Abstract:
In Albania, masonry is still widely used in construction. It reached its peak during the
communist era (1944–1990), when structures with load-bearing stone walls were built
using the Albanian Building Code (KTP) as a guide. The November 26, 2019,
earthquake highlighted these structures' susceptibility to seismic activity, which calls
for a careful assessment of their seismic resilience.
This study highlights the importance of modern retrofitting methods on older buildings
in the protection of architectural history in areas that are vulnerable to earthquakes. An
unreinforced masonry building (URM) constructed in the year 1940 in Tirana is the
subject of the seismic performance evaluation. First, a thorough site examination is
conducted, then samples of the masonry units are taken out of the chosen structure.
The numerical study uses a macromodelling technique with the TREMURI finite
element analysis tool, including mechanical features obtained from experimental test
data. According to the investigation, the URM building exhibits minimal damage and
remarkable seismic resilience. This means that strengthening modifications may
improve its seismic performance.
The analysis results show that the URM building suffers moderate damage under
seismic loads. A post-intervention analysis to highlight the seismic performance
improvements are recommended as possible future works.
The study concludes by suggesting a chosen strategie of intervention based on the
damage of the structure. It is advised that future research carry out a post-intervention
analysis that evaluates and highlights possible enhancements in seismic performance.
This study adds to the current conversation on seismic resilience by offering insightful
information about retrofitting techniques for Albania's ancient masonry buildings,
especially in light of the country's recent seismic incidents.
