Effect of model calibration on seismic behaviour of a historical mosque

Demir, Ali; Nohutçu, Halil; Ercan, Emre; Hökelekli, Emin; Altıntaş, Gökhan

doi:10.12989/sem.2016.60.5.749

Cited by 17 publications

(13 citation statements)

References 19 publications

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“…Material parameters of the masonry brick walls were determined by formulations given in the literature [19,22]. Material parameters of masonry brick walls of minaret are presented in Table 1.…”

Section: Materials Propertiesmentioning

confidence: 99%

“…The Enhanced Frequency Domain Decomposition (EFDD)/Frequency Domain Decomposition (FDD) and the data driven Stochastic Subspace Identification (SSI) techniques are frequently used for the determination of dynamic properties of historical structures [9,17,18]. Demir et al [19] determined the effects of FEM calibrated on structural behavior of historical Sultan mosque in Manisa, Turkey. Calibrated and non-calibrated FE models were subjected to earthquakes and determined damage state of historical structure.…”

Section: Introductionmentioning

confidence: 99%

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Seismic Assessment in a Historical Masonry Minaret by Linear and Non-linear Seismic Analyses

Hökelekli

Demir

Ercan

et al. 2020

Period. Polytech. Civil Eng.

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Operational Modal Analysis (OMA) method is frequently used in order to determine dynamical properties of historical masonry structures. In this study, damage pattern of historical Alaca minaret which is selected as application is investigated under different ground motions by updating finite element models (FEM) depending on operational modal analysis test. Initial Finite element model was prepared in ABAQUS V10 program and numerical dynamic characteristics of minaret were determined. In addition, experimental dynamic properties of minaret were provided by operational modal analysis. Initial numerical model of brick masonry structure was calibrated via OMA method. Then, linear and non-linear seismic analyses of calibrated FEM of historical minaret were performed by using different earthquakes acceleration records that occurred in Turkey. Concrete Damage Plasticity model was taken into account in non-linear seismic analyses. As a result of the analyses, it is concluded that the stresses obtained with linear analyses aren’t as realistic as the non-linear analyses results and the earthquakes can cause some damages in the minaret.

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Section: Materials Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Seismic Assessment in a Historical Masonry Minaret by Linear and Non-linear Seismic Analyses

Hökelekli

Demir

Ercan

et al. 2020

Period. Polytech. Civil Eng.

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“…Seismic assessment for historical masonry minaret under different excitations is investigated in this study by using finite element models depended on ambient vibration data [5]. Demir et al (2016) Presented a study to evaluate the seismic damage and the failure mechanism of the historical masonry minaret "Hafsa Sultan", which was constructed in 1522 [6]. Barış et al (2017) made an assessment on an important historical masonry minaret built with bricks in Eastern Turkey (the minaret of Van Ulu Mosque).…”

Section: Minaretmentioning

confidence: 99%

Dynamic Response of Historical Masonry Minaret under Seismic Excitation

Khider¹,

Al-Baghdadi²

2020

Civ Eng J

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In order to study the dynamic response of historical masonry structures, a scaled down brick masonry model constructed in civil engineering department at Baghdad University to simulate a part of a real case study, which is Alkifil historic minaret. Most of the previous researches about masonry structures try to understand the behavior of the masonry under seismic loading by experimental and numerical methods. In this paper, the masonry units (bricks) simulated in scale (S= 1/6) with the exact shape of the prototype bricks. Cementitious tile adhesive was selected to be the mortar for the modeling. The height of the model designed to be 1.5 m with a 0.5 m diameter. Detailed construction steps were presented in this paper. Experts built the model with high accuracy. A shaking table and other dynamic testing facilities were used at the University of Baghdad. The model was tested using the time-compressed El Centro 1940 NS earthquake at different amplitudes. The first ground motion of (PGA= 0.05g) which considered as weak ground motion was used to check the adequacy of the conventional behavior of the masonry model and the limit of the elastic behavior of the model during weak earthquakes. Moderate ground motion (PGA=0.15g) was performed to investigate the response of the model with minor to moderate damages. The severe ground motions were not appropriate to use in such circumstances because of the possibility to overturn the model. The experimental results showed very adequacy of the model to withstand the weak and moderate earth motion with no observed cracks.

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“…This CDP model was adapted for masonry structures by Lee and Fenves [34]. The related literature involves numerous works in which CDP was used for modelling of non-linear behavior of masonry units [24,25,30,[35][36][37].…”

Section: Masonry Units and Interface Interaction 31 Materials Model Fmentioning

confidence: 99%

Effect of Cohesive Contact of Backfill with Arch and Spandrel Walls of a Historical Masonry Arch Bridge on Seismic Response

Hökelekli

2019

Period. Polytech. Civil Eng.

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Historical masonry bridges generally consist of arches, spandrels walls, backfills, piers and foundations. Under the effects such as earthquake, flood and wind, the most vulnerable structural elements of bridges against out-of-plane seismic motions are spandrel walls. Increasing length and height of spandrel walls increases the vulnerability of the bridge under loads in vertical and transverse directions. The aim of this research is to examine the in-plane and out-of-plane non-linear structural responses of the spandrel walls of a historical masonry bridge. For this purpose, a historical masonry arch bridge with built in 1787 in Bartın-Turkey was chosen as the subject structure. The 3D finite element model and nonlinear seismic analyses of the bridge were performed with ABAQUS. Initially, the backfill-spandrels and backfill-arch interfaces of the bridge were modeled with and without cohesive contact. The non-linear material responses of the spandrel walls and the arch units were defined using Concrete Damage Plasticity material model and those of the backfill unit were defined with Mohr-Coulomb material model. The east-west component of 17 August 1999 Kocaeli Earthquake’s acceleration records was used in the analyses. The east-west acceleration component was applied on the bridge in-plane and out-of-plane directions during the time-history non-linear seismic analysis of the bridge. The results obtained from the analyses with and without the consideration of cohesive contact were compared to evaluate the seismic responses of the spandrel walls. As a result, cohesive interface behavior was found to significantly affect the spandrel wall response under in- plane and out-of-plane seismic forces.

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Effect of model calibration on seismic behaviour of a historical mosque

Cited by 17 publications

References 19 publications

Seismic Assessment in a Historical Masonry Minaret by Linear and Non-linear Seismic Analyses

Seismic Assessment in a Historical Masonry Minaret by Linear and Non-linear Seismic Analyses

Dynamic Response of Historical Masonry Minaret under Seismic Excitation

Effect of Cohesive Contact of Backfill with Arch and Spandrel Walls of a Historical Masonry Arch Bridge on Seismic Response

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