Gambetta Portada Web
GAMBETTA
Paris
PROJECT DESCRIPTION

This project concerns the renovation of the current roof of an atrium of an office building in Paris. The existing structure of the current roof is conserved and rehabilitated, and a new structure is placed on top of it for the installation of the screen printed ETFE cushions. The objective of this rehabilitation is the improvement of the building enclosure (thermal insulation) and of the passage of natural light to guarantee light comfort in the offices.

TECHNICAL BASE

For the renovation of the surroundings of Kultur Etxea in Romo (Getxo), Vizcaya, IASO has manufactured and installed a structure with hyperbolic paraboloid geometry to create a shaded area in the part of said square that has seating.

The structure, in plan view, has dimensions of 15 m length x 5 m width, covering a surface area from above of 75 m². Its height is 3.15 m at the lowest point and 4.45 m at the highest. Moreover, the pillars protrude at the top, reaching a height of 5.53 m. The structure is fixed to the foundations by means of two central pillars. The canvas is a single piece, of 1002 fabric of the Ferrari make. It is fixed at each end by canvas presses, and by a perimeter cable joined to the canvas by bags so that it can be tensioned.

TECHNICAL BASE

The original roof was composed of a frame of steel beams covered with curved polycarbonate panels and fibreglass fabric coated with PTFE.                                                                                         

The beams are kept and reinforcements are added between the lattice beams. Following this, a new structure is added which consists in adding abutments and intermediate beams to reduce the width of the cushions.                                 

Then, 22 trapozoidal cushions are installed, of which 16 units are of 3 layers and 6 units of 4 layers of ETFE with screen printing and white lacquered aluminium profiles.