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2015-03-19

Noise Protection Hangar for Airliners at Zurich International Airport, Switzerland

Regular maintenance and repairs of an aircraft include performing aircraft engine testing.

For the protection of the residents in nearby communities, Flughafen Zürich AG (FZAG) commissioned the planning of a noise protection hangar which goes beyond the legal requirements for noise protection.

Dlubal Software customer WTM Engineers worked on this project together with Suisseplan Zurich, GAC German Airport Consulting, and LSB Gesellschaft für Lärmschutz, bringing it to a successful conclusion in June 2014.

WTM Engineers performed the structural analysis of the spatial supporting structure of the noise protection hangar with RSTAB and designed it with STEEL SIA according to the Swiss steel construction standard SIA 263.

Main Supporting Structure

The roof structure with an area of 559,723.3 ft2 is supported by an external steel structure consisting of spatial and flat trusses as well as stiffening bracings. The maximum span is 258 ft. The hangar can accommodate aircraft up to the size of a Boeing 747‑8 with a wing span of 225 ft.

The main supporting elements are two truss frames with ridge releases, which span the whole hangar and support it in the transverse direction. The frames are restrained to foundation blocks on the support nodes. A truss girder spans the rear opening, which is integrated into the gable wall.

In the longitudinal direction, trusses are placed in the apex zone at the side walls of the enclosure, which are attached to the main truss frames. They cantilever about 111 ft to the top of the hangar. External spatial three-chord truss girders are linked to the main supporting structure to hold the trapezoidal cross‑sections of the roof.

With the noise protection hangar at Zurich International Airport, a building with appealing architecture has been created.



Project Specifications

Model data

Number of Nodes 948
Number of Members 2360
Number of Load Cases 1
Total Weight 657.065 tons
Dimensions 298.92 x 289.74 x 83.98 feet
Program Version 8.04.01

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