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Block masonry equation-based model updating of a masonry minaret and seismic performance evaluation
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Block masonry equation-based model updating of a masonry minaret and seismic performance evaluation
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Journal Article
Block masonry equation-based model updating of a masonry minaret and seismic performance evaluation
2023
Overview
This paper investigates a masonry minaret's current condition and seismic performance, namely Alacakapı Mir-Alay Şah Ali Bey (The short form is Alacakapı Minaret). Two prayer halls surround the Alacakapı minaret. One of these prayer halls was severely damaged by the Sivrice-Elazığ earthquake on January 24, 2020. The other prayer hall is moderately damaged and still waiting for restoration and reinforcing solutions. The severely damaged hall was demolished. Due to the demolished hall, boundary conditions and clear height changed. Two surfaces are considered to be fixed supports. One is the bottom side, and the other is the vertical side. To determine the current condition of the minaret, first, dynamic identification is conducted by five accelerometers. Then destructive and non-destructive tests were performed to determine material properties. After that, a solid model was generated, and model calibration was conducted. Eight different formulations were considered for the model calibration proposed in the literature, reflecting a homogenized material approach that includes brick-and-mortar units. Three different mortar strengths were considered to obtain the best material properties that demonstrate the actual situation of the minaret. Local damage is realized when comparing the finite element model and operational modal analysis results. Finally, six different earthquake records were selected to determine the seismic response of Alacakapı Minaret to determine vulnerable locations for retrofit solutions.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
