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Structure in General
The density of the screen varies depending on the orientation: 25% opacity on the north elevation, 40% on the south, 60% on the east and west.
From a distance, the tower appears to have a uniform facade; the facade's intricacy and varied density become apparent at close quarters.
The glass of the inner-layer curtain wall is slightly reflective so as to help reduce solar gain.
The outer layer is inspired by "mashrabiya" screens found in traditional Islamic architecture, and which serve to protect from the sun's heat and glare, and grant privacy.
The screen serves to shade the tower from the heat, but also helps protect from sand residue forming on the glass behind it.
There is a restaurant at level 42 offering panoramic views of the city of Doha and the Corniche.
The building envelope consists of two layers, a metal brise-soleil with an aluminium-and-glass curtain wall behind.
Solar blinds are also available behind the curtain wall.
The built-in spire atop the building is a lightning rod.
There is a walkway between the sunscreen and inner layer to enable the curtain wall to be cleaned.
At the top of the tower, at 182m, there a full-span dome housing a private residence.
A programmed external lighting system with LEDs in the facade illuminates the tower at night.
A large atrium inside the building runs from the ground to the 27th floor, reaching a height of 112m.
The diameter of the cylindrical tower is 45m.
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Emporis Skyscraper Award Year 2012
Floors (above ground)
Floors (below ground)
Ateliers Jean Nouvel
Dar Al-Handasah (Shair and Partners)
Arab Engineering Bureau
China Construction Design International
Also recorded for this building:
MEP engineering, construction company, developer, elevator supplier, facade consultant, project management, quantity surveyor, structural engineering
Features & Amenities
Elevator destination control
Raised floors are available
Sunshading devices are built in
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