The new first floor of the Eiffel Tower, designed by Moatti-Rivière architects, features a transparent glass floor and balustrades around the central opening of the tower giving a new perspective on the city. The glass floor, which allow visitors to walk 57 meters over the void below, is composed of three layers of laminated safety low-iron glass with an anti-slip top surface. The slightly inclined glass safety balustrade limits the interior perimeter of the opening and includes a hinge mechanism for cleaning both sides of the barrier. The use of glass in such elements demands thorough testing and structural redundancy. Curved glass has been used to create a variable transparent surface sheltering the elevators. The substantial dimensions of the glass units and the confined work space required great care in its installation. The design, testing, fabrication and installation of the glazed elements will be discussed in the paper.
Since finishing her degree in Industrial Engineering at the University of Girona in 2006, Núria Guitart has worked as structural engineer at Strain Engineering S.L., Bellapart engineering consultancy, participating in various projects, from concept through to site. Guitart has specialized in the engineering of lightweight façades, structural glass and non-conventional steel structures.