Seismic Drift Response of Precast Concrete Building Structures Located in Earthquake-Prone Regions in Turkey Considering Nonlinear Analysis Procedures

Abstract eng:
Industrial structures are commonly built as precast concrete structures both in Turkey and the World. Two major earthquakes, namely Marmara Earthquake (August 17th, 1999) and Duzce Earthquake (November 12th, 1999), occurred subsequently in Turkey. In the aftermath of these earthquakes, excessive levels of damage were observed at precast concrete structures especially in the city of Izmit and its vicinity. The modes of damage were mainly destruction at column-girder connections or column failures. The observations emphasize that there is a need for investigation of seismic behaviour of precast concrete structures located at this highly earthquake-prone region. In this study, seismic drift response of precast concrete building structures representative of the current design practice in Turkey are examined. The buildings are designed considering the current seismic code in Turkey which refer to performance based design. They are subjected to ground motions from the recent earthquakes in Turkey. Seismic drift response and the expected level of damage for these buildings are examined in the light of results of nonlinear analyses. The results of these analyses show that when the structure is exposed to some effective ground motions, the safety limits provided in the seismic code are exceeded.

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