Date

2005-06-01

Author

Yakut, Ahmet
Bakır, Bahadır Sadık
Yilmaz, MT

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Adapazari was the scene of spectacular structural damage as well as widespread foundation displacement that occurred in the city during the devastating earthquake of August 17, 1999. The damage patterns observed in Adapazari were quite peculiar, so these are re-examined in an effort to answer the question of whether they are indicative of a consistent trend in terms of the building attributes and/or site conditions. For this purpose two databases comprising buildings surveyed in Adapazari after the earthquake have been re-evaluated. The first data set included buildings that had collapsed fully; hence no complete data on the as-built properties have been assembled. Their examination was necessarily a desk study conducted from the design blueprints of the individual buildings that no longer existed. The second source was a larger database comprising buildings that had experienced various levels of damage and examined using conventional evaluation procedures. All buildings were rated from the viewpoint of conventional seismic performance using accepted parameters to confirm the observed damage. An examination based solely on structural attributes leads us to believe that building collapses observed in Adapazan are perhaps too involved to reduce to a few simple deficiency attributes. The site effects seem to have played a major role in the observed damage, because conflicting trends of structural attributes and the actual damage were established. A companion paper focuses on the influence of site effects on the observed building damage.

Subject Keywords

Kocaeli earthquake of 1999, Damage assessment, Damage survey, Site effects, Seismic evaluation

URI

https://hdl.handle.net/11511/33081

Collections

Department of Civil Engineering, Article