Vertical strong ground motion effects on seismic damage propagations of historical masonry rectangular minarets

Bayraktar, Alemdar; Hökelekli, Emin; Halifeoğlu, Fatma Meral; Mosallam, Ayman; Karadeniz, H.

doi:10.1016/j.engfailanal.2018.04.029

Cited by 47 publications

(8 citation statements)

References 33 publications

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“…Although CDP model proposed by Lubliner et al [27], is used for concrete material, it is later adapted masonry material behavior by Lee and Fenves [28]. In the literature, there are many studies using CDP material model for modeling structural behavior of masonry structures [29][30][31]. CDP characterizes the behavior of the concrete subjected to tension and compression stresses and the damage parameters as shown in Fig.…”

Section: Seismic Damage Pattern Estimation Of the Minaretmentioning

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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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: Seismic Damage Pattern Estimation Of the Minaretmentioning

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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“…During restoring the gates, the height of the arched section of the middle gate was increased to be suitable for traffic service. In this way, however, some original materials and marks on the middle gate were lost [5,13,15]. Besides, as seen from Figure 4a, all gates have the arched top section at the inner surface while only the middle gate has the arched top section at the outer surface as shown in Figure 4b.…”

Section: Architectural and Structural Properties Of The Urfa Gatementioning

confidence: 99%

Tarihi Diyarbakır Surları: Urfa Kapı, Burçları ve Sur Duvarları Örneği için Koruma ve Tamamlama Önerisi

Işık

Halifeoğlu

İpek

2020

Türk Doğa Ve Fen Dergisi

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Fortification, conservation, and restoration of the structures and buildings that can be considered as cultural heritage are very crucial. Diyarbakır, one of the cities included in the UNESCO Cultural Heritage List thanks to its historic city walls and Hevsel gardens, has been a host of many of these types of structures and buildings. The current study covers the observational examination of the Urfa Gate, towers, and city walls of the historic Diyarbakır City Walls. This study aims to determine the structural damages that occurred in these parts of city walls and then, constitute a path in order to conserve and integrate these historic structures. Besides, the study also contains the remedy and suggestion proposals sections for such kinds of damages coming into existence on these types of structures. Thanks to the observational examinations, remarkable structural damages on the load-carrying systems of the gate transitions and towers were revealed. Moreover, irregularities and soil coverings on the ground floors of the towers, material lost on the city walls and towers, slumping were sighted during the examinations. As a prosal for these problems, the fortification and integration suggestions have been listed in order to holistically conserve and sustain the city walls, gate transitions, and towers.

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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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Vertical strong ground motion effects on seismic damage propagations of historical masonry rectangular minarets

Cited by 47 publications

References 33 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

Tarihi Diyarbakır Surları: Urfa Kapı, Burçları ve Sur Duvarları Örneği için Koruma ve Tamamlama Önerisi

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

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