Burj Khalifa

Tallest structure in the world located in Dubai The project was completed at a cost of $1.5bn It is a multipurpose tower which includes

corporate, hotels, residential apartments etc It took complete five years to finish the

project. It was officially launched on 4th of

January,2010

Armani Hotel Dubai

160 guestrooms and suites

Armani Residences Dubai

144 private residences

The Park

11 hectares park, 6 water features

3000 underground parking spaces

World Records

At over 828 mts and more than 160 stories, Burj Khalifa holds the following records:• Tallest building in the world• Tallest free-standing structure in the world• Highest number of stories in the world• Highest occupied floor in the world• Highest outdoor observation deck in the world• Elevator with the longest travel distance in the world• Tallest service elevator in the world

Purpose• Burj Khalifa has been designed to be the centerpiece

of a large-scale, mixed-use development• That will include 30,000homes, 9hotels ,3 hectares

of parkland, at least 19residential towers, the Dubai Mall, and the 12-hectare man-made Burj Khalifa Lake

• The decision to build Burj Khalifa is reportedly based on the government's decision to diversify from an oil-based economy to one that is service-and tourism-oriented

• According to officials, it is necessary for projects like Burj Khalifa to be built in the city to grab more international recognition

Architecture • The design of Burj Khalifa is derived from patterning s

ystem embodied in Islamic architecture• Burj Khalifa is expected to hold up to 35,000 people

at any one time• A total of 57 elevators and 8 escalators are installed.

The elevators have a capacity of 12 to 14people per cabin, the fastest rising and descending at up to 18 m/s(59 ft/s).Elevators Speed = 35 km/h & biggest one can get 46 passengers at a time.

• The Burj Khalifa's water system supplies an average of 946,000 litters of water per day. Burj Khalifa used 30000 tons steel and 30000 Glasses and having weight of half a million tons.

Foundation• The superstructure is supported by a large reinforced

concrete mat, which is in turn supported by bored reinforced concrete piles.

• The design was based on extensive geotechnical and seismic studies.

• The mat is 3.7 meters thick, and was constructed in four separate pours totaling 12,500 cubic meters of concrete.

Foundation

• The 1.5 meter diameter x 43 meter long piles represent the largest and longest piles conventionally available in the region.

• A high density, low permeability concrete was used in the foundations, as well as a cathodic protection system under the mat, to minimize any detrimental effects form corrosive chemicals in local ground water

Structural System

• In addition to its aesthetic and functional advantages, the spiraling “Y” shaped plan was utilized 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 consists of high performance concrete wall. Each of the wings buttress the others via a six-sided central core, or hexagonal hub.

• Central core provides the torsional resistance of the structure, similar to a closed pipe or axle.

.

Corridor• 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;

Corridor

• 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 torsion ally. • 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.

Floor Plan

• Concourse level to level 8 and level 38 and 39 will feature the Armani Hotel Dubai. Levels 9 to 16 will exclusively house luxurious one and two bedroom Armani Residences.

• Floors 45 through 108 are private ultra-luxury residences. The corporate suites occupy fill most of the remaining floors, except for level 122 which houses a restaurant and level 124, the tower‘s public observatory.

• For the convenience of home owners, the tower has been divided in to sections with exclusive Sky Lobbies on Levels 43, 76 and 123 that feature state-of-the-art fitness facilities including a Jacuzzis on Level 43 and 76.

• The Sky Lobbies on 43 and 76 additionally house swimming pools and a recreational room each that can be utilized for gatherings and lifestyle events.

• Offering an unparalleled experience, both pools open to the outside offering residents the option of swimming from inside to the outside balcony.

• Other facilities for residents include a Residents' Library, and Burj Khalifa Gourmet Market, a gourmet convenience store and meeting place for the residents. Valet parking will be provided for guests and visitors.

Exterior Cladding

The exterior cladding is comprised of reflective glazing with aluminum and textured stainless steel spandrel panels and stainless steel vertical tubular fins. Close to 26,000 glass panels, each individually hand-cut, were used in the exterior cladding of Burj Khalifa. Over 300 cladding specialists from China were brought in for the cladding work on the tower. The cladding system is designed to withstand Dubai's extreme summer heat, and to further ensure its integrity, a World War II airplane engine was used for dynamic wind and water testing. The curtain wall of Burj Khalifa is equivalent to 17 football (soccer) fields or 25 American football fields.