Evaluation of Seismic Vulnerability of Masonry Buildings without Ties Using the RISK-UE Method, Case Study of Kermanshah City

Document Type : Research Article

Authors

Civil Engineering Department, Razi University, Kermanshah, Iran

Abstract

Investigating the seismic vulnerability of masonry buildings without either horizontal or vertical ties, are important due to their number of usage more specifically in old parts of cities. Kermanshah, as a cultural center of west of Iran and 9th most populated city of Iran, hosts large number of masonry buildings. Besides, the city is located in the seismically active region of Zagros. Hence, it is crucial for urban planning of the city to study the seismic vulnerability of these buildings. Three major types of masonry buildings, which are brick walls with steel beam, brick walls with wooden beam, and adobe buildings are identified and their seismic vulnerabilities are evaluated using the RISK-UE method. The vulnerability of these buildings in terms of damage level as well as the human vulnerability rate estimated from the severity of the demolition of these buildings for each area of the city, assuming that 80% of the people are in the roofed places during the earthquake scenarios. The results show that under the earthquake scenario with return period of 475 years, more than 12% of brick walls with wooden beam, 11% of brick walls with steel beam, and 29% of adobe buildings, may experience severe structural damage or complete destruction. Furthermore, under the earthquake scenario with return period of 2475 years, the level of severe structural damage or complete destruction is expected for more than 42% of brick walls with wooden beam, 39% of brick walls with steel beam, and 66% of adobe buildings.

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References

[1] N. Lantada, L. Pujades, A. Barbat, , “Vulnerability index and capacity spectrum based methods for urban seismic risk evaluation. A comparison”, Natural Hazards, 51 (2009) 501–524.
[2] Z.M. Milutinovic, G.S. Trendafiloski, “An advanced approach for earthquake risk scenarios with applications to different European towns”, WP-4: vulnerability of current buildings. Risk-UE Project, European Commission, (2003).
[3] T. Rashed, J. Weeks, “Assessing Vulnerability to Earthquake Hazard Through Spatial Multicriteria Analysis of Urban Areas”, International Journal of Geographic Information Science, 17(6) (2003) 547-576.
[4] P. Lestuzzi, S. Podesta, C. Luchini, A. Garofano, D. Kazantzidou-Firtinidou, C. Bozzano, P. Bischof, A. Haffter, D. Rouiller, “Seismic vulnerability assessment at urban scale for two typical Swiss cities using Risk-UE methodology”, Natural Hazards, 84 (2016) 249–269.
[5] Japan International Cooperation Agency (JICA), “The Study on Seismic Microzoning of the Greater Tehran Area in the Islamic Republic of Iran”, Final report to the Government of the Islamic Republic of Iran. Tokyo, Japan (2000) (in persian).
[6] M. Zahrae, L. Ershadi, “Investigation of Seismic Vulnerability of Qazvin Buildings”, Technical University Press, 33 (2005) 287-297 (in persian).
[7] A. Zangi Abadi, J. Mohammadi, H. Safae, S. Rahmati, “Analysis of urban housing Vulnerability to earthquake (case study of Isfahan city)”, Geography and Development, 12 (2008) 67-79 (in persian).
[8] M. Ahad Nejad Rooshti, M. Gharakhlo, K. Ziyari, “Modeling Urban Vulnerability to Earthquake Using Analytical Hierarchy Process in Geographic Information System Environment”, Geography and Development Quarterly, (2010) 174-200.
[9] M. Farajzadeh Asl, M. Ahad Nejad, J. Amini, “Evaluation of urban housing vulnerability to earthquake (case study, Tehran municipal district 9)”, Urban and Regional Studies and Research, 3(9) (2011).
[10] Risk Assessment at Provincial Level (for Kermanshah, Qazvin, Zanjan and Hamadan Provinces), Earthquake Emergency Reconstruction Project Loan #: 4697-IRN. (in persian).
[11] The Population and housing census, Statistical Center of Iran (2011) (in persian).
[12] S. Giovinazzi, S. Lagomarsino, S. Pampanin, “Vulnerability Methods and Damage Scenario for Seismic Ris; Analysis as Support to Retrofit Strategies: a European Perspective”, NZSEE Conference (2005).
[13] Risk-UE, “An advanced approach to earthquake risk scenarios with applications to different European towns, Projet europe ´en, EVK4-CT-2000-00014, (2003).
AUT Journal of Civil Engineering
Volume 2, Issue 2
December 2018
Pages 143-152

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