Experimental study on the contribution of masonry infill in the behavior of RC frame under seismic loading

Dautaj, Arton; Kadiri, Qani; Kabashi, Naser

doi:10.1016/j.engstruct.2018.03.013

Cited by 53 publications

(25 citation statements)

References 5 publications

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“…These are considered as nonstructural components and are often, therefore, usually neglected in structural analysis and design [2]. If separation joints are not provided between the infilled walls and frames, under seismic excitations, these walls might contribute to the load resisting mechanism and failure pattern of RC frames [3]. During an earthquake, both the positive and negative role of infilled walls on RC frames have been observed.…”

Section: Introductionmentioning

confidence: 99%

“…Opening in infilled frames reduces strength, stiffness and energy dissipation of the infilled frames. Many researchers have investigated the effect of opening on the performance of RC frames through the experimental setup [3,4,13,14]. For damage evaluation, FEMA 306 [14] and FEMA 307 [15] identifies that openings within the infill panels are the most significant parameter affecting seismic behavior of infilled systems.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Seismic Capacity for Reinforced Concrete Frames with Perforated Unreinforced Brick Masonry Infill Wall

et al. 2020

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Infill walls increase the strength and stiffness of the reinforced concrete frames, but they usually are not considering in design. However, when the infills are considered in the design, the opening for doors/windows necessitates investigation as well. This research work aims to investigate the effect of perforations (openings) in the infill walls on the performance of infilled RC frames, in other words, this research investigates the number of infill walls in infilled RC frames. Based on the current construction practices in Pakistan, two full scales perforated infilled RC frames were constructed in the laboratory. One infilled RC frame has an eccentric door and window (specimen-1) while the other has only window at its centre (specimen-2). Both the specimens were tested against reverse cyclic loading (quasi-static test). From the experimental testing, it was found that infilled RC frame having less amount of opening in infill wall has more resistance to lateral loads, have more stiffness and dissipated higher energy as compared to infilled RC frame having a significant size of the opening in infill wall. Similarly, displacement ductility (µD) and Response modification factor (R) also depend on the quantity of opening in infill wall in infilled RC frame. Doi: 10.28991/cej-2020-03091625 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Capacity for Reinforced Concrete Frames with Perforated Unreinforced Brick Masonry Infill Wall

et al. 2020

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“…The results obtained show that the distributed loading results in a 18.5 and 29% increase in the strength and stiffness of Infilled frames. After conducting an experimental research on masonry-infilled RC frames with various lateral strengths, the lateral design strength ratio of RC frame to masonry infill, in-filled with hollow clay blocks, greater than 1.2 (including the partial safety factor of 1.3) is suggested in order to have controlled failure mechanisms and to reduce the negative impacts of masonry infills on RC frames [21]. In a parametric study, failure surface parameters and dilation angle were shown to have a significant effect on the ultimate strength, cracking stiffness, as well as on the preand post-ultimate behaviour of the infilled frames, while those for fracture energy were shown to have only a small degree of influence on the ultimate load and post-ultimate behaviour of the models [22].…”

Section: Introductionmentioning

confidence: 99%

Comparison and assessment of material models for simulation of infilled RC frames under lateral loads

Timurağaoğlu

Doğangün

Livaoğlu

2019

JCE

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In the present study, the behaviour of infilled RC frames under earthquake loading is investigated numerically, and the influence of three different concrete material models on the in-plane behaviour of infilled RC frames is evaluated using the finite element analysis (FEA). For this reason, the efficiency of infilled walls is examined on full scale models. Finite element analysis results show that mathematical model of concrete may change behaviour of infilled RC frames. The post-peak behaviour is especially influenced. Key words: material model, Infill wall, reinforced concrete, finite element method Pregledni rad Mehmet Ömer Timurağaoğlu, Adem Doğangün, Ramazan Livaoğlu Usporedba i ocjena modela za simulaciju ponašanja AB okvira s ispunom pod bočnim opterećenjem U radu se numerički istražuje seizmičko ponašanje AB okvira s ispunom, te se proračunom konačnih elemenata (FEA) ocjenjuje utjecaj triju različitih betonskih modela na ravninsko ponašanje AB okvira s ispunom. U tu se svrhu učinkovitost ispune ocjenjuje na modelima u prirodnoj veličini. Rezultati proračuna konačnih elemenata pokazuju da matematički model betona može promijeniti ponašanje AB okvira s ispunom. Utjecaj je naročito značajan za ponašanje nakon vršnog opterećenja. Ključne riječi: materijalni model, ispunski zid, armirani beton, metoda konačnih elemenata Übersichtsarbeit Mehmet Ömer Timurağaoğlu, Adem Doğangün, Ramazan Livaoğlu Vergleich und Bewertung des Modells für die Simulation des Verhaltens von Stahlbetonrahmen mit Füllung bei seitlicher Belastung In der Abhandlung wird das seismische Verhalten von Stahlbetonrahmen mit Füllung nummerisch untersucht, und durch die Finite-Elemente-Berechnung (FEA) wird der Einfluss dreier unterschiedlicher Betonmodelle auf das Gleichgewichtsverhalten der Stahlbetonrahmen mit Füllung bewertet. Zu diesem Zweck bewertet man die Wirksamkeit der Füllung an Modellen in natürlicher Größe. Die Ergebnisse der Finite-Elemente-Berechnung zeigen, dass das mathematische Betonmodell das Verhalten der Stahlbetonrahmen mit Füllung verändern kann. Der Einfluss ist besonders für das Verhalten nach der Spitzenbelastung wichtig. Schlüsselwörter: Materialmodell, Massivwand, Stahlbeton, Finite-Elemente-Methode

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“…The experimental test results showed that the horizontally stacked infill formed a typical diagonal compressive strut and showed infill seismic performance than higher vertically stacked. Dautaj et al (2018) investigated that the behaviour of masonry-infilled reinforced concrete (RC) frames under various lateral strength. They found that the type of masonry unit influenced to the failure mechanism of masonry-infilled RC frames.…”

Section: Introductionmentioning

confidence: 99%

1/5 Ölçekli Betonarme Çerçevelere Farklı Güçlendirme Metotları Uygulanması Üzerine Deneysel Çalışmalar

Balik

Bahadir

2019

Konya Journal of Engineering Sciences

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In this experimental study; five RC frames with a scale of 1/5, single spans and two storey were produced so as to reflect the characteristics of existing structures. Two RC frames were used as the reference specimens that without an infill wall and autoclaved aerated concrete blocks (AAC) infilled wall. Three of these RC frames were strengthened as CFS (Cold Formed Steel) drywall system, infill RC shear wall and both external RC shear wall and column jacketing. All specimens produced were tested under reverse cyclic lateral loading and constant vertical loading. Strength, stiffness and energy dissipation capacities of all test specimens are compared with each other. The lateral load carrying capacity and energy dissipation capacities of strengthened specimens have occurred higher than reference specimens. But initial stiffness and stiffness at the max lateral load of specimen strengthened with CFS drywall system have occurred lower than reference specimen with AACW.

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Experimental study on the contribution of masonry infill in the behavior of RC frame under seismic loading

Cited by 53 publications

References 5 publications

Assessment of Seismic Capacity for Reinforced Concrete Frames with Perforated Unreinforced Brick Masonry Infill Wall

Assessment of Seismic Capacity for Reinforced Concrete Frames with Perforated Unreinforced Brick Masonry Infill Wall

Comparison and assessment of material models for simulation of infilled RC frames under lateral loads

1/5 Ölçekli Betonarme Çerçevelere Farklı Güçlendirme Metotları Uygulanması Üzerine Deneysel Çalışmalar

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