Thursday, January 6, 2011

History of the leaning tower of Pisa

The famous Leaning tower of Pisa is sure to impress all those who visit it. It is located in the city of Pisa in Italy and its structure sits in Piazza dei Miracoli (Cathedral square). Visitors are not aware of its history can ask why an important task reflects the poor engineering. The Tower located next to two impressive buildings, the Camposanto and the Duomo, the baptistery.

An Italian sculptor named Bonanno Pisano designed in 1174. Leaning tower of Pisa began slowly sinking just after workers started to build it around 800 years. At the third floor was under construction, workers began to realize that the Tower has been slightly leaning. Problems are produced by the bad choice location to build the tower.

Estuary, trembling ground on which it is located, the structure has begun to sink so bad to leading the leader to halt its construction over the past 90 years. Giovanni di Simone and Tommano Simone placed at the top of the Tower in the 14th century belfry. Then, the Tower has begun it characteristic inclination which captured the imagination of the public.

The Tower shows the dynamics of the different elements that caused his lean with the passage of time. Weight excessive on various areas of further shift caused soil which continues until today.

The Roman design symbolizing with a belfry is a cylindrical shape characterized by six open galleries. Considered as a visual masterpiece for a long time, the design is spectacular. It is located in galleries separated by a series of arches. The base of the tower is bordered by blind geometrically designed arcades. Same arcades are present in the belfry with bells inside.

The Leaning tower of Pisa is loved by many over the years because of its design size. It testifies to the great Italian architecture. After its completion, many engineers, architects and other great minds tried to put an end to the inclination.

Engineers has made an effort in 1934 by installing a device for measuring two directional tilts the tower. Then, they made holes in the Foundation and Grout injected weighing 80 tons of further stabilizing it. The effort was a failure and inclination has increased by an amount of one and a half inch movement. All following efforts failed to halt the Tower up to what efforts began in 1994 to correct the lean lean.

The Government closed tower to the public in 1990 because of security problems of inclination. This decision caused loss of tourist revenue. As the lean Tower has deteriorated, officials began to find a comprehensive solution to the problem.

Stabilization of the tower was assisted by installation of the counterweight on the north side. Slabs cast have been implemented to facilitate the inverse of the lean. Methods of soil extraction resulted in a further decrease in the lean. Efforts continued in 1999 to correct the lean Tower.

So far, it is a fact that engineers cannot remove completely the lean or tourists will stop to visit.

No comments:

Post a Comment