Is the Eiffel Tower mounted on cylinders?
Friday 28 June 2019
Modified the 28/06/19
Having started in the early summer of 1887, the assembly of the Tower required the installation of large wooden scaffolding. Because the four oblique pillars, spaced 328 feet (100 meters) apart, were simultaneously launched skyward and had to rely on temporary structures. Similarly, the large first floor beams temporarily rested on 148-feet (45-meter) high scaffolding. The columns and the beams had to be connected with a very high degree of precision, so that the holes drilled previously for the installation of the rivets would meet precisely, and one had to find the means to regulate their exact position.
A simple hand pump!
To control the removal of the scaffolding, boxes of sand that could be emptied gradually were interposed between them with metal elements, mounted slightly above their normal position. In addition, two of the columns were equipped with hydraulic cylinders positioned at their base.
Driven by a simple hand pump, they could raise or lower the cylinders by a few centimeters. Once the first floor was fully assembled, these cylinders were removed and replaced by permanent wedges. You can still see the housing of these cylinders at the base of the columns. The tower was mounted on cylinders but this was only during the period of construction
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