FDEM Simulation on the Failure Behavior of Historic Masonry Heritages Subjected to Differential Settlement

Ou, Weibing; Chen, Xudong; Chan, Andrew; Cheng, Yingyao; Wang, Hongfan

doi:10.3390/buildings12101592

Cited by 12 publications

(3 citation statements)

References 48 publications

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“…There are some studies in the literature that focus on structural behavior of masonry structures taking into account the soil-structure interaction [24][25][26][27][28][29][30][31][32][33][34][35]. On the other hand, there are also studies that take into account the seismic effect and differential settlement effects for historical structures [36][37][38][39][40]. To our best knowledge, the investigation into the simulation of the damage to historical masonry structures due the soil settlement is rare.…”

Section: Finite Element Modelmentioning

confidence: 99%

Numerical Simulation of Severe Damage to a Historical Masonry Building by Soil Settlement

Ertürk Atmaca,

Genç,

Altunişik

et al. 2023

Buildings

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Historical masonry structures, which constitute an important part of the historical heritage, exhibit brittle behavior under tensile stresses due to earthquakes or soil movements/settlements. Therefore, they are sensitive to deformation. The soil–structure interaction problems play an important role in the damage to historical masonry structures. Different settlements, slips, and deformations in foundations causes damage to, and/or partial collapse the load-bearing walls. This study provides a numerical simulation of a historic masonry building on the north coast of Turkey, dating from 19th century, which suffered severe damage due to soil settlement by excavation activity near the building. FE models of the building with and without the soil–structure system were created to identify the damage to the building following soil settlement. The height of the soil domain (bounded as a fixed boundary condition) was accepted in the range of 1.5 m to 15 m. The damage propagation between the numerically obtained damage and the existing damage to the building was detailed and compared. In terms of displacement, the maximum vertical and horizontal displacement values reflecting the existing damage to the building were determined as 22 mm and 85 mm, respectively. The soil depth of 6 m was also considered acceptable for deciding the soil–structure interaction. For this, the sum of the rigid basement and the soil depth can be selected to be equal to the total height of the building participating in free vibration. It was concluded that the numerical procedure employed provided an effective representation of existing damage to a building due to soil settlement. Moreover, the procedure described can be adopted for possible collapse simulation.

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Section: Finite Element Modelmentioning

confidence: 99%

Numerical Simulation of Severe Damage to a Historical Masonry Building by Soil Settlement

Ertürk Atmaca,

Genç,

Altunişik

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…On the other hand, the suggested ground motion restoration solution proved to be effective and real, leading to the confirmation of the ground motion performance. Ou et al [31] implemented another investigation. In that investigation, the combined finite-discrete element method (FDEM) was chosen to simulate the destruction performance of historic masonry traditions to support differential descent.…”

Section: Introductionmentioning

confidence: 99%

Implications of Arch Warp Altitudes on an Ancient Masonry Bridge under Ground Movements

Karalar

Yesil

2023

Applied Sciences

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Although only a few of the ancient masonry arch bridges (MABs) are in fairly good condition today, many ancient arch bridges are still in use. Over time, the condition of the masonry bridges declines and the safety requirements change. Therefore, it is important to examine these bridges under different influences. The strengthening of MABs is generally not essential. The major cause of damage to MABs is their insufficient width and height, and thus, it is not the safety but the usability that has restricted the life-time of the MABs. Therefore, in this investigation, the effect of the arch height on the static and dynamic behavior of a single-span MAB was investigated. For this aim, the Ancient Tokatlı Bridge, built in Karabük, Türkiye, was selected for investigation under near-fault (NF) and far-fault (FF) ground motions (GMs). To observe the altitude of the arch warp on the ancient MAB, first, the finite element model (FEM) was utilized, using ANSYS and SAP 2000. Furthermore, to constitute the arch warp’s influence on a MAB, the FEM was remodeled considering the different arch warps between 7.0 and 9.0 m. Moreover, GMs were applied to the FEM to investigate the effect of dynamic behavior. Under these GMs, stresses and strains (compression and tensile) were observed and compared with each other. Consequently, at the end of these investigations, it was observed that the maximum motions were reduced, while the height of the one-span MAB was increased under NF and FF GMs, and this was also true for the contrary situations. The compression stresses were not observed to be hazardous at the point of destruction, while the altitude of the one-span MAB increased.

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“…This is the case of the combined finite-discrete element method [37], in which the structure is modelled with deformable solid finite elements with zero-thickness contact elements located at their boundaries to simulate the cracking phenomena. The application of this method to masonry, both in general and specifically for towers, can be found in [38,39].…”

Section: Introductionmentioning

confidence: 99%

Seismic Vulnerability Evaluation of a Historical Masonry Tower: Comparison between Different Approaches

et al. 2022

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Throughout the last few decades, the scientific community has paid great attention to the structural safety of historical masonry constructions, which have high vulnerability with respect to seismic activities. Masonry towers are very widespread in Italy and represent an important part of the built heritage to be preserved. Different numerical methods with different levels of refinement were developed in the literature to evaluate their seismic performance. The present study shows a practical application of the seismic vulnerability evaluation of a masonry tower using different approaches. The aim is to provide practical suggestions to engineers for the successful evaluation of the performance of masonry towers under seismic loads. An in situ survey was performed to characterize the geometry of the structure and its constitutive material. All the collected information was introduced in a building information model, later used to generate different finite element models for the structural analyses. The global capacity of the structure was evaluated using three different models with different levels of complexity: the first simplified model is made of beam elements with cross-sections discretized in fibers; the second model is made of shell elements and uses a concrete damage plasticity model to describe the nonlinear masonry behavior; the third model adopts solid elements with a concrete smeared crack constitutive law. A preliminary eigen-frequency analysis is performed on the shell model to obtain some basic information about the structural behavior. Nonlinear static analyses were carried out for each model to understand the response of the tower under seismic loads, highlighting the main differences between the approaches. The behavior factor was evaluated on the basis of the analyses results and compared with the ones suggested by the Italian building code. The results showed that the towers do not satisfy the seismic demand required by the standards for all the considered models. Furthermore, the behavior factor calculated according to the Italian design code is overestimated, while the one evaluated by the simplified model is underestimated due to the neglection of the shear behavior. From all the analyzed configurations, the shell model resulted as a good compromise between reliable results and computation efficiency.

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FDEM Simulation on the Failure Behavior of Historic Masonry Heritages Subjected to Differential Settlement

Cited by 12 publications

References 48 publications

Numerical Simulation of Severe Damage to a Historical Masonry Building by Soil Settlement

Numerical Simulation of Severe Damage to a Historical Masonry Building by Soil Settlement

Implications of Arch Warp Altitudes on an Ancient Masonry Bridge under Ground Movements

Seismic Vulnerability Evaluation of a Historical Masonry Tower: Comparison between Different Approaches

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