Seismic Performance Enhancement of Unreinforced Brick Masonry Buildings by Retrofitting with Reinforced Concrete Bands: Full Scale Experiments
Publication: Journal of Structural Engineering
Volume 148, Issue 12
Abstract
This study was aimed to conduct a thorough experimental investigation on the seismic performance of semiconfined unreinforced brick masonry (SC-URBM) building as a structural topology. Experiments were conducted on two identical full-scale single-story brick masonry buildings: one is completely unreinforced (URBM), and the other is retrofitted with semiconfining horizontal and vertical reinforced concrete (RC) elements (SC-URBM). Both buildings were subjected to FEMA 461 specified reverse slow-cyclic quasi-static loading protocol to quantify the improved seismic performance of the SC-URBM building compared to the URBM building. From the experimental results, ductility capacity, load carrying capacity, and energy dissipation capacity were evaluated, along with important observations such as failure mechanisms from prepeak to postpeak regimes. The results and observation from the experiments demonstrate that the semiconfining elements significantly enhance the energy dissipation capacity and ductility of the retrofitted SC-URBM building without compromising its strength, thereby implying the superior performance of such buildings in comparison to URBM buildings.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors gratefully acknowledge and appreciate the logistic support provided by the Structural Engineering Laboratory, IIT Kanpur, for smooth conduction of the experiment.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 12 • December 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Sep 29, 2021
Accepted: May 13, 2022
Published online: Sep 23, 2022
Published in print: Dec 1, 2022
Discussion open until: Feb 23, 2023
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