Instability of Thin Concrete Walls with a Single Layer of Reinforcement under Cyclic Loading: Numerical Simulation and Improved Equivalent Boundary Element Model for Assessment

Rosso, Angelica; Jimenez-Roa, Lisandro A.; Almeida, João Pacheco de; Beyer, Katrin

doi:10.1080/13632469.2019.1691679

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…However, during this latter program, only one wall configuration was considered and the longitudinal steel was significantly more ductile than typically used in Colombian construction practice. A more recent program [14,15] focused on uniaxial tension-compression tests on a series of 12 isolated boundary elements with different thicknesses, steel reinforcement ratios, and rebar eccentricities. These tests reported the behavior of specimens representing the boundary elements, but they evidently miss the effect of the entire wall; in particular, as discussed by Rosso et al [15], the influence of the vertical displacement profiles imposed on wall boundary elements is significantly distinct from the imposed displacement on uniaxial tests.…”

Section: Introductionmentioning

confidence: 99%

“…A more recent program [14,15] focused on uniaxial tension-compression tests on a series of 12 isolated boundary elements with different thicknesses, steel reinforcement ratios, and rebar eccentricities. These tests reported the behavior of specimens representing the boundary elements, but they evidently miss the effect of the entire wall; in particular, as discussed by Rosso et al [15], the influence of the vertical displacement profiles imposed on wall boundary elements is significantly distinct from the imposed displacement on uniaxial tests. McMenamin [16] carried out tests on several slender precast cantilever walls; however, only two of them had an M/VL w ratio of 2.5.…”

Section: Introductionmentioning

confidence: 99%

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Response of thin lightly-reinforced concrete walls under cyclic loading

Blandon

Arteta

Bonett

et al. 2018

Engineering Structures

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Response of thin lightly-reinforced concrete walls under cyclic loading

Blandon

Arteta

Bonett

et al. 2018

Engineering Structures

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“…The effects of different parameters on the instability of singlyreinforced walls is also studied by Rosso et al [21]. The evolution of out-of-plane instability was also observed in several limited ductile walls tested by Menegon et al [22].…”

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confidence: 88%

Design recommendations to prevent global out-of-plane instability of rectangular reinforced concrete ductile walls

Dashti

Dhakal

Pampanin

2021

BNZSEE

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Observations of out-of-plane (OOP) instability in the 2010 Chile earthquake and in the 2011 Christchurch earthquake resulted in concerns about the current design provisions of structural walls. This mode of failure was previously observed in the experimental response of some wall specimens subjected to in-plane loading. Therefore, the postulations proposed for prediction of the limit states corresponding to OOP instability of rectangular walls are generally based on stability analysis under in-plane loading only. These approaches address stability of a cracked wall section when subjected to compression, thereby considering the level of residual strain developed in the reinforcement as the parameter that prevents timely crack closure of the wall section and induces stability failure. The New Zealand code requirements addressing the OOP instability of structural walls are based on the assumptions used in the literature and the analytical methods proposed for mathematical determination of the critical strain values. In this study, a parametric study is conducted using a numerical model capable of simulating OOP instability of rectangular walls to evaluate sensitivity of the OOP response of rectangular walls to variation of different parameters identified to be governing this failure mechanism. The effects of wall slenderness (unsupported height-to-thickness) ratio, longitudinal reinforcement ratio of the boundary regions and length on the OOP response of walls are evaluated. A clear trend was observed regarding the influence of these parameters on the initiation of OOP displacement, based on which simple equations are proposed for prediction of OOP instability in rectangular walls.

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“…More details on these aspects can be referred in Sritharan et al (2014); Rosso et al (2022), and Dashti et al (2022). In general, RC walls with special boundary element details are emphasised to be designed as ductile walls, whereas RC walls with double layers of reinforcement, without boundary element detailing are regarded as limited-ductile walls.…”

Section: Introductionmentioning

confidence: 99%

In-plane drift characteristics of fully grouted reinforced masonry shear walls

Ghaseminia,

Zahra,

Thambiratnam

et al. 2023

Preprint

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This paper outlines an approach to predict the drift capacities of fully grouted reinforced masonry (RM) shear walls under in-plane loading. The RM walls are provided with centrally placed single layer of reinforcement curtain, which raises a question on their drift and ductility characteristics over double layered reinforced concrete (RC) walls. To study the drift capacities of RM walls, an experimental database was developed comprising 152 shear walls tested under in-plane loading in this study. This database was then used to assess the critical parameters that influence the in-plane drift capacities of RM walls. It was found that the shear reinforcement ratio, shear stress demand, aspect and effective slenderness ratios are most sensitive to in-plane drift capacities of RM walls. Existing analytical and empirical models to predict the in-plane drift capacities of shear walls were initially considered to verify their applicability in predicting the drift capacities of RM walls. The analyses showed that existing analytical models under-predicted and the empirical models over-predicted the ultimate drift capacities of RM walls. Consequently, this study used the developed experimental database to propose a set of empirical models to predict the in-plane drift capacities of RM walls. The proposed models would facilitate the analysis of drift capacities of RM walls with different configurations and thereby enable the implementation of displacement-based performance design approach for such walling systems.

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Instability of Thin Concrete Walls with a Single Layer of Reinforcement under Cyclic Loading: Numerical Simulation and Improved Equivalent Boundary Element Model for Assessment

Cited by 11 publications

References 31 publications

Response of thin lightly-reinforced concrete walls under cyclic loading

Response of thin lightly-reinforced concrete walls under cyclic loading

Design recommendations to prevent global out-of-plane instability of rectangular reinforced concrete ductile walls

In-plane drift characteristics of fully grouted reinforced masonry shear walls

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