BURJ KHALIFA The tallest building in the world Submitted To: Vidya Narayan BURJ KHALIFA The tallest building in the world SUBMITTED BY: Bhinderjit Singh Charandeep Kaur Manpreet Kaur Thind Ankit Yadav

Introduction Why Burj Dubai becomes Burj Khalifa?? Planning and construction Architecture Scope Project management Cost Management Time Management Factors Affecting time and cost Burj khalifa construction team Risk management Success/ Failure Software Used Facts and Figures Comparison between buildings References

Burj Khalifa, earlier known as Burj Dubai, located in Downtown Dubai UAE. Burj Khalifa is tallest man made structure in the world. Burj Khalifa developed by the leading developer Emaar Properties Construction of the project began on 21st September 2004 and the building officially opened on 4 January 2010  Burj Khalifa is as a living wonder, a stunning piece of art, and incomparable feat of engineering.

Why Burj Dubai becomes Burj Khalifa?? Burj Dubai was officially renamed by Dubai’s ruler as the Burj Khalifa named after the UAE president Sheikh Khalifa Bin Zayed.

The primary design concept of the tower is an organic form with tri-axial geometry and spiraling growth that can be easily seen in the final design The floor plan of the tower consists of a tri-axial, “Y” shaped plan, formed by having three separate wings connected to a central core

Over 45,000 m3 of concrete, weighing more than 110,000 tonnes were used to construct the concrete and steel foundation  Burj Khalifa's construction will have used 330,000 m3 of concrete and 39,000 tonnes of steel rebar, and construction will have taken 22 million man-hours The amount of rebar used for the tower is 31,400 metric tons - laid end to end this would extend over a quarter of the way around the world.

Architecture The architecture features a triple-lobed footprint, an abstraction of the Hymenocallis flower The tower is composed of three elements arranged around a central core The modular, Y-shaped structure, with setbacks along each of its three wings provides an inherently stable configuration for the structure and provides good floor plates for residential The central core emerges at the top and culminates in a sculpted spire

Scope The project scope is the definition of what the project is supposed to accomplish and the budget of both time and money that has been created to achieve these objectives.” The initial planned costs of the Burj Khalifa project was $876 million dollars The initial planned height was 728 meters from the ground

SCOPE CONTINUED.. Burj Khalifa (Burj Dubai) is the tallest man-made structure ever built. The mixed use development will include residential units, offices, hotels and residential apartments. Burj Khalifa was planned by the Dubai government with the aim of becoming a hub for finance, trade and tourism in Middle East

“Iron Triangle”, a criterion which measures the project based on three perspectives: COST TIME QUALITY

The initial planned costs of the project was 876 million dollars The initial planned costs of the project was 876 million dollars. The final cost, however, was approximately 1.5 billion dollar The final construction was 100 meters higher than the original design Changes in interior design planning were another reason for the increase in costs

TIME MANAGEMENT Originally, the duration of project was set for forty-seven months, starting from February 2005 to December 2008 The Burj Khalifa project was completed nine months later, on September 2009. Economical decline halted construction for four months in 2008.

Temperature rising over 45 degrees, wind, sun and gravity Rise in price of raw materials and special kind of reinforced concrete for construction, special type of glass panels with aluminium used to protect this structure from wind, dust and sun. Construction cost.

Cont’d…. Emaar was also affected by the downturn in the real estate market in Dubai. In late 2008, the price of property at Burj Dubai slumped by about 50%-60%, while prices in the surrounding Downtown Burj Dubai fell by at least 22% First of all, a rise in prices of raw materials had gone up significantly due to the downturn of the global economy in 2008. According to report of Global Informing (2008), the price of iron had increased by 75% within a year. Other materials such as aluminum and cement also increased Increase of price of commodities caused a factor to increase construction cost.

Burj Khalifa Construction team Burj Khalifa was truly an international collaboration between more than 30 on-site contracting companies from nations around the world. At the peak of construction, over 12,000 workers and constructors were on site every day, representing more than 100 nationalities. Workers include mostly Indian, Pakistan and Srilankan

Change in Design The final construction was 100 meters higher than the original design The changes were made in interior design on the demand of Armani hotels

Bad Employee Management In 2006, the project, which had till then been progressing slightly ahead of schedule, fell behind schedule. Workers from countries like India, Pakistan, and Bangladesh, were used to construct the towers and they complained that they were being paid very low wages.

The engineers of the tower worked the design of the structure to avoid the two major challenges; wind and gravity. The highest-risk part of the Burj Khalifa is its high speed elevators To ensure safety, the Burj Khalifa features a home automation system which consists of LCD panels that display detailed emergency information to specified groups of building occupants.

Samsung engineering and Besix, introduced new technologies based on previous experiences with tall building construction. Following technologies were used for building Burj Khalifa : The ETABS software developed by Computers & Structures Inc., of USA was used for the analysis and design. Prolog Manager is a Windows-based construction project management application

From the point of quality : The project is successful The net profit increased 10 times compared to 2009

Former names: Burj Dubai Preceded by: Taipei 101 Location : Dubai, United Arab Emirates Construction started: January 2004 Construction ended : 2010 Opening: 4 January 2010 Cost : USD $ 1.5 billion Building with most floors: 160

Cont’d…. Height Antenna spire : 829.84 m (2,723 ft) Roof : 828 m (2,717 ft) Top floor : 621.3 m (2,038 ft) Architect : Adrian Smith Developer : Emaar Properties Structural engineer : Bill Baker 

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