The gridshell is regarded as one of the most efficient load bearing structures. The latticework of linear, rod-like elements can span large areas with a minimum of material.
PlusMinus combines efficiency and aesthetics. The latticework is formed by inflated film tubes which are flexibly connected with each other via the joints. By inflating the tubes, the structure erects itself – thereby doing away with the need for time-intensive auxiliary constructions.
Building with positive and negative pressures
In order to preserve the structure’s stability, the tubes must be continually supplied with an air pressure of approx. 0.5 – 0.7 bar. In order to achieve the reinforcement effect, two shell films are vacuum sealed above and below the tube latticework and press the air-filled tubes to the joints.
Supply unit: semi-automatic external control
The LRP-1/4-2.5 pressure regulators and MS maintenance device combination from Festo provide precise pressure regulation for the tubes and thus ensure the stability of the temporary structure. The positive pressure in the tubes is detected with SDE5 D10 sensors from Festo. In the field of automation, these Festo components secure the daily operation of factories around the world.