Inaugurated on 4th jan 2010 the burj khalifa at over 828 meters ( 2716.5 feet ) and more than 160 storeys has the highest number of storeys and also highest free standing structure in the world. The architecture is a triple lobed footprint an abstraction of the hymenocallis flower and the tower is composed of three elements arranged around a hexagonal central core which is supported by a series of wings each with its own concrete core which is supported by a series of wings each with its own concrete core and perimeter columns. As the tower increases in height the wings recede in a spiral configuration changing the buildings shape at each tier and thereby reducing the effect of the wind on the building. A three storey podium anchors the tower in place and along with a two storey basement it measures around 2, 000, 000 sq feet 186, 000 sq m ) . Over 1,000 pieces of art selected to the link culture and cummunities from around the world by prominent middle eastern and international artists adorn the tower . Built from 2007 to 2009 the project involved 380 skilled engineers and onsite technicians. To house a variety of commercial , residential and hospitality ventured the tower was build by the chicago based architectural firm of skidmore , Owings & Merrill , Adrian Smith served as a architect and William F Baker served as structural engineer.
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