Multi-Scenario Analysis of Rockfall Hazard for a Historical Vaulted Masonry Building in Sumela Monastery

Nasery, Mohammad Manzoor; Cosgun, Suleyman I.; Temel, Bayram Ali

doi:10.1080/15583058.2022.2091967

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…In order to observe damage situations in the structure, nonlinear material properties were used in numerical analysis to reveal possible cracks and damage scenarios more clearly. The material properties accepted in the finite element model of the structure were selected from the material properties in the literature on masonry structures [19]. The material properties used in the finite element model are presented in Table 1.…”

Section: Numerical Applicationsmentioning

confidence: 99%

Investigating of the Reasons for the Collapse on the Entrance Arches of the Harran Grand Mosque (Ulu Cami) During the Kahramanmaraş Earthquakes (Mw 7.7 and Mw 7.6)

Nasery

2023

CEBEL

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Although historical masonry structures are highly aesthetic, they harbor numerous structural uncertainties. These structures encompass information such as the date of construction, construction methods, material properties, design details and more. They possess diverse identities in various aspects, making the structural assessment of historical buildings a challenging task. Consequently, all historical buildings should be treated with special consideration, and suitable solutions must be devised. In this study, the structural damage causes of the entrance gate of the Harran Grand Mosque (Ulu Cami), which had undergone recent restoration but suffered damage once again during the Kahramanmaraş earthquakes on 6 February 2023 have been investigated. A three-dimensional finite element model of the structure was developed using Abaqus software. In the numerical studies the static as well as non-linear dynamic earthquake analyses were conducted to evaluate the reasons of the collapse of the structure. The structure was subjected to earthquakes from different directions and its compatibility with actual damage scenarios was observed. The study results are presented with contour diagrams of displacement, stress and damage situations. Upon reviewing the numerical findings obtained from the study, it is evident that the actual damage condition of the structure can be reasonably simulated. As a result, it is thought that the earthquake hit the entrance arches from out of plane which caused the collapse. To sum up, by evaluating the damage conditions resulting from such numerical studies, restoration applications can be handled more effectively, ensuring that correct interventions are carried out.

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Section: Numerical Applicationsmentioning

confidence: 99%

Investigating of the Reasons for the Collapse on the Entrance Arches of the Harran Grand Mosque (Ulu Cami) During the Kahramanmaraş Earthquakes (Mw 7.7 and Mw 7.6)

Nasery

2023

CEBEL

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“…Eastern Anatolia, Eastern Black Sea, and Western Black Sea are the first places in terms of the number of rockfall events and the number of people affected by the event. Mass movements sometimes cause loss of life and property [2][3][4][5][6]. Destruction of vegetation, damage to cities and roads, and covering of agricultural areas by inefficient materials are other negative results of mass movements.…”

Section: Introductionmentioning

confidence: 99%

“…Ref. [5] aimed to examine the measures taken to mitigate rockfall hazards in the Sumela Monastery complex. The study involved several stages, including field studies, probabilistic rockfall analysis, finite element simulations, and cleaning and controlled removal of risky rock blocks.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Performance of Gabion Walls as a High-Energy Rockfall Protection System Using 3D Numerical Analysis: A Case Study

Angın,

Karahasan

2024

Applied Sciences

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Cases of rockfalls that occurred on a slope in the Selendi District of Manisa Province are evaluated in this article. Field studies are evaluated and different measures are examined to reduce rockfall risk. Drone flights are used to evaluate previous studies and obtain 1/1000 scale digital topographic maps. These maps are used to create a 3D (three-dimensional) solid model of the project site, and on-site surveys are conducted to identify source rock locations and free blocks that pose a risk. Those 3D analyses are used to determine the paths, jump heights, and energies of the blocks in motion. The data from the 3D maps are used to determine the most appropriate remediation methods. The structural behavior of the recommended gabion wall, which is designed at a certain height and width as a result of rockfalls, has been examined. Structural behavior is determined by simulation based on the finite element model. Within the scope of this study, the ANSYS Workbench program is used. The “Explicit Dynamics” analysis type in ANSYS Workbench was chosen to examine the rockfall effect.

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“…These analyses assist engineering and architectural teams in understanding the mechanical behavior of these structures and contribute to determining appropriate strengthening and restoration strategies. Many studies have been conducted to numerically determine the structural behavior of historical structures, such as buildings [3][4][5][6], mosques [7][8][9], churches [10][11][12][13], masonry bridges [14][15], minarets, and towers [16][17][18][19] etc. Numerical studies have shown that the evaluation of the structural behavior of historical masonry structures is prevalent and effective.…”

Section: Introductionmentioning

confidence: 99%

Seismic evaluation of historical Pertev Pasha Mansion under February 6 Kahramanmaraş (Pazarcık) Earthquake (Mw 7.7)

Cosgun

2023

JSEAM

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Historical masonry structures with aesthetic aspects play an important role in cultural heritage. However, such structures are vulnerable to seismic effects. Therefore, periodic maintenance and structural evaluations are required for these structures. In this study, a historical masonry building called the Pertev Pasha Mansion, located in Trabzon, Turkey, was selected for the evaluation. The building was demolished in the last few years and has been planned to be rebuilt in its original form. In the study, the finite element model of the building was created based on reconstruction drawings. Modal analysis was performed to obtain the frequencies and mode shapes of the building. Finally, seismic analyses were conducted based on the February 6 Kahramanmaraş earthquakes for two different acceleration records that were collected from different stations, one near the epicenter (Pazarcık station) of the earthquake and the other near the building (Ortahisar station). From the results of the modal analysis, the frequency and mode shapes of the structure were obtained. The displacement and stress results were obtained from the seismic analysis and presented with contour diagrams. At the end of the study, a general evaluation considering the novel Turkish guidelines for historic structures was conducted. According to the results of the seismic analysis performed using the Pazarcık station data, the drift ratio values of the structure exceeded 0.7%, which corresponds to the Collapse Prevention (CP) performance level. However, according to the seismic analysis results obtained using Ortahisar station data, the maximum drift ratio of the structure was 0.001%, corresponding to the Limited Damage (LD) performance level. Consequently, if the building had been built close to the center of the earthquake, it was likely to collapse, but it was estimated that it would have received limited damage because its current location was far from the center of the earthquake.

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Multi-Scenario Analysis of Rockfall Hazard for a Historical Vaulted Masonry Building in Sumela Monastery

Cited by 6 publications

References 41 publications

Investigating of the Reasons for the Collapse on the Entrance Arches of the Harran Grand Mosque (Ulu Cami) During the Kahramanmaraş Earthquakes (Mw 7.7 and Mw 7.6)

Investigating of the Reasons for the Collapse on the Entrance Arches of the Harran Grand Mosque (Ulu Cami) During the Kahramanmaraş Earthquakes (Mw 7.7 and Mw 7.6)

Evaluation of the Performance of Gabion Walls as a High-Energy Rockfall Protection System Using 3D Numerical Analysis: A Case Study

Seismic evaluation of historical Pertev Pasha Mansion under February 6 Kahramanmaraş (Pazarcık) Earthquake (Mw 7.7)

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