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Article

On the Modeling and Analysis of Brittle Failure in Existing R/C Structures Due to Seismic Loads

1
Department of Civil Engineering, Faculty of Engineering, Aristotle University, GR 54124 Thessaloniki, Greece
2
Department of Civil Engineering, The Lassonde Faculty of Engineering, York University, Toronto, ON M3J 1P3, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Maria Favvata
Appl. Sci. 2022, 12(3), 1602; https://doi.org/10.3390/app12031602
Received: 29 December 2021 / Revised: 30 January 2022 / Accepted: 31 January 2022 / Published: 2 February 2022
(This article belongs to the Special Issue Seismic Assessment and Design of Structures)
Brittle failure is often observed in older reinforced concrete (R/C) buildings that have been designed prior to the 1980s following an earthquake event. Since this has ramifications on any subsequent repair protocol, it is important to quantify the remaining strength capacity for this class of building to determine a retrofit strategy. Following along these lines, an analytical-numerical methodology is presented for use as a third-tier seismic assessment which is based on a previously developed second-tier strength assessment criterion coming from a procedure known as Rapid Seismic Assessment (RSA). The assessment framework is performance-based, aiming to determine whether estimated local drift demands can be tolerated without failure developing along the load resistance path of substandard R/C buildings. This enables the development of guidelines for modeling all possible strength mechanisms that occur in the structural system of substandard R/C buildings. An application example using data provided by a benchmark experiment involving a full-scale R/C building helps to illustrate and then validate the proposed modeling procedures and establish their accuracy and efficiency for use by practicing engineers. View Full-Text
Keywords: reinforced concrete; substandard buildings; brittle failure; earthquake loads; rapid seismic assessment reinforced concrete; substandard buildings; brittle failure; earthquake loads; rapid seismic assessment
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MDPI and ACS Style

Pardalopoulos, S.I.; Pantazopoulou, S.J.; Manolis, G.D. On the Modeling and Analysis of Brittle Failure in Existing R/C Structures Due to Seismic Loads. Appl. Sci. 2022, 12, 1602. https://doi.org/10.3390/app12031602

AMA Style

Pardalopoulos SI, Pantazopoulou SJ, Manolis GD. On the Modeling and Analysis of Brittle Failure in Existing R/C Structures Due to Seismic Loads. Applied Sciences. 2022; 12(3):1602. https://doi.org/10.3390/app12031602

Chicago/Turabian Style

Pardalopoulos, Stylianos I., Stavroula J. Pantazopoulou, and George D. Manolis. 2022. "On the Modeling and Analysis of Brittle Failure in Existing R/C Structures Due to Seismic Loads" Applied Sciences 12, no. 3: 1602. https://doi.org/10.3390/app12031602

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