Effects of Masonry Infill Wall on the Performance of RC Frames to Resist Progressive Collapse

Qian, Kai; Li, Bing

doi:10.1061/(asce)st.1943-541x.0001860

Cited by 95 publications

(37 citation statements)

References 17 publications

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“…Infilled frame designates a composite structure formed by one or more infill panels surrounded by frame, the frame is built first and then infilled with one or more masonry panels. Kai Qian and Bing Li [1] studied cause of masonry infill wall on the importance of RC frames to against progressive collapse and proved that experimental and analytical results indicated that ignoring the effects of masonry infill walls to resist progressive collapse of load carrying capacity, initial stiffness and load resisting mechanisms. Also, the suitability and effectiveness of fiberreinforced polymers (FRP) in strengthening and/or repairing unreinforced masonry infill walls in reinforced concrete frames which are subjected to in-plane seismic/cyclic loading were investigated by Tarek and Yousef [4].…”

Section: Introductionmentioning

confidence: 96%

Enhancement of Interaction Between Infilled Wall and Rc Framed Structure

P.Jagadeesan¹

2018

IJRET

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Normally, Reinforced Concrete (RC) framed structures are formed through structural and non structural elements and structural elements are designed in RC framed structure. Non structural element likes infilled wall is not designed but it is used to fill the openings and separation of room in buildings. However, some percentage of behaviour between infill and frame can take itself at the time of loading. According to that, the aim of the project is to improve interaction between RC frame and infilled wall. In this project, three types of specimen were prepared for studying the influence of infilled wall in framed structure by through single bay, single storey specimen with one-tenth scale model as RC framed structure without infilled wall, RC framed structure with infilled wall, RC framed structure with infilled wall under strengthened by connector. Here, properties of concrete and steel were also measured for analysis of experimental work. Besides, the specimens were prepared under earthquake detailing and testing of specimens was carried out through the Universal Testing Machine. Experimental values are compared in the order of strength, ductility and failure mechanism of the specimens. Finally, the ultimate load carrying capacity of RC frame with connector is 1.633 times greater than that of RC frame without infilled wall. The initial stiffness of the RC frame with connector was 1.131 times higher than that of the frame without infill. The ductility of frame with infilled wall is 4.44 times greater than that of frame with infilled wall.

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Section: Introductionmentioning

confidence: 96%

Enhancement of Interaction Between Infilled Wall and Rc Framed Structure

P.Jagadeesan¹

2018

IJRET

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“…Dolgu duvarlı betonarme çerçeve sistem ile dolgu duvarsız betonarme çerçeve sistem karşılaştırıldığında ise dolgu duvarların çerçeve sistem ile çalışması başlangıç rijitlik ve maksimum yük kapasitesini arttırdığı ve dolgu duvarsız betonarme çerçeveye benzer deplasman kapasitesine sahip olduğu görülmüştür. Dolgu duvarsız boş betonarme çerçeveye göre dolgu duvarlı betonarme çerçeve sistem benzer maksimum deplasmanda daha fazla yük kapasitesine sahip olduğu gözlenmiştir [3].…”

Section: Introductionunclassified

Deprem Yükleri Altında Betonarme Bir Yurt Binasının Perde Duvar İle Güçlendirilmesinde Mevcut Duvarlarının Etkisinin İncelenmesi

Dönmez

2019

Deu Muhendislik Fakultesi Fen Ve Muhendislik

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Öz Geçmişten günümüze gelen düşük kaliteli beton kullanılarak inşa edilen betonarme yapı ile mimari açıdan farklı mekanların oluşturulmasını sağlayan taş ve tuğla duvarların malzeme kalitesi, tasarım ve işçilik gibi hususlarda hatalı kurgulanması deprem etkilerine karşı yapıları zayıflatmaktadır. Bu yapıların depreme karşı güçlendirilmesinde deprem perdelerinin yapıdaki dayanımı arttırıcı etkileri sebebiyle yaygın olarak kullanıldığı görülmektedir. Deprem perdelerinin yapıyı güçlendirmedeki büyük etkisine ek olarak yapıdaki dolgu duvarların etkisini de göz önünde bulundurmanın önemli olduğu görülmektedir. Yapının mevcut duvarları gözönüne alınmadan yapılan hesaplarla binanın doğal periyodu, deprem yükü, her bir kolona ve kirişe transfer olan deprem yük miktarı, yapıdaki düzensizlik durumu, yapının deprem karşısında toplam gücü, deprem altında oluşabilecek göçme biçimi gibi önemli parametrelerin değerlendirilmesi eksik olabilmektedir. Bu çalışmada, bölme duvarların matematik modeli oluşturularak hesaplarda ve perde duvar güçlendirilmesi yapılan bir yapıda ne gibi etkileri olduğu incelenmektedir. Mevcut yapıda degişik bölme duvar alanına sahip modeller oluşturularak, deprem yükleri altında yapıya ve eleman hasar durumlarına olan etkisi ve düzensizlik durumları irdelenmiştir. Duvarlar gözönüne alındığında deprem perdeleri ile güçlendirilen bir yapıda etkileri incelenip duvarların hesaplara dahil edilmemiş haliyle karşılaştırmaları yapılmıştır.

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“…It should be evidenced that the aforementioned studies did not consider the influence of infills on the progressive collapse mechanism, although infill-frame interaction effects are well known and have been widely documented for the case of lateral forces by a number of experimental studies and numerical investigations [10][11][12][13][14][15][16][17][18][19]. Only in the last few years the influence of masonry infills on the progressive collapse response has known the first numerical studies regarding masonry infilled steel frames [20,21], and two experimental investigations on infilled RC structures [22,23]. These studies revealed the significant modification of the resisting mechanisms due to the noticeable strength increase and the alternative load pattern which develops.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Robustness of Reinforced Concrete Frame Structures With Masonry Infill Walls

Trapani¹,

Giordano²,

Mancini³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Robustness of frame structures is fundamental to limit progressive collapse of buildings in case of accidental loss of columns. The interest in robustness assessment is growing in recent years especially for reinforced concrete structures, which are commonly analyzed considering the bare frame configuration. This paper presents a numerical study highlighting the influence of masonry infill walls on the robustness of reinforced concrete frame structures. The main geometrical and mechanical parameters identifying an infilled frame (aspect ratio, seismic detailing, lateral constrain degree) are investigated by performing parametric pushdown tests on reference two-bay frames extracted from different types of buildings. The tests are carried out by using a detailed finite element model of the infilled frame. Results show significantly different responses from bare and infilled frames in terms of resistance and displacement capacity under the different conditions tested. In a relevant a number of cases infills have shown to be fundamental to limit or avoid multiple collapses.

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Effects of Masonry Infill Wall on the Performance of RC Frames to Resist Progressive Collapse

Cited by 95 publications

References 17 publications

Enhancement of Interaction Between Infilled Wall and Rc Framed Structure

Enhancement of Interaction Between Infilled Wall and Rc Framed Structure

Deprem Yükleri Altında Betonarme Bir Yurt Binasının Perde Duvar İle Güçlendirilmesinde Mevcut Duvarlarının Etkisinin İncelenmesi

Assessment of Robustness of Reinforced Concrete Frame Structures With Masonry Infill Walls

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