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Offener Wettbewerb | 12/2013

Neue Brücke über den Fluss Göta / Ny bro över Göta älv - Hisingsbron

GöteBOX

2. Phase

WilkinsonEyre Architects

Architektur

Ramboll Sverige AB

Bauingenieurwesen

Eadon Consulting Ltd.

sonstige Fachplanung

Erläuterungstext

Architectural Design
The simple, but unique form of our design is driven purely by the constraints of the site and operational requirements. Unusually, the width of the bridge is almost identical to the length of the lifting span. Furthermore, the height of the navigational clearance when the bridge is open to river traffic is also very similar to the width and length of the opening section. When described in three dimensional space, these tri-axial constraints set up an almost perfect cube.

The clarity and concise nature of this diagram is in keeping with the defining characteristics of Scandinavian design; simplicity, minimalism and functionality. The elegance of our proposal will be in the clean and crisp lines that define the geometric form of the primary supporting structure. The faces of both the horizontal and vertical structural members that define the edges of the cube are shaped to allow light to fall on the differently angled surfaces, thereby creating varying tones of light and shadow and reducing their perceived visual mass.

The structure of the bridge deck itself comprises two longitudinal shaped steel boxes which are joined by transverse steel box girders. The pedestrian deck is then cantilevered from the outside edges of the box and varies in height relative to the road deck. This form helps to break up the expanse of the bridge deck when viewed from beneath and also allows daylight to penetrate through the bridge as the walkway rises and falls.

The design does not lay emphasis on either bank of the River Göta, but instead, acts as a gateway from all directions. Both the new River City development to the north and the existing city centre to the south are treated equally. The bold form creates a new landmark that will become synonymous with Gothenburg over years to come. A simple statement that will be adopted by the local community and become an icon for the city allowing global recognition. Paris has the Eiffel Tower, Moscow has St Basil’s Cathedral, Copenhagen has the Little Mermaid, Sydney has the Opera House, Pisa has the Leaning Tower …Gothenburg has The Cube!


Materials
Careful attention has been paid to the selection of materials on the bridge. Our design utilises materials that are durable, attractive and minimise the requirement for maintenance throughout the bridge’s 120 year design life.

In areas where pedestrians will come into direct contact, we have focused on using high quality materials with a tactile nature such as stainless steel, glass and timber. Whereas areas which are not directly accessible by the public utilise more economic materials such as painted and/or galvanised steel.

It is proposed that the pedestrian parapet at the deck edge be fabricated from a painted steel, twin post assembly with an integrated, slim-line LED luminaire that washes light across the walking surface, thereby providing a safe, well lit environment. The infill to the parapet is a high quality stainless steel mesh that maximises transparency and optimises the opportunity for users to enjoy views from the elevated bridge deck.

The inside edge of the pedestrian walkway comprises a toughened laminated, full height glass parapet system. This not only provides a physical barrier between the pedestrians and moving traffic, but also acts as a noise barrier, resulting in an improved environment for pedestrians. At midspan, a bespoke designed stainless steel and timber bench presents pedestrians with the opportunity to sit and enjoy views both on and off the bridge.

The surfacing to the pedestrian walkway utilises an epoxy aggregate surfacing which has the dual function of providing an attractive anti-slip surface whilst also water-proofing the steel deck plate below.

Above water level, the material of the Cube is fabricated from painted steel plate. The precision cutting of the steel plate allows accurate shaping with clean, crisp lines. Facets in the surface of the material cause variations in light and shadow which perform the illusion of reducing the perceived visual mass of the structure which houses the operating mechanism. Just above the water level, the material of the Cube changes to painted stainless steel, allowing the structure to plunge seamlessly into the River Göta.

Beurteilung durch das Preisgericht

A bridge with a conceptually strong expression that alludes to port and gantry crane and with a simple move illustrates the encounter between the mainland and Hising and between river and sea. The sculpted grip is humorous and cocky and expresses that this is it!
The bridge has the potential to become a visual landmark and shows something new that has not been seen before.
The bridge has proven technology and is simple and clear. both manufacturing and maintenance deemed realistic and opening support is effective and can be varied in different heights.
That the openable portion of the bridge also is short in its stretch of the river is positive. The construction would likely cause any problems with falling ice and snow.
The box and the bridge itself is not synchronized and have really two different expressions. That box is so clearly disconnected from city and centered in the river does not to create opportunity the link between the mainland and Hising.
The proposal is in part schematically reported and shows a little of how you thought the design on and under the bridge.
The proposal uses design to protect pedestrians with separated walkways adding value.
Less down movements of pedestrians is an advantage but reduces flexibility for the future somewhat.
The proposal is seen as completed fashioned and static in its concept which defeats the purpose , and do not have large processing facilities.