In recent years, risk preparation issues have gained importance in order to reduce the effects of natural disasters, especially earthquakes, on immovable cultural assets. However, earthquake preparedness issues have been important for the protection of structures not only today, but also since ancient times. In ancient times, many techniques and materials were tried to be developed to reduce the effect of earthquakes on structures. Documentation and analysis of these construction techniques are necessary to determine the advantages and disadvantages of these measures against earthquakes. In the literature, there are many studies on the morphological and structural features of ancient masonry structures. However, the number of studies on the evaluation of measures taken against lateral loads in ancient masonry structures without mortar is limited. Experimental studies have mostly focused on dry walls that do not use a bonding technique, and studies on double-walled masonry structures with header stones are limited. The aim of this study is to evaluate the relationship between construction systems and structural damages with the help of photogrammetric documentation method, in order to determine the advantages of header stones against seismic movements in dry masonry tower structures in the Karia Region of Western Anatolia.

The method of the study will be discussed under two main headings as preliminary research and detailed documentation. In the first stage, the tower structures to be studied in the Karia Region will be determined by literature research. An inventory will be prepared for these tower structures. In the second stage, detailed documentation will be made with Tgi3D SU photogrammetric software in order to document the construction systems and structural damages of the buildings that have not lost their original features among these tower structures. The relationship between the construction system and structural damage will be evaluated. As a result, the relationship between the number, location and size of the header stones used in the ancient tower structures in the Karia Region and their structural damages will be revealed.