Author: M.Hakkı ARSLAN, Arife AKIN, İ.Hakkı ERKAN, F.Gülten GÜLAY
Publishing Date: 2008
Volume 23 Issue 4
In order to check the seismic performance of typical two- bay Lambda frames, very commonly used for industrial plants in Turkey, a detailed study on a sample prefabricated structure is performed using the criteria given by the recent Turkish Seismic Code(TEC) issued on March 6th 2007.. At the first part of the paper, the typical damage types in precast systems experienced in past earthquakes and their main causes as well as the new provisions for precast structural systems given in the new code are described and summarized. Then structural and geometric properties of the considered industrial plant are presented which was designed and constructed according to 1998 TEC and totally collapsed in 1999 Marmara Earthquake, after the whole erection process was completed in 1998. For the assessment of its seismic performance level, linear-elastic and non-linear static approaches of the considered prefabricated industrial plant as suggested in the new Turkish Seismic Code are carried out. The demand/ capacity ratios, lateral displacements, and the damage states of the structural members are determined by linear–elastic analysis approach and then, the capacity curves are also obtained in both directions by using static push- over analysis, using SAP2000 software in order to obtain the performance level of the structural system. As a result of this study, the performance level of the sample building is totally collapse level for both analysis methods.
Key Words: Precast buildings; seismic damage levels; seismic safety; performance level.