Capital Gate is a new building forming the entrance to Capital Centre, a major development project in Abu Dhabi and is designed by RMJM Architects. It is an advanced parametrically designed tower sitting at 160 meters featuring a leaning façade of 18 degrees off horizontal. This technically has given it the title of the most substantial lean to a building in the world according to the Guinness Book of World Records.
The building contains a substantial concrete core slightly off center that carries the cantilevered floors. 490 pilings were cored to a depth of 30 meters to counteract the cantilever. A diagrid exterior structure made of triangular tubular steel units creates a ridged mesh to add support and act as a frame for the custom glazing units. The exterior was also developed to reduce the supports mass, thus weight. The triangular glass is a double glazing unit and is custom cut to fit the constantly changing form of the building’s skin. The individual units were installed in a prebuilt panel that was then secured to the diagrid structure. The building’s exhaust air cycled between the panes of glass to lower the radiant temperature.
The program consists of a hotel and office space. A large daylit atrium starts on the 19th floor and is formed by a separate internal diagid. Each floor plate is a unique size and shape. The southern façade has an external screen cascading down the face and forming a canopy at ground level. The screen also covers a significant potion of the southern façade thus reducing direct solar gain by 30%. The Capital Gate Project is to be completed by late 2010.
To commemorate the 9th Annual Skyscraper Competition, eVolo is publishing the Limited Edition Book "eVolo Skyscrapers 2" which is the follow-up to its highly acclaimed book “eVolo Skyscrapers”. The 628-page book examines 150 projects received during the last years of the competition. Only 1000 copies are available worldwide.