An approximate method to assess the seismic capacity of existing RC buildings

Pdf
Published: Apr 30, 2024
Keywords:
Second-degree pre-earthquake inspection Approximate method Preliminary seismic analysis Non-linear static analysis Building assessment Reinforced concrete
Lamprini Zochiou
University of Patras, Department of Civil Engineering
https://orcid.org/0009-0006-7182-5837
Maria Panagopoulou
University of Patras, Department of Civil Engineering
Stefanos Dritsos
University of Patras, Department of Civil Engineering
Abstract

An approximate method to assess the seismic capacity of existing RC buildings is demonstrated, which is applied to the methodology of the Second-degree pre-earthquake inspection according to its recent first revision (2022). This method is validated by comparing the obtained results with the ones of a non-linear static analysis. In particular, the following points are being examined: (a) the effect of masonry infill walls on the seismic resistance of the building and its failure index, taking into account their construction detailing, (b) the effect of unknown information regarding steel reinforcement amounts and (c) the difference in results when the prior to the revision methodology is applied (version of 2018). The results obtained from the examination, show that the values of the failure indices of a building, for the case of known amounts of reinforcement, provided by the Second-degree pre-earthquake inspection, were in great convergence with the corresponding ones in terms of acceleration obtained by the non-linear static analysis, for reasonable geometry and location of openings on infill walls. When the maximum failure index of the column elements was considered as the main failure index for the non-linear static analysis, differences in results were observed in some cases.

Article Details
  • Section
  • Material Science and Engineering
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Downloads
Download data is not yet available.
References
Damikoukas, S.; Chatzieleftheriou, S.; Lagaros, N.D. First Level Pre- and Post-Earthquake Building Seismic Assessment Protocol Based on Dynamic Characteristics Extracted In Situ. Infrastructures 2022, 7, 115. https:// doi.org/10.3390/ infrastructures7090115.
Dritsos, S. E. (2005). Seismic retrofit of buildings: A Greek perspective. Bulletin of the New Zealand Society for Earthquake Engineering, 38(3), 165–181.https://doi.org/10.5459/bnzsee.38.3.165-181.
EN 1998–1 (2004) Eurocode 8: Design of structures for earthquake resistance, Part 1:General rules, seismic actions and rules for buildings, European Standard, European Committee for Standardization, Brussels, Belgium.
EPPO, Greek code for structural interventions (ΚΑΝ.EPE.), Earthquake Planning and Protection Organization of Greece, Greek Ministry for Environmental Planning and Public Works, Athens, Greece (2017).
EPPO, Second level pre-earthquake assessment of RC buildings, Earthquake Planning and Protection Organization of Greece (EPPO), Greek Ministry for Environmental Planning and Public Works, Athens, Greece (1st Revision 2022).
EPPO, Second level pre-earthquake assessment of RC buildings, Earthquake Planning and Protection Organization of Greece (EPPO), Greek Ministry for Environmental Planning and Public Works, Athens, Greece (2018).
FEMA. P-154: Rapid Visual Screening of Buildings for Potential Seismic Hazards: A Handbook; Federal Emergency Management, Agency: Washington, DC, USA, 2015.
Kappos, A.J. (2013). Seismic Vulnerability and Loss Assessment for Buildings in Greece. In Seismic Vulnerability of Structures, P. Gueguen. (Ed.). https://doi.org/10.1002/9781118603925.ch3
Pitilakis, K., Riga, E., Apostolaki, S. et al. Seismic hazard zonation map and definition of seismic actions for Greece in the context of the ongoing revision of EC8. Bull Earthquake Eng 22, 3753–3792 (2024). https://doi.org/10.1007/s10518-024-01919-8.
Pnevmatikos, N., Gantes, C. (2014). Actively and Semi-actively Controlled Structures Under Seismic Actions: Modeling and Analysis. In: Beer, M., Kougioumtzoglou, I., Patelli, E., Au, IK. (eds) Encyclopedia of Earthquake Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36197-5_146-1.
Vasileiadi M., Dritsos S. An approximate method to assess the seismic capacity of existing RC buildings. 7th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Crete, Greece, 24–26 June (2019).