Abstract
The article concerns the diagnosis of the technical condition, as well as the possibilities of renovating, the Leaning Tower located in Zabkowice Slaskie in Lower Silesia, Poland. Damage to the structure of the facility, which occurred in 2015, constituted the basis for carrying out tests and measurements in order to enable the causes of the damage to be determined. The resulting damage is cracks in brick walls. Cracks were formed in the place where the proper structure of the Tower was connected with the staircase constituting the extension of the building. Therefore, it was necessary to carry out diagnostic work. The conducted diagnostic works resulted in the obtaining of knowledge about the technical condition of the facility, and the possibilities of the necessary repair works, which will ensure the further safe operation of the facility. It was considered necessary to stabilize the ground under the staircase by making micropiles. Cracks in the walls were stabilized by making steel ties, rebuilt and reinforced with steel bars. The Leaning Tower, as a historic and unique building in Europe, requires special technical supervision, which will guarantee that it remains in its prime for many years to come and continue to be one of the key tourist attractions of Zabkowice Slaskie.
Highlights
The article concerns the diagnosis of the technical condition, as well as the possibilities of renovating, the Leaning Tower located in Zabkowice Slaskie in Lower Silesia, Poland
The lower part of the tower is made of crushed stone up to a height of about 5 m above the ground, and its higher part is made of solid brick with lime mortar
As a result of expert works, the occurrence of cracks and scratches was found at the connection of the tower with the outbuilding, which is a housing for the fanshaped stairs leading to the first usable level of the Leaning Tower
Summary
The Leaning Tower is a rare Gothic example of a free-standing belfry. The facility is located on the street named St.Wojciech in Zabkowice Slaskie in the immediate vicinity of the church of St. The tower is in a line with terraced tenement houses, has eight floors, and its south-eastern wall partially adjoins a residential and service building. The lowest storey, about 10 m above ground level, is covered with a cross-shaped ceramic vault made of solid brick and filled with a backfill on which joists and a wooden floor are placed. An outbuilding adjoins to the south-west side of the tower, and is an entrance to its lowest level. From this level it is possible to get to the “starvation” dungeon located below the central part of the tower. In the outbuilding there are fan-shaped sandstone stairs, and in the central part of the tower there are corridors with brick stairs lined with wooden treads.
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