Abstract
Historical structures are the values that are of great importance to that country, showing the roots of a country, and must be passed on from generation to generation. This study attempts to make a contribution to this goal. Seismic damage pattern estimation in a historical brick masonry minaret under different ground motion levels is investigated by using updated finite element models based on ambient vibration data in this study. Imaret Mosque which was built in 1481 AD is selected for an application. Surveying measurement and material tests were conducted to obtain a 3D solid model and mechanical properties of the components of the minaret. Firstly, the initial 3D finite element model of the minaret was analyzed and numerical dynamic characteristics of the minaret were obtained. Then, ambient vibration tests as well as operational modal analysis were implemented in order to obtain the experimental dynamic characteristics of the minaret. The initial finite element model of the minaret was updated by using the experimental dynamic results. Lastly, linear and nonlinear time-history analyses of the updated finite element model of the minaret were carried out using the acceleration records of two different level earthquakes that occurred in Turkey, in Afyon-Dinar (1995) and Çay-Sultandağı (2002). A concrete damage plasticity model is considered in the nonlinear analyses. The conducted analyses indicate that the compressive and tension stress results of the linear analyses are not as realistic as the nonlinear analysis results. According to the nonlinear analysis, the Çay-Sultandağı earthquake would inflict limited damage on the minaret, whereas the Dinar earthquake would damage some parts of the elements in the transition segment of the minaret.
Highlights
Architectural and structural characteristics of minarets are influenced by national and local building materials
Historical minarets are generally masonry structures in which stone or clay brick and mortar are used together. e behavior of the majority of historical structures differs from one another during an earthquake as local materials are used in their construction. ere is usually a spiral staircase system made of wood or stone inside the minarets. e most important feature of historical masonry structures is that they reflect the architectural characteristics of the time at and the region in which they were built [1]
Hejazi et al investigated the response of nine minarets under different temperatures, wind, and earthquakes using a nonlinear finite element model
Summary
Architectural and structural characteristics of minarets are influenced by national and local building materials. D’Ambrisi et al updated the finite element model of the Civic Tower in Italy by operational modal analysis (OMA) and revealed the nonlinear seismic performance of the tower [11]. Hejazi et al investigated the response of nine minarets under different temperatures, wind, and earthquakes using a nonlinear finite element model In the study, they have revealed that earthquakes are the main cause of collapse of the minarets [18]. Diaferio and others have experimentally investigated a historic stone masonry building with OMA under environmental vibration and emphasized the need for improvement of the finite element model for realistic analysis [25]. Is study is aimed at estimating seismic damage propagation in a historical clay brick masonry minaret under different ground motion levels by using the updated finite element model based on ambient vibration data. Nonlinear analysis was performed using the concrete damage plasticity (CDP) model [27]. e damage of the historical minaret against the two selected earthquakes was obtained, and it was determined that the minaret was at risk of collapse during a severe earthquake
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
