Parametric pushover curve model for seismic performance assessment of building stock

Fazarinc, Neja (author), Babič, Anže (author), Dolšek, Matjaž (author)

An effective assessment of the seismic risk of building stock is important for informing stakeholders and developing strategies to improve community seismic resilience. To address this need, a parametric pushover curve model for seismic performance assessment of building stock is introduced. The model employs twelve parameters for estimating the trilinear pushover curve. The models of these parameters are developed specifically for reinforced concrete and masonry buildings in Slovenia by focusing on the low level of knowledge about the building. Consequently, it can be used for preliminary studies of seismic performance assessment of building stock to raise awareness about seismic risk. To evaluate its efficacy, the model was applied to assess the seismic performance of the University of Ljubljana’s building stock. Because of uncertainties arising from the lack of knowledge about the buildings and the associated assumptions, the results were interpreted relative to those obtained for a new building stock scenario. The case study revealed that the seismic capacity in terms of the limit state peak ground acceleration of the building stock is only half of what would be expected in the new building stock scenario, highlighting a significant seismic risk. These findings emphasise the need for systematic efforts to enhance the seismic safety of the building stock under consideration. Further research is recommended to explore the model's accuracy concerning the level of knowledge about the building, which will contribute to a better understanding of its applicability.

• Language: English
• Keywords: probabilistic seismic hazard analysis, non-ergodic ground-motion model, Gaussian process regression, pushover curve, parametric model, building stock, seismic performance assessment, building knowledge, reinforced concrete buildings, masonry buildings
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: Str. 1425–1449
• Numbering: Vol. 22, iss. 3
• PID: 20.500.12556/RUL-154833
• UDC: 624.042.7
• ISSN on article: 1570-761X
• DOI: 10.1007/s10518-023-01821-9
• COBISS.SI-ID: 182184451
• Publication date in RUL: 05.03.2024

Record is a part of a journal

• Title: Bulletin of earthquake engineering
• Publisher: Springer Nature
• ISSN: 1570-761X
• COBISS.SI-ID: 897639

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: verjetnostna analiza potresne nevarnosti, neergodični model gibanja tal, regresija z Gaussovimi procesi

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0185
• Name: Potresno inženirstvo