A virtual microstructure generator for 3D stone masonry walls

Shaqfa, Mahmoud; Beyer, Katrin

doi:10.1016/j.euromechsol.2022.104656

Cited by 17 publications

(3 citation statements)

References 61 publications

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“…This feature could be worth exploring for the structural assessment of historical masonry buildings, as masonry components, such as units and joints, can exhibit wide variability due to the presence of environmental factors and the availability of raw materials during construction. Additionally, construction technology and masons' skills can influence local failure mechanisms and load-bearing capacity [24,[51][52][53][54]. However, accurately predicting the structural response and addressing all types of failure modes is challenging due to the masonry's inherently nonlinear and scattered material properties [38].…”

Section: Predictive Models For the Assessment Of The Structural Behav...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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Section: Predictive Models For the Assessment Of The Structural Behav...mentioning

confidence: 99%

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

2023

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“…Over the past few decades, significant progress has been made in reliably assessing the structural integrity of historic masonry buildings. To accurately predict damage scenarios and ensure structural integrity safety, it is important to use high-fidelity geometrical re-constructions along with appropriate numerical approaches [1][2][3][4][5]. Over the past few decades, there has been extensive use of numerical models for the nonlinear analysis of historical masonry structures.…”

Section: Introductionmentioning

confidence: 99%

A Two-Step Approach for the Seismic Assessment of Masonry Structures Accounting for the Actual Masonry Pattern

Szabò,

Funari,

D'Altri

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Seismic assessment of masonry structures is a pressing concern in the scientific community. Over the last few decades, significant progress has been made in developing numerical modelling strategies for masonry. However, due to the unique mechanics of masonry, which exhibit a quasi-brittle and anisotropic behaviour, there is no trade-off between accuracy and computational efficiency when conducting numerical simulations of masonry structures. This study proposes a new approach to conduct in-plane numerical simulations of masonry structures, which couple limit and pushover analyses considering the actual masonry pattern. The first step of the procedure involves a block-based limit analysis, which considers the actual masonry pattern. Macroblocks, i.e., the portions which compose the collapse mechanism, are then identified using an ad-hoc algorithm that searches for the pivot point of the obtained failure mechanisms. In the second step, a pushover analysis is conducted on the simplified structure composed of macroblocks, considered as continuum bodies, interacting via frictional interfaces. The proposed approach is preliminary tested on two structural-scale benchmarks made of dry-stack masonry, showing promising results.

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“…Детальне моделювання мікромоделі стін з кам'яної кладки для отримання двовимірної та тривимірної сітки кінцевих або дискретних елементів для широкого діапа-зону типологій кам'яної та цегляної кладки розроблено в роботі [14], щоб імітувати робочий процес муляра. Коди Python3.7 генератора мікроструктури та згенеровані сітки, доступні відповідно до умов GNU LGPLv3, дозволяють здійснювати багатомасштабний аналіз цілих конструкцій, а також для методів гомогенізації.…”

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The Fundamentals of Forming the Numerical Composition of the Complex Brigade of Mason-Installers

MAKHYNYA¹,

HLUSCHENKO²,

Basarab³

2022

БКТП

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The design of the flow method of the construction of a multi-story residential building with stone walls and prefabricated reinforced concrete floor structures has its own features, namely, the presence of mechanized and non-mechanized (manual) processes, which implies a significant difference in the number of performers when coordinating flows among themselves. Taking into account the importance of ensuring the rhythmic execution of construction processes, the formation of the optimal numerical composition of the complex brigade is an urgent issue. As a result of the research, the complex process of building stone houses with prefabricated floors was divided into two streams: The first stream - assembly, transport and auxiliary processes: the first tier - delivery of pallets with bricks, delivery of boxes with construction mortar, monotonization of the gaps between the slabs; the second tier – installation of scaffolding, delivery of pallets with bricks, delivery of boxes with construction mortar, installation of the intermediate staircase and the first flight of stairs; the third tier – raising scaffolding, supplying pallets with bricks, supplying boxes with construction solution, dismantling scaffolding, installing floor slabs and the second flight of stairs; The second flow is the masonry of stone structures of the first, second and third tiers. As a result of the conducted research, the theoretical dependence of the numerical composition of the complex brigade on the volume of work on the fence, the norms of labor costs and the conditions of performance of the work were established. At the same time, the limitations of the minimum numerical composition of the link were taken into account, with the condition of its ability to perform the most complex process from the components of the flow, which determines the need for the largest number of performers. Also, restrictions on the maximum number of performers are taken into account, provided that each performer is provided with a sufficient front of work to perform it during the shift, and restrictions on the workload of performers depending on the accepted number of construction machines. The obtained results make it possible to optimize the technological design process.

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A virtual microstructure generator for 3D stone masonry walls

Cited by 17 publications

References 61 publications

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

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

A Two-Step Approach for the Seismic Assessment of Masonry Structures Accounting for the Actual Masonry Pattern

The Fundamentals of Forming the Numerical Composition of the Complex Brigade of Mason-Installers

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