Evaluation of the Predictive Models for Stiffness, Strength, and Deformation Capacity of RC Frames with Masonry Infill Walls

Turgay, T.; Durmus, Meril Cigdem; Binici, Barış; Özcebe, Güney

doi:10.1061/(asce)st.1943-541x.0001069

Cited by 25 publications

(17 citation statements)

References 9 publications

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“…In the following, based on the numerical results for the considered range of wall configurations, in particular by varying H/L, charts for estimation of the drift at the peak force of CM walls, max, are proposed, similarly to the idea by Turgay et al (2014) [38] for RC frames with masonry infill walls.…”

Section: Displacement Capacitymentioning

confidence: 99%

Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models

Marques

Pereira

2020

Engineering Structures

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Confined masonry (CM) is a widely used solution for buildings in developing countries and has potential for worldwide application when considering its economic and constructive advantages.Although a large background of experimental testing of CM walls is available, numerical studies are further needed to extend the existing knowledge and derive analytical rules to adopt in design codes. In this work, a parametric numerical study is performed, aimed to characterize the lateral in-plane response of CM walls under different variables and to establish a dataset for comparison of engineering demand parameters, towards the proposal of predictive models. Benchmark walls tested under lateral in-plane loading are used to calibrate a finite element modelling approach for pushover analysis. Based on the results of the parametric study, a formulation and charts are proposed to respectively estimate the lateral resistance and displacement capacity of CM walls with features similar to the ones used as benchmark.

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Section: Displacement Capacitymentioning

confidence: 99%

Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models

Marques

Pereira

2020

Engineering Structures

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“…Holmes (1961), Mainstone RJ. (1974), Liauw and Kwan (1984), Decanini andFantin (1986), andTurgay et al (2014) suggested that the representation of masonry infills with a single diagonal strut is appropriate to capture the global behavior of infilled frames. On the contrary, El-Dakhakhni et al (2003), Crisafulli and Carr, (2007), and Yekrangnia and Mohammadi (2017) suggested that multi-diagonal struts are more accurate to capture the internal effects of infills on R/C or a steel frame.…”

Section: Introductionmentioning

confidence: 99%

Comparison Between Numerical Modeling Approaches of Infilled Frames Under In-Plane Load

Bouarroudj

Boudaoud

2022

Front. Built Environ.

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In the last few decades, important attention was given to infill masonry panels due to their worldwide uses. Many experimental and numerical studies were conducted to study their effect on the behavior of RC frames. In general, three modeling strategies are widely applied to model infill masonry, namely, micro-models, meso-models, and macro-models. This study investigates the accuracy of the width models to predict the behavior of masonry infills using the meso-modeling technique. To this aim, the masonry infills are modeled as an equivalent homogenized diagonal element in order to represent the diagonal action of masonry infills. The width models used to determine the width of the diagonal strut are used in meso-modeling. In addition, the study contains comparisons between different modeling techniques to predict the global behavior of the infilled frames. Experimental tests conducted on two infilled frames from the literature are considered to calibrate the numerical simulations. The results indicate that the micro-modeling approach gives a good agreement with the experimental tests in terms of lateral force and deformation shapes, the related errors varying between 0.12 and 2.8%. Using single strut models, the differences between numerical and experimental results vary from 1.1 to 20%. On the other hand, the errors obtained from multiple strut models are varying between 9 and 40%.

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“…For the evaluation of seismic performance, the accurate prediction of strength, stiffness, and deformation capacity is important. In most studies, the strength of the masonry-infilled frame is calculated as the sum of the strength of the frame and the strength of the masonry infills [3,4]. In the analysis results using the equivalent compression strut, which is the most common modeling approach for masonry-infilled frame buildings, the lateral strength of the structure is almost the same as the sum of the strength of the frame and the strength of the compression struts.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames

Kim

2021

Applied Sciences

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In this study, an experimental program was performed on masonry-infilled frame specimens with varied construction precision and masonry thickness. A total of five portal frame specimens, which consist of four masonry-infilled frames and a bare frame, were tested, and the results were analyzed to investigate the effects of construction precision and interaction between the masonry infill and the frame. The test results indicated that the gap in the masonry infill decreased strength by 75% to 80% and stiffness by 55% to 70%. A comparison between the measured and predicted peak strength using the current code shows that the code equations underestimate the strength by up to 70%. This is due to the fact that the contribution of friction in shear resistance of the masonry wall is actually ignored in the current code since no adequate method for estimating the normal force is provided. In addition, reflecting the observation that the failure mode of the columns changed to shear failure when thick masonry walls were used, a mechanical model that can explain the shear failure and enables the estimation of maximum strength was proposed. The maximum strengths of the specimens calculated using the proposed model were in good agreement with the experimental results.

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Evaluation of the Predictive Models for Stiffness, Strength, and Deformation Capacity of RC Frames with Masonry Infill Walls

Cited by 25 publications

References 9 publications

Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models

Lateral in-plane seismic response of confined masonry walls: From numerical to backbone models

Comparison Between Numerical Modeling Approaches of Infilled Frames Under In-Plane Load

Experimental Study on Lateral-Load-Resisting Capacity of Masonry-Infilled Reinforced Concrete Frames

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