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CREE unveils designs for world’s tallest wooden tower in Austria

Published: 08-Nov-2010

The Creative Renewable Energy and Efficiency Group (CREE) have unveiled designs for Lifecycle tower, said to be the world’s tallest wooden tower, proposed to be built in Dornbirn, Austria.

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The sustainable high-rise building will be a 30-storey mixed-use facility, whose structure will feature different claddings. The Lifecycle tower will incorporate various materials in its construction. Reinforced concrete is proposed for the basement, first and second floor; composite slab of wood or concrete is proposed for slab from second floor onwards; façade columns from second floor up will use timber or wood; and infrastructure core is proposed to be built from optional wood or reinforced concrete with the floor also utilizing glulam (glued laminated) beams. The concrete panels will be prefabricated offsite, helping reduce the construction time by 50%.

The pre-fabricated façade of the Lifecycle tower will consist of windows with glazing, parapet, columns, shadow, and ventilation windows; complete pre-fabricated slabs; and full pre-fabricated building services between the ribs of the slabs with each bar consisting of heat and cooling system, fire alarm system, sprinkler system, illuminating and ventilation system.

Built to Passivhaus standards, the project will see a 90% reduction in carbon emissions compared to conventional buildings. Electricity will be generated from photovoltaic panels and solar heat. The building shell will be composed of Common and Double windows with enhanced noise control and heat protection; integrated sunscreen with light steering; and manual vent windows for natural ventilation. The tower will also feature a green wall.

The tower will also be high earthquake and fire protected. Earthquake protection will be offered with the use of wood for carrying parts, high short time strength and flexible connections. Fire protection will be offered through sprinkler systems, fire alarm system, using wood as carrying parts to keep the strength by heat, sealing each floor with composite reinforced concrete/timber slab, parapets to protect leapfrog effect up the tower, mineral construction, and upto 90m height of construction.

Houses in the proposed tower will be offered either as ‘Passive’ or ‘Plus-Energy’; will be fire-protection certified according to EN 1363-1:1999, EN 1365-2 and DIN EN 13501-2:2008-01 standards; calculated to standards EN, SIA, BS; and usable over the high-rise range. There will be easy and economic utilisation between each floor with low tech – high comfort for building service engineering.

The tower also proposes to protect the environment by using local resources; reduced routes of transports; and purposive use of sustainable materials.

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