In-plane assessment of historical masonry arches over piers through an experimental and numerical approach
Session
Civil Engineering, Infrastructure and Environment
Description
Historical masonry structures, integral to the world architectural heritage, typically feature large masonry units with dry or poorly mortared joints. Their stability relies more on the internal arrangement and placement of these units rather than sheer strength of the material itself. Numerous numerical simulations and experimental studies have been carried out to evaluate their performance under lateral loads. An experimental campaign using a small tilting table have been carried out to test masonry arches on piers, varying the internal arrangement of the piers and the arch’s depth. Numerical simulations, based on limit analysis with friction and developed using an in-house code ALMA (Analisi Limite Murature Attritive), have been employed to validate and calibrate this code. These studies have underscored the significance of block interlocking in collapse mechanisms and multipliers, highlighting the impact of unit imperfections. Results reveal that block interlocking is crucial and greatly affects collapse behavior, with the contact surfaces between blocks playing a key role in collapse mechanisms and their multipliers. Furthermore, both numerical and experimental findings emphasize that wellorganized piers enhance the structural capacity of the entire system. The study concludes that the capacity of historical masonry structures is more influenced by geometry and unit arrangement than by sheer strength.
Keywords:
limit analysis, tilting table, in-house code, frictional contact
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-982-15-3
Location
UBT Kampus, Lipjan
Start Date
25-10-2024 9:00 AM
End Date
27-10-2024 6:00 PM
DOI
10.33107/ubt-ic.2024.312
Recommended Citation
Nela, Bledian; Pingaro, Marco; and Trovalusci, Patrizia, "In-plane assessment of historical masonry arches over piers through an experimental and numerical approach" (2024). UBT International Conference. 12.
https://knowledgecenter.ubt-uni.net/conference/2024UBTIC/CEIE/12
In-plane assessment of historical masonry arches over piers through an experimental and numerical approach
UBT Kampus, Lipjan
Historical masonry structures, integral to the world architectural heritage, typically feature large masonry units with dry or poorly mortared joints. Their stability relies more on the internal arrangement and placement of these units rather than sheer strength of the material itself. Numerous numerical simulations and experimental studies have been carried out to evaluate their performance under lateral loads. An experimental campaign using a small tilting table have been carried out to test masonry arches on piers, varying the internal arrangement of the piers and the arch’s depth. Numerical simulations, based on limit analysis with friction and developed using an in-house code ALMA (Analisi Limite Murature Attritive), have been employed to validate and calibrate this code. These studies have underscored the significance of block interlocking in collapse mechanisms and multipliers, highlighting the impact of unit imperfections. Results reveal that block interlocking is crucial and greatly affects collapse behavior, with the contact surfaces between blocks playing a key role in collapse mechanisms and their multipliers. Furthermore, both numerical and experimental findings emphasize that wellorganized piers enhance the structural capacity of the entire system. The study concludes that the capacity of historical masonry structures is more influenced by geometry and unit arrangement than by sheer strength.