recent studies on earthquake performance assessment of hagia sophia in istanbul

Over the last twenty-five years there have been a series of academic efforts to understand the particulars associated with earthquake performance and vulnerability of hagia sophia. linear and nonlinear structural analyses; literary investigations; non-destructive tests and investigations involving its construction materials, foundations, main structural elements; ambient vibration tests; monitoring its earthquake response with the help of an accelerometric network were among them. more recently the foci of efforts were the analysis of long term dynamic response of hagia sophia to earthquakes and variations in atmospheric conditions, shake table testing of a scaled model of the structure, analysis of recently added tilt-meter recordings, evaluation of strengthening alternatives and monitoring of its static deformations via laser technology. this contribution presents an overall picture of the research efforts carried out so far on earthquake response analysis of hagia sophia, emphasizing the studies over the last five years.