Ground Failure and Building Performance in Adapazari, Turkey

Project Description and Objectives
The August 17, 1999 Kocaeli, Turkey earthquake (Mw = 7.4) provides an exceptional opportunity to investigate both the effects of local soil conditions on damage patterns under strong shaking conditions, and the performance of building foundations in areas that experienced ground failure. The severity of ground failure and structural damage in the City of Adapazari was especially dramatic.  It triggered a series of field surveys from a number of reconnaissance teams, including the US-Turkey NSF geotechnical team.  These preliminary reconnaissance efforts now warrant follow-up documentation to record key observations of building and ground performance.  Ground failure in Adapazari resulted principally from soil liquefaction and ground softening.  Hence, this study will advance the profession’s understanding of these phenomena and their effects on structures. 
The primary goal of this study is to develop well-documented case histories of building performance at sites undergoing severe ground failure, so that the profession can use these case histories to advance our understanding of these phenomena and enhance our ability to numerically simulate the associated physical processes.  A parallel goal is to provide a comprehensive record of observed building and ground performance data in Adapazari so that the lessons learned from specific case histories can be generalized.

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