2. Asinelli Tower: geometry
• Masonry tower built between XI e XII
century
• Total height of 97.20 m
• Inclination of 1.7° (corresponding to a
overhanging of 2.23 m) in the West
direction
Geometry:
3. Asinelli Tower: geometry
• The cross section of the walls varies
along the height of the Tower
• The external walls were built using the
so called “a sacco” technique up to a
height of 59.3 m.
Internal fill
External
layers
Geometry:
BRICK
MASONRY
5. Asinelli Tower: history
• During the last century different strengthening interventions have been
realized:
– masonry consolidation trough substitution of the most damaged bricks and
injections of high strength mortar;
BEFORE AFTER
History:
6. Asinelli Tower: history
– installation of steel frames in order to improve the connection of the two external
layers which compose the “sacco”;
History:
7. Asinelli Tower: history
– Installation of external steel ties in order to provide confinement to the masonry.
History:
10. Local mechanisms
Common mechanisms observed in the Towers:
• Overturning of upper
portion of the wall and
portions of the orthogonal
walls
• Overturning of upper
portion of the wall
59.3m
59.3m