A solution for the frictional resistance in macro-block limit analysis of non-periodic masonry

Funari, ‪Marco Francesco; Pulatsu, Bora; Szabó, Simon; Lourenço, Paulo B.

doi:10.1016/j.istruc.2022.06.072

Cited by 32 publications

(14 citation statements)

References 65 publications

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“…Although, the research on complex and more precise modeling of URM is very active [51][52][53][54], in this research the 3D model for the evaluation of the seismic behavior was created in the 3Muri software [55], which is used for the analysis of new or existing buildings, and is especially suitable for performing non-linear static (pushover) analysis, which provides very good results for masonry structures.…”

Section: Modelling and Design Of Seismic Strengthening Methodsmentioning

confidence: 99%

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

Salaman¹,

Stepinac

Matorić³

et al. 2022

Buildings

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Following the Zagreb earthquake in March of 2020, a destructive 6.2 magnitude earthquake struck Croatia again in December of 2020. The Sisak-Moslavina county suffered the most severe consequences; many historical and cultural buildings were badly damaged. In the education sector, 109 buildings were damaged. One such building is the case study of this research. The heritage-protected building of the First Primary School in Petrinja is an unreinforced masonry structure, constructed using traditional materials and building techniques. The historical background of the building and the results of the post-earthquake assessment are presented. A numerical calculation of three strengthening methods was performed in 3Muri software: FRCM, FRP, and shotcrete. Non-linear pushover analysis was performed for each model. Finally, the strengthening methods are compared based on the achieved earthquake capacity, cost, and environmental impact.

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Section: Modelling and Design Of Seismic Strengthening Methodsmentioning

confidence: 99%

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

Salaman¹,

Stepinac

Matorić³

et al. 2022

Buildings

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“…Block-based models represent the actual masonry texture since they are modelled following the unit-by-unit representation. They are computationally demanding and more appropriate for small models and localised analysis [34][35][36][37][38]. Continuum models consider masonry as a deformable continuum material and are suitable for the global modelling of complex geometries involving massive elements.…”

Section: Model Creation: Geometrical Model Generation and Computation...mentioning

confidence: 99%

On the Use of the Digital Twin Concept for the Structural Integrity Protection of Architectural Heritage

2023

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Undoubtedly, heritage buildings serve as essential embodiments of the cultural richness and diversity of the world’s states, and their conservation is of the utmost importance. Specifically, the protection of the structural integrity of these buildings is highly relevant not only because of the buildings themselves but also because they often contain precious artworks, such as sculptures, paintings, and frescoes. When a disaster causes damage to heritage buildings, these artworks will likely be damaged, resulting in the loss of historical and artistic materials and an intangible loss of memory and identity for people. To preserve heritage buildings, state-of-the-art recommendations inspired by the Venice Charter of 1964 suggest real-time monitoring of the progressive damage of existing structures, avoiding massive interventions, and providing immediate action in the case of a disaster. The most up-to-date digital information and analysis technologies, such as digital twins, can be employed to fulfil this approach. The implementation of the digital twin paradigm can be crucial in developing a preventive approach for built cultural heritage conservation, considering its key features of continuous data exchange with the physical system and predictive analysis. This paper presents a comprehensive overview of the digital twin concept in the architecture, engineering, construction, and operation (AECO) domain. It also critically discusses some applications within the context of preserving the structural integrity of architectural heritage, with a particular emphasis on masonry structures. Finally, a prototype of the digital twin paradigm for the preservation of heritage buildings’ structural integrity is proposed.

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“…In particular, the need to investigate the non-linear behavior of monumental buildings may be achieved by adopting sophisticated and advanced numerical methodologies, that is, the finite element method (FEM) [6][7][8][9][10][11] or discrete element method (DEM). [12][13][14][15] Such approaches model the masonry material using different representation scales, that is, equivalent continuum, macro-blocks, or discrete representations and are suitable to perform the seismic assessment of masonry structures. FEM allows a more versatile application, as masonry can be represented either through a continuous equivalent media (designated macro-modeling) or by a discrete representation of units and joints (designated micro-modeling).…”

Section: Introductionmentioning

confidence: 99%

“…In this context, today's computational methods offer possibilities for assessing vulnerability and open new perspectives and challenges. In particular, the need to investigate the non‐linear behavior of monumental buildings may be achieved by adopting sophisticated and advanced numerical methodologies, that is, the finite element method (FEM) 6–11 or discrete element method (DEM) 12–15 . Such approaches model the masonry material using different representation scales, that is, equivalent continuum, macro‐blocks, or discrete representations and are suitable to perform the seismic assessment of masonry structures.…”

Section: Introductionmentioning

confidence: 99%

Stochastic simulation of earthquake ground motions for the seismic assessment of monumental masonry structures: Source‐based vs site‐based approaches

Karimzadeh,

Funari,

Szabó

et al. 2023

Earthq Engng Struct Dyn

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Earthquakes are among the most destructive natural disasters and have resulted in a massive number of fatalities and economic losses all over the world. Simulated ground motion records are valuable, particularly for regions lacking seismic stations or with a limited history of large‐magnitude earthquakes. Notably, a significant percentage of monumental masonry buildings are located in regions with limited access to real records; hence, simulated records play a paramount role in their seismic protection. However, few studies have investigated the structural response of heritage buildings via response history analyses to assess the performance of simulated earthquakes against real ones. To accomplish this, this study simulates the recorded time‐series of the 9th of July 1998 Faial earthquake in the Azores (Mw = 6.2) at four available stations, using two different simulation approaches, that is, a source‐based stochastic finite‐fault method and a site‐based broadband stochastic method. First, two masonry facades with sidewalls characterized by different slenderness levels are adopted to conduct this research. Moreover, the proposed approach is also applied to an existing monumental structure, that is, São Francisco Church, located at Horta, which was affected by damage during the Faial earthquake. Results demonstrate that both simulation approaches provide similar results in terms of structural response prediction. The proposed framework also demonstrates that a small mismatch in terms of predicted damage patterns can result in a significant relative error in terms of displacement predictions.

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A solution for the frictional resistance in macro-block limit analysis of non-periodic masonry

Cited by 32 publications

References 65 publications

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

Post-Earthquake Condition Assessment and Seismic Upgrading Strategies for a Heritage-Protected School in Petrinja, Croatia

On the Use of the Digital Twin Concept for the Structural Integrity Protection of Architectural Heritage

Stochastic simulation of earthquake ground motions for the seismic assessment of monumental masonry structures: Source‐based vs site‐based approaches

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