Maribor Shadow Bridge

Slovenia
Competition
2010

SHADOW BRIDGE
The proposed pedestrian bridge would hold a special position in the sequence of bridges in Maribor:

- It would be accessible for pedestrians and cyclists.
- It would be associated with the river.
- It would form a pair with the Glavni Most main bridge – serve as its twin, so to speak – and be in direct changeable and spatial interaction with Glavni Most.
- It would move, turn and shift like the shadow of Glavni Most.

MOVEMENT + SPEED
The proposed pedestrian bridge, the Shadow Bridge, would move as a shadow moves. The characteristic movement would be infinitely slow and hardly perceptible as individual movement. Two fundamental speeds have been proposed:

- In a gradual, continuous movement, the Shadow Bridge will cover a distance of about 100 meters per week, which could be the approximate general speed of operation. The bridge can also be stopped and kept in certain positions for a period of time.

- The bridge may also be “shunted” (like a train) if desired, i.e. be moved “quickly” from one point to another. For shunting the bridge, higher speeds can be applied, such as 10 meters per minute, so that it would move 100 meters in 10 minutes. Such speeds would only be applied in individual cases and under supervision.

THE NEW BRIDGE AS AN OPTICAL DEVICE
A bridge serves to clearly align the gaze of passers-by. Fundamentally, a bridge is a sighting device similar to a weapon’s notch and bead sights. A bridge has the qualities of a telescope and is thus also an instrument to direct and focus the gaze. These qualities make bridges essential tools in urban design, in addition to their role as infrastructure.
What is interesting in this case is that a bridge that can be moved, shifted and aligned like a telescope can be continuously put in a new position in relation to the city, generating a permanently changing reading of the city.
The new bridge roams the city with infinite slowness like a telescope panning over it.

THE NEW BRIDGE AS AN INFRASTRUCTURE TOOL
A movable bridge is an exceedingly interesting tool for infrastructure. Today, it may link Dravska Ulica street to the new Faculty of Medicine; a week later, the bridge may be further to the west, near the new museum. This allows us to avoid a fixed focus. We can assign significance to different spaces along the river at different times. The bridge becomes a movable path.

THE NEW BRIDGE AS A CALENDAR TOOL
The movement and alignment of the bridge can follow elaborate choreographies. The bridge can become a sort of calendar structure by cycling through certain positions:
- It can direct the gaze to a certain building in the city on a certain day of the week (e.g. the church tower on Sunday).
- Its general position can follow the change of the seasons, e.g. with a winter position and a summer position.
- The position and alignment of the bridge can reflect the situation or mood of the city, the weather or the inhabitants. As a movable element, the bridge can be used like a simple communication system.

THE NEW BRIDGE AS A MEMORY TOOL
The bridge’s movement is slow, like a moored boat or raft drifting back and forth. In the course of our work on the project, we noticed that the new bridge, the Shadow Bridge, moves back and forth like an oversized moored boat, floating away on a fictional current and brought back by the resistance of the mooring. It creates an image reminiscent of the rafts moored along the banks of the river Lent.


Collaborators

Mitarbeiter | Collaborator
Mitarbeiter | Collaborator

Consultants
Peter Bauer, Thomas Eschenbacher
Tragwerksplanung | Structural Engineering
Martin Lechner, Hans Frey
Brückenbau | Bridge construction
Armin Hess
Basics 43/4
Maribor Schattenbrücke Grundlagen mar_shadows_of_glavni_most_white0
 
