THE 30TH OF OCTOBER SAMOS-GREECE EARTHQUAKE. ISSUES RELEVANT TO THE PROTECTION FROM STRUCTURAL DAMAGE CAUSED BY STRONG EARTHQUAKE GROUND MOTIONS

George C. Manos

Abstract


Introduction: This is a report of issues relevant to the protection from structural damage that is sustained by various types of structures when subjected to strong earthquake ground motions. Purpose of the study: This study became relevant due to the recent intense earthquake activity to the Greek island of Samos which left its impact on numerous structures of various types. Results and discussion: Initially, a summary is presented discussing the effort that has been made in Greece trying to confront with the consequences of this extreme loading condition to the built environment. Next, a summary report is given for certain types of structures which suffered the most. They include old Christian Greek Orthodox churches as well as other buildings on conservation status. The sustained damage is discussed together with a brief numerical study that tries to simulate numerically the observed behavior. Finally, a brief discussion with relevant conclusions are presented as a result of the observed damage combined with similar observations and studies made during the last decades.

Keywords


Earthquake structural damage, Christian churches, Cultural heritage, Samos island, Unreinforced masonry structures, Reinforced concrete structures, Numerical simulations.

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References


Ambraseys, N.N. et.al. (1996). Prediction of Horizontal Response Spectra in Europe. Earthquake Engineering and Structural Dynamics, 25, pp. 371-400.

Ambraseys, N.N. and Simpson A. (1996). Prediction of Vertical Response Spectra in Europe. Earthquake Engineering and Structural Dynamics, 25, pp. 401-412.

Cerone, M., Viscovic, A., Carriero, A., Sabbadini, F., Capparela, L. (2001). The Soil Stiffness Influence and the Earthquake Effects on the Colosseum in Roma. In 2nd Int. Conf. on Studies in Ancient Structures, pp. 421-426.

Croci, G. (1998). The Conservation and Structural Restoration of Architectural Heritage. Published by WIT Press (UK). 272 p.

EAK (2000). Greek seismic Code.

EN 1996-1-1:2005 (2005). Eurocode 6: Design of Masonry Structures. Part 1-1: General Rules for Building. Rules for Reinforced and Unreinforced Masonry.

EN 1998-1/2005-05-12 (2005). Eurocode 8: Design of structures for earthquake resistance. Part 1: General rules, seismic actions and rules for buildings.

Lagomarsino, S. (2011). Damage assessment of churches after L’Aquila earthquake. Bulletin of Earthquake Eng. DOI: 10.1007/s10518-011-9307-x.

Limoge Schraen, C., Giry, C., Desprez, C., Ragueneau, F. (2015). Tools for A Large-scale Seismic Assessment Method of Masonry Cultural Heritage. WIT Transactions on The Built Environment. 153. pp. 733-745. DOI: 10.2495/STR150611

Manos, G.C. et.al. (1997). Correlation of the Observed Earthquake Performance of the Church of St. Constantinosin Konzani-Greece with Numerical Prediction. WIT Transactions on the Built Environment, 26. pp. 309-320. DOI: 10.2495/STR970301.

Manos, G.C. (2011). Consequences on the urban environment in Greece related to the recent intense earthquake activity. Journal of Civil Engineering and Architecture, 5(12), pp. 1065–1090.

Manos, G.C. (2016). The Seismic Behaviour of Stone Masonry Greek Orthodox Churches. Architecture and Engineering, 1(1), pp. 40-53.

Manos, G.C. and Karamitsios, N. (2013). Numerical simulation of the dynamic and earthquake behavior of Greek post-Byzantine churches with and without base isolation. In ECCOMAS Thematic Conference - COMPDYN 2011: 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering: An IACM Special Interest Conference.

Manos, G.C. and Katakalos, K. (2013). The Use of Fiber Reinforced Plastic for The Repair and Strengthening of Existing Reinforced Concrete Structural Elements Damaged by Earthquakes. Chapter 3. Fiber reinforced polymers-The technology applied for concrete repair. DOI: 10.5772/51326.

