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Homogenization Techniques for Multi-leaf Masonry Wall Analysis: FEM Strategies for Historical Structures
Assessing the mechanical behaviour of historical multi-leaf masonry walls is a complex process due to the intricate interactions of several significant variables. These variables encompass the dimensions of the individual layers, mechanical characteristics of each layer, and properties of their interconnections under various external actions, such as compression and in-plane shear. When dealing with complex 3D Finite Element (FE) models of historical buildings, the focus on material characterisation to properly calibrate the homogenisation of multilayer walls is of crucial importance. This is performed to enhance the computational efficiency of the analysis while maintaining accuracy.This paper focuses on historical Roman masonry walls, characterised by a unique composition comprising two outer layers constructed using brickwork, and a distinctive inner core crafted from Roman concrete, often referred to as “Opus Caementicium”. Experimental data from a semi-destructive site-testing campaign conducted on multi-leaf masonry walls at St. Peter’s Basilica in Vatican were used to develop non-linear FE models calibrated to represent a material equivalent to the investigated masonry layers. This enables efficient 3D Non-Linear Finite Element Analyses (NLFEA) of the entire structures while minimizing computational complexity.
Homogenization Techniques for Multi-leaf Masonry Wall Analysis: FEM Strategies for Historical Structures
Assessing the mechanical behaviour of historical multi-leaf masonry walls is a complex process due to the intricate interactions of several significant variables. These variables encompass the dimensions of the individual layers, mechanical characteristics of each layer, and properties of their interconnections under various external actions, such as compression and in-plane shear. When dealing with complex 3D Finite Element (FE) models of historical buildings, the focus on material characterisation to properly calibrate the homogenisation of multilayer walls is of crucial importance. This is performed to enhance the computational efficiency of the analysis while maintaining accuracy.This paper focuses on historical Roman masonry walls, characterised by a unique composition comprising two outer layers constructed using brickwork, and a distinctive inner core crafted from Roman concrete, often referred to as “Opus Caementicium”. Experimental data from a semi-destructive site-testing campaign conducted on multi-leaf masonry walls at St. Peter’s Basilica in Vatican were used to develop non-linear FE models calibrated to represent a material equivalent to the investigated masonry layers. This enables efficient 3D Non-Linear Finite Element Analyses (NLFEA) of the entire structures while minimizing computational complexity.
Homogenization Techniques for Multi-leaf Masonry Wall Analysis: FEM Strategies for Historical Structures
Lecture Notes in Civil Engineering
Milani, Gabriele (editor) / Ghiassi, Bahman (editor) / Rusticano, Giuseppe (author) / Daró, Paola (author) / Mendola, Lidia La (author)
International Brick and Block Masonry Conference ; 2024 ; Birmingham, United Kingdom
2024-12-13
13 pages
Article/Chapter (Book)
Electronic Resource
English
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