Seismic Performance of Cantilever-Reinforced Concrete Masonry Shear Walls

Ahmadi, Farhad; Hernandez, Jaime; Sherman, Jacob; Kapoi, Christina; Klingner, Richard E.; McLean, David I.

doi:10.1061/(asce)st.1943-541x.0000941

Cited by 28 publications

(5 citation statements)

References 4 publications

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“…In the last few decades, the in-plane shear and flexural behaviour of RM shear walls have been extensively investigated (Shing et al 1990 are largely associated to flexural mode failure, (3) Bar fracture (BF) is linked to the nominal reinforcement detailing and (4) Diagonal shear failure (SF) is mainly related to shear demand and shear strength of the RM section. There are other factors, which also affect the in-plane performances of RM walls, such as boundary conditions, slenderness ratio and aspect ratio, and consequently many of these factors are interrelated, which makes it complex to exactly correlate failure modes with the parameters that induce them (Banting and El-Dakhakhni 2012; Ahmadi et al 2014).…”

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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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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“…Ahmad et al [13] Presented an experimental and analytical study on 30 models of cantilever shear wall specimens under reversed cyclic loading. Based on test results, the relationship between key design parameters and the nonlinear hysteretic response of the specimens was evaluated.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Unreinforced and Reinforced Masonry Structures Modeling Strategies

Husain

Zaghlal

El-Sisi

et al. 2022

The Egyptian International Journal of Engineering Sciences and

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st FRP 2 nd FINITE ELEMENT METHOD 3 rd MORTAR 4 th BRICKS Masonry structures were the oldest known construction system since the dawn of ancient civilizations and have a great width between all the structures; it was designed commonly for the past 100 years worldwide. As it was commonly effective to resist compressive stresses, despite its weak tensile strength. From a geometrical point of view masonry was generally able to withstand lateral loads such as wind, seismic, and blast loads. In the last decades, the scientific interest towards fiber-reinforced polymers (FRP) requirements for masonry reinforcement on one side, especially in highly diversified Italian architectural heritage. The reinforcing technique is dependent on a high-strength fiber-reinforced polymers (FRP) network embedded into inorganic matrices, which recently was promoted for seismic modifying of brickwork buildings. The modeling techniques for modeling masonry could be classified into three types: detailed micro-modeling, simplified micro-modeling, and macro-modeling. In this paper the authors have reviewed some unreinforced and reinforced masonry structure modeling strategies and methods, mechanical behavior, and the influencing factors, now available in the technical literature.

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“…Shear wall is one of the important structures that can bear a horizontal shear force; many studies have been carried out on shear walls [ 13 , 14 , 15 , 16 , 17 ]. With the increasing number of environmental problems in the world due to the construction industry, it has become necessary to use energy-efficient techniques for construction.…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance of Composite Shear Walls Constructed Using Recycled Aggregate Concrete and Different Expandable Polystyrene Configurations

et al. 2016

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The seismic performance of recycled aggregate concrete (RAC) composite shear walls with different expandable polystyrene (EPS) configurations was investigated. Six concrete shear walls were designed and tested under cyclic loading to evaluate the effect of fine RAC in designing earthquake-resistant structures. Three of the six specimens were used to construct mid-rise walls with a shear-span ratio of 1.5, and the other three specimens were used to construct low-rise walls with a shear-span ratio of 0.8. The mid-rise and low-rise shear walls consisted of an ordinary recycled concrete shear wall, a composite wall with fine aggregate concrete (FAC) protective layer (EPS modules as the external insulation layer), and a composite wall with sandwiched EPS modules as the insulation layer. Several parameters obtained from the experimental results were compared and analyzed, including the load-bearing capacity, stiffness, ductility, energy dissipation, and failure characteristics of the specimens. The calculation formula of load-bearing capacity was obtained by considering the effect of FAC on composite shear walls as the protective layer. The damage process of the specimen was simulated using the ABAQUS Software, and the results agreed quite well with those obtained from the experiments. The results show that the seismic resistance behavior of the EPS module composite for shear walls performed better than ordinary recycled concrete for shear walls. Shear walls with sandwiched EPS modules had a better seismic performance than those with EPS modules lying outside. Although the FAC protective layer slightly improved the seismic performance of the structure, it undoubtedly slowed down the speed of crack formation and the stiffness degradation of the walls.

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Seismic Performance of Cantilever-Reinforced Concrete Masonry Shear Walls

Cited by 28 publications

References 4 publications

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

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

A Comprehensive Review on Unreinforced and Reinforced Masonry Structures Modeling Strategies

Seismic Performance of Composite Shear Walls Constructed Using Recycled Aggregate Concrete and Different Expandable Polystyrene Configurations

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