Siemens City, Vienna

Siemens City, Vienna

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With respect to „green building“, the new company headquarters of Siemens in Austria not only meets the criteria of the EU, but represents an embodiment of the central corporate objective of „sustainability“. This becomes apparent not only in the architecture of the company but also in its fittings. Energy-efficient luminaires with optimum light distribution are one aspect of this.

The main emphasis of the entrance axis is placed on the 4.60 metre high, elegant light building elements. Their asymmetrical, flat beam radiation characteristics produce a homogeneous surface illumination, even when the luminaires are spaced far apart. Energy efficiency also becomes apparent in the lamps used: the 50 W LED luminaire generates 4000 lumens and the 80 W version with compact fluorescent lamps creates a luminous flux of 6000 lumens.

Adjustable BEGA in-ground luminaires illuminate the branches and leaves of the trees with the brilliant light of the 35 W halogen metal halide lamp. In the end, the main attention in the entrance area is drawn to the entrance itself with its projecting roof. With targeted illumination from the ground, the underside of the roof acts as a reflecting surface and, with its brightness, sets an inviting accent.

As soon as the weather permits, the staff are encouraged to go to the park in their breaks, to go for a stroll there or to have lunch in the terrace café. Here the double version of the light building elements with flat beam light distribution are used, which are also installed in the entrance area.

BEGA bollards with single-sided or double-sided light output visually demarcate the pathways in the park, and provide tasteful structural lighting by day and by night. Their internal louvres direct the light onto the ground, and the structured safety glass guarantees a broad spread light distribution.

The recessed wall luminaires can be installed either horizontally or vertically, and are ideal for almost any wall thickness with their shallow installation depth of only 110 mm. The freely radiating light illuminates wall and ground surfaces softly and evenly. Inner and outer rooms provide pleasant lighting for walkways and at the same time serve as architectural accent lighting.

A spiral staircase leads to the seminar areas, producing fascinating spatial impressions. The vertically recessed mounted wall luminaires are also in use here. The freely radiating light allows reliable orientation on the staircase. In addition, the cylindrical core of the staircase is ideal as a reflecting surface and proves itself useful in supporting the gentle basic lighting system.

Efficient BEGA floodlights illuminate all the communication areas on the ground floor.They provide a high level of uniform illumination. This so-called „communication line“ connects the different parts of the building on the company grounds and is designed to be a central meeting point.

A maximum amount of daylight is provided through the large glass roofs and the free zones between the adjoining office wings. At dusk, small BEGA surface washers with their asymmetrical radiation characteristics provide basic lighting for the open zone.

The new tower designed by the Austrian architects’ office Soyka / Silber / Soyka can be recognised evenfrom a distance as the entrance building. The opening side wings and the resulting plaza are architectural design elements which not only represent the impressive nature of the company building but are also an inviting gesture.

Siemens AG Österreich, Vienna

Architekten Soyka / Silber / Soyka ZT-GmbH, Vienna

Lighting design
Dipl.Ing. Pokorny Lichtarchitektur (Eingang/Plaza), Vienna
Architekten Soyka / Silber / Soyka ZT-GmbH, Vienna
Zumtobel Licht GmbH, Vienna

Electrical installation
Elin GmbH & Co. KG, Linz
Siemens Bacon GmbH & Co. KG, Vienna