SUPERSTRUCTURES DESIGN

Superstructures Design

Superstructures Design

Introduction

Burj Khalifa known as Burj Dubai prior to its inauguration is a skyscraper in Dubai, United Arab Emirates, and the tallest man-made structure ever built, at 828 m (2,717 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. The building is part of the 2 km2 (490-acre) flagship development called Downtown Burj Khalifa at the "First Interchange" along Sheikh Zayed Road, near Dubai's main business district.( Baldwin, 2008,128)

The tower's architecture and engineering were performed by Skidmore, Owings, and Merrill of Chicago. Adrian Smith, who started his own firm in 2006, was the chief architect, and Bill Baker was the chief structural engineer for the project. The primary contractor was Samsung C&T of South Korea, who also built the Taipei 101 and Petronas Twin Towers. Major subcontractors included Belgian group Besix and Arabtec from the UAE. Turner Construction Company was chosen as the construction project manager. Under UAE law, the Contractor and the Engineer of Record, Hyder Consulting, is jointly and severally liable for the performance of Burj Khalifa.

Discussion

The total cost for the Burj Khalifa project was about US$1.5 billion; and for the entire new "Downtown Dubai", US$20 billion. Mohamed Ali Alabbar, the Chairman of Emaar Properties, speaking at the Council on Tall Buildings and Urban Habitat 8th World Congress, said in March 2009 that the price of office space at Burj Khalifa had reached US$4,000 per sq ft (over US$43,000 per m2) and that the Armani Residences, also in Burj Khalifa, were selling for US$3,500 per sq ft (over US$37,500 per m2).

The project's completion coincided with a worldwide economic slump and overbuilding, and it has been described as "the latest in string of monuments to architectural vacancy." With Dubai itself mired in a deep financial crisis that forced it to seek repeated billion-dollar bailouts from its oil-rich neighbor Abu Dhabi, the opening ceremony and surprise renaming of the tower to Burj Khalifa, after UAE President Khalifa bin Zayed Al Nahyan, has been viewed by observers as an "attempt to boost confidence in Dubai by showing who is backing Dubai".( Keegan, 2006, 55)

Architecture and design

Photo in January 2008 shows the three-lobed structure

A Hymenocallis flower showing six spokes, as pattern for the three-lobed design

The tower is designed by Skidmore, Owings and Merrill, which also designed the Willis Tower (formerly the Sears Tower) in Chicago, Illinois and 1 World Trade Center in New York City, among numerous other famous high-rises. The building resembles the bundled tube form of the Willis Tower, but is not a bundle tube structure. Its design is reminiscent of Frank Lloyd Wright's vision for The Illinois, a mile-high skyscraper designed for Chicago. According to Marshall Strabala, an SOM architect who worked on the building's design team, Burj Khalifa was designed based on the 73-floor Tower Palace Three, an all-residential building in Seoul, South Korea. In its early planning, Burj Khalifa was intended to be entirely ...