Advances in Structural Engineering

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In order to understand the loading path and further anticipate the bearing capacity of the staggered perforated RC flanged shear walls, this paper proposed an improved strut-and-tie model and perforated reduction coefficient based on the theoretical and numerical analysis. The finite element model has been validated experimentally. The parametric study was conducted numerically to investigate the influence of shear-span ratio, axial compression load ratio, flange, dimension of perforation, and the additional rebar on the seismic performance of shear walls. When the ratio of perforation area to the wall is ranged from 10% to 26%, the proposed strut-and-tie model can effectively predict the loading path and the lateral ultimate bearing capacity with the different combinations of shear-span ratio and axial compression load ratio; however, if the ratio of the perforation area is either lower than 10% or higher than 26%, the proposed strut-and-tie model is not applicable. While the perforated reduction coefficient can be used to calculate the lateral ultimate bearing capacity of the perforated shear wall.

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Seismic behaviour of reinforced concrete shear walls with regular and staggered openings after the strong earthquakes between 2009 and 2011

Cited by 31 publications

References 13 publications

Finite Element Analysis on the Nonlinear Behavior of the Rc Shear Wall With Regular Openings Influenced by High-Strength Steel

Finite Element Analysis on the Nonlinear Behavior of the Rc Shear Wall With Regular Openings Influenced by High-Strength Steel

Effective stiffness of concrete shear walls based on statistical analysis

Mechanisms and Prediction Model of Load-carrying Capacity in Staggered Perforated RC Flanged Shear Walls

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