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Earthquake behavior of M1 minaret of historical Sultan Ahmed Mosque (Blue Mosque)
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 Title & Authors
Earthquake behavior of M1 minaret of historical Sultan Ahmed Mosque (Blue Mosque)
Kocaturk, Turgut; Erdogan, Yildirim Serhat;
 Abstract
Minarets are almost the inevitable part of Mosques in Islam and according to some, from a philosophical point of view, today they symbolize the spiritual elevation of man towards God. Due to slenderness, minarets are susceptible to earthquakes and wind loads. They are mostly built in a masonry style by using cut limestone blocks or occasionally by using bricks. In this study, one minaret (M1 Minaret) of one of the charmest mosques of Turkey, Sultan Ahmed Mosque, popularly known as Blue Mosque, built between 1609 and 1616 on the order of Sultan Ahmed by the architect Mehmet Agha is investigated under some registered earthquake loads. According to historical records, a great earthquake hit Istanbul and/or its close proximity approximately every 250 years. Ottomans tackled with the problem of building earthquake resistant, slender minarets by starting to use forged iron connectors with lead as a filler to fix them to the upper and lower and to adjacent stones instead of using traditional mortar only. Thus, the discrete stones are able to transfer tensile forces in some sense. This study investigates the contribution of lead to the energy absorption capacity of the minaret under extensive earthquakes occurred in the region. By using the software ANSYS/LS-DYNA in modelling and investigating the minaret nonlinearly, it is found out that under very big recorded earthquakes, the connectors of vertical cast iron-lead mechanism play very important role and help to keep the structure safe.
 Keywords
historical masonry structures;finite element analysis;discrete element method;earthquake analysis;earthquake resistant structures;
 Language
English
 Cited by
1.
Investigation of the Seismic Behavior of a Historical Masonry Minaret Considering the Interaction with Surrounding Structures, Journal of Earthquake Engineering, 2017, 1  crossref(new windwow)
2.
Seismic analysis and investigation of damage mechanism of 57th infantry regiment memorial using finite-discrete element method, Bulletin of Earthquake Engineering, 2017, 15, 4, 1397  crossref(new windwow)
3.
Discrete and Continuous Finite Element Models and Their Calibration via Vibration and Material Tests for the Seismic Assessment of Masonry Structures, International Journal of Architectural Heritage, 2017, 1  crossref(new windwow)
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