Competition
1st Place
Client
University Hospital Cologne, represented by: medfacilities GmbH
Artist
Yoshiyuki Miura
Visualisations
DAY & LIGHT
Period
2013
Project Team DAY & LIGHT
Frank Vetter
On both sides of the new CECAD building, along the Student Way, a seemingly transparent, floating, luminous sphere is visible in the covered area of the walkway. These spheres on either side clearly mark the entrance and exit of the building, but appear almost dematerialised, like a hologram, and cannot be precisely visually determined. Only when approaching does it become clear that the spheres are made up of a multitude of rods, which, through their colour, define a three-dimensional form. The shape stands out in high contrast against the covered area behind it and radiates a pool of light onto the ground like a sun, which also marks the entrance situation.
In the central intersection of the interior, another sphere hovers, differing only in its colour. Particularly in this area, which receives the least daylight, the sphere develops its luminous effect particularly strongly and shapes the space.
As wind blows through the passage, the objects within them move slightly, making this particularly noticeable through the play of light and shadow beneath them.
Cells The sphere as a mathematical ideal form does not occur in nature. There are only approximate forms that show small or large deviations. The sphere here symbolises a single cell and, with its rods, likewise consists of many small components which constantly change their movement. However, together they always form the complete shape. Through its transparency and structural composition, this object is intended to present itself as a symbol of molecular research.
Spatial awareness The three spheres in the Student Way passage characterise the space. They particularly stand out due to clear contrasts, especially against the otherwise relatively dark ceiling. Nevertheless, the space should not appear off-putting due to its darkness but should also be experienced positively. To achieve this, the existing lighting concept will be slightly adapted in a few places:
To alleviate the feeling of being overwhelmed when entering the covered area, the closed side wall is illuminated from the ceiling. The higher luminance expands the space. Likewise, the strong luminance difference of the light spots on the floor is relativised.
In the area between the building entrances, recessed downlights will continue to be used. However, these should be well-shielded from glare and not stand out due to their high inherent luminous density. To achieve this, downlights without a satin-finished cover will be used.
To widen the space into both entrance halls, transparency needs to be improved and mirror reflections eliminated. This is best achieved by brightening the central wall areas behind the stairs. The existing lighting concept already provides for this with two wall washers per floor. To make this more uniform and intense, more wall washers with improved light distribution should be used here.
