Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads

The interfaces between masonry infill and reinforced concrete (MI-RC) frames are identified as the weakest regions under lateral loads. Hence, the behavior of such frames under lateral loads can be understood mainly through experimental investigations. The deformation demands induced by horizontal l...

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Main Authors: K. S. Sreekeshava, Hugo Rodrigues, A. S. Arunkumar
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/13/6/1495
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author K. S. Sreekeshava
Hugo Rodrigues
A. S. Arunkumar
author_facet K. S. Sreekeshava
Hugo Rodrigues
A. S. Arunkumar
author_sort K. S. Sreekeshava
collection DOAJ
description The interfaces between masonry infill and reinforced concrete (MI-RC) frames are identified as the weakest regions under lateral loads. Hence, the behavior of such frames under lateral loads can be understood mainly through experimental investigations. The deformation demands induced by horizontal loads on RC frames with infill masonry walls change due to contact losses between the infill masonry and the RC frames. This can be controlled by providing proper reinforcements at the interfaces. In the present experimental investigation, three half-scaled models subjected to reversed cyclic lateral in-plane loads were tested. In detail, the specimens considered are the MI-RC frame model, an MI-RC frame with geo-fabric reinforcement at the interface and an MI-RC frame with geo-fabric reinforcement at interfaces with an open ground story. The models were subjected to reversed cyclic lateral in-plane loads, and the post-yield responses of the models with respect to stiffness degradation, drift, energy dissipation, ductility and failure mode have been discussed.
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spelling doaj.art-887dd807dc544526a222a963b6d062bc2023-11-18T09:39:04ZengMDPI AGBuildings2075-53092023-06-01136149510.3390/buildings13061495Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane LoadsK. S. Sreekeshava0Hugo Rodrigues1A. S. Arunkumar2Jyothy Institute of Technology, Affiliated to Visvesvaraya Technological University, Belagavi 590018, IndiaRISCO, Civil Engineering Department, University of Aveiro, Campus of Santiago, 3810-193 Aveiro, PortugalBMS College of Engineering, Affiliated to Visvesvaraya Technological University, Belagavi 590018, IndiaThe interfaces between masonry infill and reinforced concrete (MI-RC) frames are identified as the weakest regions under lateral loads. Hence, the behavior of such frames under lateral loads can be understood mainly through experimental investigations. The deformation demands induced by horizontal loads on RC frames with infill masonry walls change due to contact losses between the infill masonry and the RC frames. This can be controlled by providing proper reinforcements at the interfaces. In the present experimental investigation, three half-scaled models subjected to reversed cyclic lateral in-plane loads were tested. In detail, the specimens considered are the MI-RC frame model, an MI-RC frame with geo-fabric reinforcement at the interface and an MI-RC frame with geo-fabric reinforcement at interfaces with an open ground story. The models were subjected to reversed cyclic lateral in-plane loads, and the post-yield responses of the models with respect to stiffness degradation, drift, energy dissipation, ductility and failure mode have been discussed.https://www.mdpi.com/2075-5309/13/6/1495geo-fabricsstiffnessductilityenergy dissipationlateral driftstrengthening
spellingShingle K. S. Sreekeshava
Hugo Rodrigues
A. S. Arunkumar
Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
Buildings
geo-fabrics
stiffness
ductility
energy dissipation
lateral drift
strengthening
title Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
title_full Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
title_fullStr Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
title_full_unstemmed Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
title_short Response of Masonry-Infilled Reinforced Concrete Frames Strengthened at Interfaces with Geo-Fabric under In-Plane Loads
title_sort response of masonry infilled reinforced concrete frames strengthened at interfaces with geo fabric under in plane loads
topic geo-fabrics
stiffness
ductility
energy dissipation
lateral drift
strengthening
url https://www.mdpi.com/2075-5309/13/6/1495
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AT asarunkumar responseofmasonryinfilledreinforcedconcreteframesstrengthenedatinterfaceswithgeofabricunderinplaneloads