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Article

Seismic Fragility Curves of RC Buildings Subjected to Aging

by
Spyridon Diamantopoulos
1,
Zeinep Achmet
1,
Sotiria Stefanidou
2,
Olga Markogiannaki
2 and
Michalis Fragiadakis
1,*
1
School of Civil Engineering, National Technical University of Athens, 9, Iroon Polytechniou St., 15780 Athens, Greece
2
Competence Center SURE, 50100 Kozani, Greece
*
Author to whom correspondence should be addressed.
GeoHazards 2024, 5(1), 192-208; https://doi.org/10.3390/geohazards5010010
Submission received: 26 January 2024 / Revised: 15 February 2024 / Accepted: 18 February 2024 / Published: 27 February 2024
(This article belongs to the Topic Natural Hazards and Environmental Challenges in the Anthropocene Age)
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Abstract

A large number of existing reinforced concrete (RC) buildings have surpassed their anticipated service life and show signs of degradation due to aging; this degradation is a function of the construction practices adopted in the past as well as environmental conditions. This paper discusses seismic fragility and the risk assessment of RC structures, emphasizing the impact of corrosion due to concrete aging and the associated deterioration mechanisms. The literature on this topic is critically reviewed, and a methodology for studying the seismic fragility of deteriorated RC buildings is proposed. As a case study, a four-story RC building designed according to contemporary code provisions is examined. The investigation encompasses the derivation of fragility curves, considering critical parameters such as the corrosion rate, the initiation time, and the cover depth. The proposed approach enables the evaluation and quantification of the impact of corrosion mechanisms on the seismic performance of buildings.
Keywords: reinforced concrete; aging; corrosion; fragility; durability; seismic reinforced concrete; aging; corrosion; fragility; durability; seismic

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MDPI and ACS Style

Diamantopoulos, S.; Achmet, Z.; Stefanidou, S.; Markogiannaki, O.; Fragiadakis, M. Seismic Fragility Curves of RC Buildings Subjected to Aging. GeoHazards 2024, 5, 192-208. https://doi.org/10.3390/geohazards5010010

AMA Style

Diamantopoulos S, Achmet Z, Stefanidou S, Markogiannaki O, Fragiadakis M. Seismic Fragility Curves of RC Buildings Subjected to Aging. GeoHazards. 2024; 5(1):192-208. https://doi.org/10.3390/geohazards5010010

Chicago/Turabian Style

Diamantopoulos, Spyridon, Zeinep Achmet, Sotiria Stefanidou, Olga Markogiannaki, and Michalis Fragiadakis. 2024. "Seismic Fragility Curves of RC Buildings Subjected to Aging" GeoHazards 5, no. 1: 192-208. https://doi.org/10.3390/geohazards5010010

APA Style

Diamantopoulos, S., Achmet, Z., Stefanidou, S., Markogiannaki, O., & Fragiadakis, M. (2024). Seismic Fragility Curves of RC Buildings Subjected to Aging. GeoHazards, 5(1), 192-208. https://doi.org/10.3390/geohazards5010010

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