 
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Pos. 1: THURSDAY 23 Feb. 2012 10:23 Pos. 2: FRIDAY 24 Feb. 2012 11:51 Pos 3: SATURDAY 25.02.2012 14:21 Uhr Pos 4: SUNDAY 26.02.2012 09:58 Uhr  
Pos. 1: DONNERSTAG 23.02.2012 10:23 Uhr Pos. 2: FREITAG 24.02.2012 11:51 Uhr Pos 3: SAMSTAG 25.02.2012 14:21 Uhr Pos 4: SONNTAG 26.02.2012 09:58 Uhr  
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Maribor Schattenbrücke Grundlagen mar_urban_relais_11
URBAN RELAY 1 The Shadow Bridge drifts from its home position upstream or downstream. Two main speed settings are available: _Normal speed is approx. 70m/week. _Switching speed for technical reasons and fast-forward motion 10m/min. Switching speed is a strictly monitored movement. By moving the Shadow Bridge from one position to the other slight disturbances in the urban fabric occur. Shifts of the bridge lead to shifts in the spatial structure. Emphasis will shift from one part of the city to another.  
STADTRELAIS 1 Die Schattenbrücke verschiebt sich mit und gegen den Strom. 2 Geschwindigkeiten stehen zur Verfügung: _Normalgeschwindigkeit mit ca. 70m / Woche _Service-, Verschubmodus und Schnellvorlauf ca. 10m / Minute. Der Verschubmodus wird nur als überwachte Bewegung ausgeführt. Die langsame Bewegung der Schattenbrücke führt zu einer leichten Verstörung oder Verunsicherung im Gewebe der Stadt. Mit dem Verrücken der Brücke wird auch das räumliche Gefüge verrückt. Räumliche Betonungen werden verschoben.  
Maribor Schattenbrücke Grundlagen mar_urban_relais_21
URBAN RELAY 2 The Shadow Bridge is a panoramic device. Its northern abutment pivots from Dravca Ulica towards Mesarski Prehod in infinitely slow motion. Its slow movement continuously shifts the gaze of passers-by. A slight disturbance in the urban fabric occurs.  
STADTRELAIS 2 Die Schattenbrücke funktioniert wie ein schwenkbares Fernrohr. Ihr nördliches Auflager dreht sich unendlich langsam von Dravca Ulica nach Mesarski Prehod. Ihre langsamen Bewegungen schwenken den Blick des Passanten kontinuierlich. Es ereignet sich eine leichte Verstörung im Gewebe der Stadt.  
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URBAN RELAY 3 The Shadow Bridge is a sensor and indicator. Its distance from its home position may describe: _Meteorological data (sunshine, rain etc.) _Ecological data (temperature, CO2, ozone etc) _Demographic data (citizen growth, bridge occupancy etc)  
STADTRELAIS 3 Die Schattenbrücke ist ein Sensor und Anzeigegerät. Der Grad ihrer Bewegung kann folgende Daten anzeigen: _Meteorologische Daten wie Sonnenscheindauer, Regenmenge... _Ökologische Daten wie Temperatur, CO2, Ozon… _Demographische Daten wie Einwohnerzahlen, Brückennutzung...  
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URBAN RELAY 4 Shadow Bridge position e.g. on Monday 2nd of July: The Shadow Bridge is very close to Glavni Most. The serpentine path at the Tabor side is connected directly to the eastern branch of Dravska Ulica at the Lent embankment. Shadow Bridge position e.g. on Friday 6th of July: The Shadow Bridge slips under Glavni Most in infinitely slow motion. The new Medical University is connected directly to the western branch of Dravska Ulica. A slight disturbance in the urban fabric occurs.  
STADTRELAIS 4 Position der Schattenbrücke z. B. am Montag den 2. Juli: Die Schattenbrücke liegt direkt an Glavni Most. Der Serpentinenweg auf der Taborseite wird mit Hilfe der Schattenbrücke direkt an die östliche Dravska Ulica am Lentufer angeschlossen. Position der Schattenbrücke z.B.: am Freitag den 6. Juli: Die Schattenbrücke bewegt sich in unendlich langsamer Bewegung direkt unter die Bögen der bestehenden Glavni Most. Die neue medizinische Universität wird mithilfe der Schattenbrücke direkt an die östliche Dravska Ulica angeschlossen. Es ereignet sich eine leichte Verstörung im Gewebe der Stadt.  
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Plans 33/3
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Animations 33/3
Topview

Schattenbrücke
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Schattenbrücke
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Perspective

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Axonometric

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Maribor Schattenbrücke Ansichten mar_c19_posa
THURSDAY 23 Feb. 2012 10:23  
DONNERSTAG 23.02.2012 10:23 Uhr Rendering: Isochrom  
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WEDNESDAY 29 Feb. 2012 11:48  
MITTWOCH 29.02.2012 11:48 Uhr Rendering: Isochrom  
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SHOT - WEDNESDAY 29 Feb. 2012 11:49  
SCHUSS - MITTWOCH 29.02.2012 11:49 Uhr Rendering: Isochrom  
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REVERSE SHOT - WEDNESDAY 29 Feb. 2012 11:49  
GEGENSCHUSS - MITTWOCH 29.02.2012 11:49 Uhr Rendering: Isochrom  
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