Burj+Khalifa

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**__ 1.- DESCRIPTION __**
 * **Built: 4/January/2010 **
 * Burj Khalifa Construction Timeline
 * === January 2004 === || Excavation started ||
 * === February 2004 === || Piling started ||
 * === March 2005 === || Superstructure started ||
 * === June 2006 === || Level 50 reached ||
 * === January 2007 === || Level 100 reached ||
 * === March 2007 === || Level 110 reached ||
 * === April 2007 === || Level 120 reached ||
 * < === May 2007 === || Level 130 reached ||
 * === July 2007 === || Level 141 reached - world's tallest building ||
 * === September 2007 === || Level 150 reached - world's tallest free-standing structure ||
 * === April 2008 === || Level 160 reached - world's tallest man-made structure ||
 * === January 2009 === || Completion of spire - Burj Khalifa tops out ||
 * === September 2009 === || Exterior cladding competed ||
 * === January 2010 === || Official launch ceremony ||
 * Location: Donwtown Dubai, Dubai, United Arabian Emirates**, Asia. **
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 * **Type of structure: **
 * " This structure is a: frame ( framework ) " **
 * Short information about the structure : **The Burj Khalifa skycraper,** known as **Burj Dubai** before to its inauguration, is the tallest manmade structure in the world, at 829.84 m (2,723 ft). Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009. The building officially opened on 4 January 2010,and is part of the new 2 km2(490-acre) flagship development called Donwtown Dubai at the 'First Interchange' along Sheikh Zayed Road, near Dubai's main business district. The tower's architecture and engineering were performed by Skidmore, Owings and Merrill of Chicago, with Adrian Smith as chief architect, and Bill Baker as chief structural engineer. The whole project costed about US$1.5 billion
 * Short information about the structure : **The Burj Khalifa skycraper,** known as **Burj Dubai** before to its inauguration, is the tallest manmade structure in the world, at 829.84 m (2,723 ft). Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009. The building officially opened on 4 January 2010,and is part of the new 2 km2(490-acre) flagship development called Donwtown Dubai at the 'First Interchange' along Sheikh Zayed Road, near Dubai's main business district. The tower's architecture and engineering were performed by Skidmore, Owings and Merrill of Chicago, with Adrian Smith as chief architect, and Bill Baker as chief structural engineer. The whole project costed about US$1.5 billion


 * __2.- WHAT ARE THE MAIN FUNCTIONS OR USES OF THE STRUCTURE? __**

We use the Burj Khalifa as an apartment building, an hotel (quite expensive, if I must say something), and an office building. It's, also a touristic point at the Downtown Burj Khalifa, Dubai.
 * We use the Burj Khalifa for **


 * __3.- WHAT DIFFERENT PARTS ARE THERE? Elements of the structure... __**
 * Columns, pilars, beams, plates, shells, basements, towers, cables, struts, tiles. **
 * __4.- WHAT DO YOU THINK IT IS MADE OF? __** **CONSTRUCTION MATERIALS USED ** //: //
 * Glass, Iron, Wrought iron, Cast iron, Steel, Stainless steel,Concrete, Reinforced concrete, Composite materials, Timber. **


 * __5.- STRESSES IN THE STRUCTURE __**

The spiraling “Y” shaped plan was used to shape the structural core of Burj Khalifa. This design helps to reduce the wind forces on the tower, as well as to keep the structure simple and foster constructability. The structural system can be described as a “buttressed core”, and consists of high performance concrete wall construction. Each of the wings buttress the others via a six-sided central core, or hexagonal hub. This central core provides the torsional resistance of the structure, similar to a closed pipe or axle. Corridor walls extend from the central core to near the end of each wing, terminating in thickened hammer head walls. These corridor walls and hammerhead walls behave similar to the webs and flanges of a beam to resist the wind shears and moments. Perimeter columns and flat plate floor construction complete the system. At mechanical floors, outrigger walls are provided to link the perimeter columns to the interior wall system, allowing the perimeter columns to participate in the lateral load resistance of the structure; hence, all of the vertical concrete is utilized to support both gravity and lateral loads. The result is a tower that is extremely stiff laterally and torsionally. It is also a very efficient structure in that the gravity load resisting system has been utilized so as to maximize its use in resisting lateral loads.


 * __6.- STABILITY, RIGIDITY AND RESISTANCE __**
 * ** This structure is made rigid by : concrete **
 * ** This structure is made stable by : the "Y" form **
 * ** This structure is made resistant by : steel **

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 * __7.- Picture Gallery __**

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 * __8.- More information: __**
 * __<span style="font-family: Tahoma,sans-serif; font-size: 14pt;">9.- CURIOSITIES __**
 * __<span style="font-family: Tahoma,sans-serif; font-size: 14pt;">10.- PERSONAL COMMENTS __**


 * I trully like this structure because it´s the tallest man-made structure in the world. I've loved doing this work, it´s been funny, enjoyble and interesting. **