Leaning Tower of Pisa

1
Leaning Tower of Pisa

• Irving Rojas

2
Construction

• The tower began construction in August 1173 and
  continued until 1343.
• The tower was intended to be vertical, but began
  leaning to the southeast during construction due
  to a mere three meter foundation, set in weak ,
  unstable subsoil, which means the design was
  flawed from the beginning.

3
Construction
There were many attempts to halt the incipient
inclination through the use of special
construction devices. In 1272 Giovanni di Simone
tried to compensate for the tilt by building
higher floors with one side taller than the
other, which made the tower begin to lean in the
other direction. Because of this the tower is
actually curved.
4
Architect of Tower of Pisa

• The original architect of the Tower is still
  uncertain and remains a controversy, many believe
  it could have been Bonanno Pisano, a well known
  12th-Century resident artist of Pisa

5
Present

• Today, interventions are being carried out within
  the sub-soil in order to significantly reduce the
  inclination and to make sure that Tower will have
  a long life.