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Open AccessArticle

Effect of Lintel Beam on Seismic Response of Reinforced Concrete Buildings with Semi-Interlocked and Unreinforced Brick Masonry Infills

1
Department of Civil Engineering, Indian Institute of Technology (IIT-BHU), Varanasi 221 005, India
2
Department of Civil Engineering, University of the Peloponnese, GR-26334 Patras, Greece
3
Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong
*
Author to whom correspondence should be addressed.
Received: 22 November 2020 / Revised: 28 December 2020 / Accepted: 29 December 2020 / Published: 1 January 2021
(This article belongs to the Special Issue Advances in Structural Dynamics and Earthquake Engineering)
The primary focus of this study is to evaluate the nonlinear response of reinforced concrete (RC) frames with two types of brick infills viz., unreinforced brick masonry infill (URM) and semi-interlocked brick masonry infill (SIM) together with lintel beams, subjected to seismic loads. The seismic response is quantified in terms of response reduction factor and base shear. Infill walls are modeled using double strut nonlinear cyclic element. Nonlinear static adaptive pushover analysis is performed in the finite element program SeismoStruct. The response reduction factor (R) is computed from adaptive pushover analysis and performance for all models is obtained. The results showed that the average R factor of the RC framed structure with semi-interlocked masonry (SIM) is 1.31 times higher than the RC frame with unreinforced masonry (URM) infill. The R value of the bare frame with the lintel beam is found to be less than the corresponding value recommended in the Indian Standard Code. The results obtained in this study highlight that if the impacts of lintel beams and various brick infill scenarios are considered in the RC frames then the R values used for the design of RC frame buildings with infills would be underestimated (i.e., the evaluated R values are greater than the R values used for the design purpose). View Full-Text
Keywords: brick masonry infill; semi-interlocked brick masonry infill; response reduction factor; base shear; lintel beam; RC frame brick masonry infill; semi-interlocked brick masonry infill; response reduction factor; base shear; lintel beam; RC frame
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MDPI and ACS Style

Shendkar, M.R.; Kontoni, D.-P.N.; Mandal, S.; Maiti, P.R.; Gautam, D. Effect of Lintel Beam on Seismic Response of Reinforced Concrete Buildings with Semi-Interlocked and Unreinforced Brick Masonry Infills. Infrastructures 2021, 6, 6. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6010006

AMA Style

Shendkar MR, Kontoni D-PN, Mandal S, Maiti PR, Gautam D. Effect of Lintel Beam on Seismic Response of Reinforced Concrete Buildings with Semi-Interlocked and Unreinforced Brick Masonry Infills. Infrastructures. 2021; 6(1):6. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6010006

Chicago/Turabian Style

Shendkar, Mangeshkumar R.; Kontoni, Denise-Penelope N.; Mandal, Sasankasekhar; Maiti, Pabitra R.; Gautam, Dipendra. 2021. "Effect of Lintel Beam on Seismic Response of Reinforced Concrete Buildings with Semi-Interlocked and Unreinforced Brick Masonry Infills" Infrastructures 6, no. 1: 6. https://0-doi-org.brum.beds.ac.uk/10.3390/infrastructures6010006

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