Effect of out-of-plane behavior on seismic fragility of masonry buildings in Turkey


Ceran H. B. , ERBERİK M. A.

BULLETIN OF EARTHQUAKE ENGINEERING, vol.11, no.5, pp.1775-1795, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11 Issue: 5
  • Publication Date: 2013
  • Doi Number: 10.1007/s10518-013-9449-0
  • Title of Journal : BULLETIN OF EARTHQUAKE ENGINEERING
  • Page Numbers: pp.1775-1795
  • Keywords: Unreinforced masonry, In-plane response, Out-of-plane response, Fragility curve, Damage estimation, AVERAGE HORIZONTAL COMPONENT, GROUND-MOTION, VULNERABILITY

Abstract

This study focuses on the evaluation of seismic safety of unreinforced masonry buildings in Turkey by using fragility curves generated for two behavior modes of load bearing walls: in-plane and out-of-plane. During generation of fragility curves, a force-based approach has been used. There exist two limit states in terms of base shear strength for in-plane behavior mode and flexural strength for out-of-plane behavior mode. To assess the seismic vulnerability of unreinforced masonry buildings in Turkey, fragility curves generated for in-plane behavior were verified by the observed damage during the 1995 Dinar (Turkey) earthquake and fragility curves generated for out-of-plane behavior were verified by the observed damage during the 2010 ElazA +/- AY (Turkey) earthquake. The verification results reveal that the proposed fragility-based procedure can provide an alternative for the seismic safety evaluation of unreinforced masonry buildings in Turkey. Using this procedure, it becomes possible to investigate a large population of masonry buildings located in regions of high seismic risk in a short period of time. The obtained results are valuable in the sense that they can be used as a database during the development of strategies for pre-earthquake planning and risk mitigation for earthquake prone regions of Turkey.