Innovative EC8-compliant solutions for selection of the optimum retrofitting scheme of buildings with special characteristics

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Innovative EC8-compliant solutions for selection of the optimum retrofitting scheme of buildings with special characteristics. / Skalomenos, Konstantinos A.; Morfidis, Konstantinos E.; Lekidis, Vassilios A.; Anagnostopoulos, Stavros A.

In: Earthquake Spectra, 24.06.2021.

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@article{818bfe37f9c14dab84d6f6423312a248,
title = "Innovative EC8-compliant solutions for selection of the optimum retrofitting scheme of buildings with special characteristics",
abstract = "This article presents the seismic assessment and retrofit design of an existing old building in Greece of great regional importance. The Building is the “Administration building of Kalamata” located in the city of Kalamata, capital of the Messinia Prefecture. The Building, the largest in the city, is a seven-floor reinforced concrete (r/c) structure with a basement built in 1974. The seismic assessment procedure is based on the provisions of the EN 1998-3 code and the Greek code for structural interventions “KAN.EPE.,” introducing several novelties that give solutions to difficult practical problems with respect to the modeling, the analysis methods, and performance evaluation framework. The article presents details of the Building{\textquoteright}s modeling, description of the analyses, and the corresponding results, as well as the most efficient retrofitting schemes that fulfill the safety demands (i.e. performance level B or “Life safety” and performance level C or “Collapse prevention” according to KAN.EPE.), considering cost and minimal disturbance both for the superstructure and foundation interventions. While considering the various intervention solutions, it proceeds with new simplified ways that optimize the proposed solution. As such, it can be used as a paradigm for finding clever, practical, and at the same time economical solutions. An interesting characteristic of the Building is that it has been strengthened already after the damaging earthquake of 1986, but the new usage requirements raised questions about the adequacy of that earlier strengthening. Last, but not least, it must be mentioned that this building is unique in the sense that the main earthquake record (a strong motion accelerogram) obtained during the damaging 1986 Kalamata earthquake was at its basement. This record is also used for the assessment.",
keywords = "chord rotation, Existing old r/c buildings, nonlinear analysis, r/c jackets and walls, seismic assessment, seismic retrofit",
author = "Skalomenos, {Konstantinos A.} and Morfidis, {Konstantinos E.} and Lekidis, {Vassilios A.} and Anagnostopoulos, {Stavros A.}",
note = "Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was funded by the prefecture of Messinia in Greece and was carried out under the guidance and supervision of the last author. Publisher Copyright: {\textcopyright} The Author(s) 2021.",
year = "2021",
month = jun,
day = "24",
doi = "10.1177/87552930211023519",
language = "English",
journal = "Earthquake Spectra",
issn = "8755-2930",
publisher = "Earthquake Engineering Research Institute",

}

RIS

TY - JOUR

T1 - Innovative EC8-compliant solutions for selection of the optimum retrofitting scheme of buildings with special characteristics

AU - Skalomenos, Konstantinos A.

AU - Morfidis, Konstantinos E.

AU - Lekidis, Vassilios A.

AU - Anagnostopoulos, Stavros A.

N1 - Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was funded by the prefecture of Messinia in Greece and was carried out under the guidance and supervision of the last author. Publisher Copyright: © The Author(s) 2021.

PY - 2021/6/24

Y1 - 2021/6/24

N2 - This article presents the seismic assessment and retrofit design of an existing old building in Greece of great regional importance. The Building is the “Administration building of Kalamata” located in the city of Kalamata, capital of the Messinia Prefecture. The Building, the largest in the city, is a seven-floor reinforced concrete (r/c) structure with a basement built in 1974. The seismic assessment procedure is based on the provisions of the EN 1998-3 code and the Greek code for structural interventions “KAN.EPE.,” introducing several novelties that give solutions to difficult practical problems with respect to the modeling, the analysis methods, and performance evaluation framework. The article presents details of the Building’s modeling, description of the analyses, and the corresponding results, as well as the most efficient retrofitting schemes that fulfill the safety demands (i.e. performance level B or “Life safety” and performance level C or “Collapse prevention” according to KAN.EPE.), considering cost and minimal disturbance both for the superstructure and foundation interventions. While considering the various intervention solutions, it proceeds with new simplified ways that optimize the proposed solution. As such, it can be used as a paradigm for finding clever, practical, and at the same time economical solutions. An interesting characteristic of the Building is that it has been strengthened already after the damaging earthquake of 1986, but the new usage requirements raised questions about the adequacy of that earlier strengthening. Last, but not least, it must be mentioned that this building is unique in the sense that the main earthquake record (a strong motion accelerogram) obtained during the damaging 1986 Kalamata earthquake was at its basement. This record is also used for the assessment.

AB - This article presents the seismic assessment and retrofit design of an existing old building in Greece of great regional importance. The Building is the “Administration building of Kalamata” located in the city of Kalamata, capital of the Messinia Prefecture. The Building, the largest in the city, is a seven-floor reinforced concrete (r/c) structure with a basement built in 1974. The seismic assessment procedure is based on the provisions of the EN 1998-3 code and the Greek code for structural interventions “KAN.EPE.,” introducing several novelties that give solutions to difficult practical problems with respect to the modeling, the analysis methods, and performance evaluation framework. The article presents details of the Building’s modeling, description of the analyses, and the corresponding results, as well as the most efficient retrofitting schemes that fulfill the safety demands (i.e. performance level B or “Life safety” and performance level C or “Collapse prevention” according to KAN.EPE.), considering cost and minimal disturbance both for the superstructure and foundation interventions. While considering the various intervention solutions, it proceeds with new simplified ways that optimize the proposed solution. As such, it can be used as a paradigm for finding clever, practical, and at the same time economical solutions. An interesting characteristic of the Building is that it has been strengthened already after the damaging earthquake of 1986, but the new usage requirements raised questions about the adequacy of that earlier strengthening. Last, but not least, it must be mentioned that this building is unique in the sense that the main earthquake record (a strong motion accelerogram) obtained during the damaging 1986 Kalamata earthquake was at its basement. This record is also used for the assessment.

KW - chord rotation

KW - Existing old r/c buildings

KW - nonlinear analysis

KW - r/c jackets and walls

KW - seismic assessment

KW - seismic retrofit

UR - http://www.scopus.com/inward/record.url?scp=85108826158&partnerID=8YFLogxK

U2 - 10.1177/87552930211023519

DO - 10.1177/87552930211023519

M3 - Article

AN - SCOPUS:85108826158

JO - Earthquake Spectra

JF - Earthquake Spectra

SN - 8755-2930

ER -