Ultrasonic investigations of marble columns of historical structures built in two different periods
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Ultrasonic methods are commonly used in structural investigation of historical buildings because they are easily applicable and produce rapid results. Information about strength of museums, mosques, and building structures can be obtained using ultrasonic waves. Turkey is located in a region where destructive earthquakes take place frequently. Buildings suffer significant damage from the earthquakes and deterioration over time. Therefore, the bearing systems of historical monuments should be investigated and protective measures, if necessary, should be taken. This study aims to analyze the marble columns of Hagia Sophia museum, built in the thirteenth and Gülbahar Hatun Mosque, built in the fifteenth century by using ultrasonic measurements and to compare with each other. These two buildings are among the most important historical structures in the Eastern Black Sea region of Turkey. Ultrasonic velocity distribution of marble columns was obtained from ultrasonic measurements with specific data acquisition. The velocity maps were analyzed and compared with both literature values and one another. The qualities of the main columns in the structures were determined through the use of some semi-quantitative calculations. The results show that the columns of Gülbahar Hatun Mosque were of low quality and that its columns had micro cracks. However, the columns of Hagia Sophia museum are in better condition.
KeywordsUltrasonic method Historical buildings Marble Structure inspection
The authors are also grateful to the Museum Directorate of Trabzon for their precious help.
- Akevren S (2010) Non-destructive examination of stone masonry historic structures—quantitative IR thermography and ultrasonic testing. MSc Dissertation, The Graduate School of Natural and Applied Sciences of Middle East Technical University, Ankara, TurkeyGoogle Scholar
- Barroso E, Silva L, Polivanov H (2006) Weathering and deterioration evaluation of a Brazilian cultural heritage building. IAEGGoogle Scholar
- Cecire AS (2003) Nondestructive evaluation of historic structures. Dissertation, Massachusetts Institute of TechnologyGoogle Scholar
- Diana G, Fais S (2010) IR thermography and ultrasonic investigations in the cultural heritage field. In: 15th international conference on “cultural heritage and new technologies”, ViennaGoogle Scholar
- Golden Software Surfer (2002) User’s guide: contouring and 3D surface mapping for scientist and engineers. Colorado, USAGoogle Scholar
- Gosálbez J, Salazar A, Bosch I, Miralles R, Vergara L (2006) Application of ultrasonic nondestructive testing to the diagnosis of consolidation of a restored dome. Mater Eval 64(5):492–497Google Scholar
- Lemoni E, Christaras B (1999) Classification of soils for urban planning, using in situ ultrasonic velocity techniques, geotechnical engineering for transportation infrastructure. Balkema, Rotterdam, pp 393–399Google Scholar
- URL1 (2012) http://en.wikipedia.org/wiki/Hagia_Sophia,_Trabzon. Accessed 3 Apr 2012
- URL2 http://www.trabzon.bel.tr/english/gulbahar.html. Accessed 3 Apr 2012
- Yagiz S (2010) Geomechanical properties of construction stones quarried in South-western Turkey. Sci Res Essays 5(8):750–757Google Scholar