Manos, G.C. and Kotoulas, L. (2019). Unreinforced Stone Masonry Churches under Gravitational and Earthquake Actions. In 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering Methods in Structural Dynamics and Earthquake Engineering. DOI: 10.7712/120119.6922.19344.

Manos, G.C., Kotoulas, L., and Kozikopoulos, E. (2019). Evaluation of the Performance of Unreinforced Stone Masonry Greek “Basilica” Churches When Subjected to Seismic Forces and Foundation Settlement. Buildings, 9. Available at: https://www.mdpi.com/2075-5309/9/5/106/htm [Date accessed 09.12.2020].

Manos, G.C. and Kozikopoulos, E. (2015). The Dynamic and Earthquake Response of Basilica Churches in Kefalonia-Greece including Soil-Foundation Deformability and Wall Detachment. In 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Crete Island, Greece, 25–27 May 2015. pp. 460-486.

Manos, G.C. and Papanaoum, E. (2009). Earthquake Behaviour Of A Reinforced Concrete Building Constructed In 1933 Before and After Its Repair. WIT Transactions on The Built Environment, 109. pp. 465-475. DOI: 10.2495/STR090411.

Manos, G.C., Soulis, V., Diagouma, A. (2008). Numerical Investigation of the behavior of the church of Agia Triada, Drakotrypa, Greece. Journal in Advances in Engineering Software, 39. pp. 284-300.

Manos, G.C., Soulis, V. J and Karamitsios, N. (2012). The Performance of Post-Byzantine churches during the Kozani-1995 Earthquake – Numerical Investigation of their Dynamic and Earthquake Behaviour. 15WCEE. Available at: http://www.iitk.ac.in/nicee/wcee/article/WCEE2012_2067.pdf [Date accessed 09.12.2020].

Modena, C., Casarin, F., da Porto, F., Munari, M. (2010). L’Aquila 6th April 2009 Earthquake: Emergency and Post-emergency Activities on Cultural Heritage Buildings. In: Garevski M., Ansal A. (eds) Earthquake Engineering in Europe. Geotechnical, Geological, and Earthquake Engineering, vol 17. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9544-2_20.

Organization of Earthquake Planning and Protection of Greece (ΟASP) (2001). Guidelines for Level - A earthquake performance checking of buildings of public occupancy, Athens.

Organization of Earthquake Planning and Protection of Greece (ΟΑSP) (2011). Guidelines for Retrofitting in Reinforced Concrete Buildings, Athens.

Papazachos, B.C. (1990). Seismicity of the Aegean and the Surrounding Area. Tectonophisics, 178, pp, 287-308.

Paz, M. (1994). International Handbook of Earthquake Engineering. Chapter 17. Codes, Programs and Examples by G.C. Manos. New York: Chapman & Hall. 545 p.

Preliminary report, October (2020). The Earthquake of Oct. 30, 2020, M6.7 (11:51GMT) North of Samos Island (Greece): Observed strong ground motion on Samos island. Institute of Earthquake Engineering and Engineering Seismilogy (ITSAK).

Preliminary report, November (2020). The Samos 30th October 2020 earthquake. Hellenic Society of Earthquake Engineering, ETAM, -report- Samos-2020 earthquake.

Provisions of Greek Seismic Code with revisions of seismic zonation (2003). Government Gazette, 1154, Δ17α /115/9/ΦΝ275, Athens, 12 August.

Soulis, V. J. and · Manos, G. C. (2019). Numerical Simulation and Failure Analysis of St. Konstantinos Church, after the Kozani Earthquake. International Journal of Civil Engineering, 17. DOI: 10.1007/s40999-018-0345-5.




DOI: https://doi.org/10.23968/2500-0055-2020-5-4-03-17

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ISSN: 2500-0055