At the top, the central core emerges and transitions to a special steel framed structure which is sculpted to form a finished spire. Phase 3: 6 Boreholes (two with pressure meter testing) with depths up to 60m. Keywords: architectural forms, Burj Khalifa, structural components, dynamic wind effects. The top section of the Tower consists of a structural steel spire utilizing a diagonally braced lateral system. The structure was analyzed for gravity (including P-Delta analysis), wind, and seismic loadings by ETABS version 8.4 (Figure 6). An image of the Burj Khalifa is shown in Figure 1. 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. Each wing, with its own high performance concrete corridor walls and perimeter columns, buttresses the others via a six-sided central core, or hexagonal hub. High performance concrete with high compressive strength The tower does not contain any structural transfers. 3.1 Lateral Load Resisting System. The massing of the 828-meter (2,717-foot) tall Burj Khalifa is organized around a central core with three wings, each consisting of four bays (see Figure 2). Fig. Construction of the tower was started in 2004. Each wing buttresses the other through a hexagonal central core as shown in figure-2. Burj Khalifa is home to 57 elevators and 8 escalators the building service/fireman’s elevator have a capacity of 5,500 kg and is the world’s tallest service elevator. Due to its tubular system, proportionally only half the amount of steel was used in the construction, compared to the Empire State Building. The five (5) sets of outriggers, distributed up the building, tie all the vertical load carrying elements together, further ensuring uniform gravity stresses: hence, reducing differential creep movements. The Burj Khalifa tower is crowned with a 4,000 tonnes structural steel telescopic spire, which houses communications equipment. The building was earlier known as Burj Dubai but was renamed in honor of the ruler of Abu Dhabi and the president of the UAE, Khalifa Bin Zayed Al Nahyan. The spiraling “Y” shaped plan was used to reinforce the structural core of Burj Khalifa. Excavation work began for Burj Khalifa the tallest skyscraper in the world in January 2004 and over the years, the building passed many important milestones to become the tallest man-made structure the world has ever seen. An extensive program of wind tunnel tests and other studies were undertaken under the direction of Dr. Peter Irwin of Rowan Williams Davies and Irwin Inc.'s (RWD1) boundary* layer wind tunnels in Guelph. Due to its tubular system, proportionally only half the amount of steel was used in the construction, compared to the Empire State Building. The wind vortices never get organized because at each new tier the wind encounters a different building shape. The curtain wall of Burj Khalifa is equivalent to 17 football (soccer) fields or 25 American football fields. Beyond its record-breaking height, the Burj Khalifa incorporates new structural and construction efficiencies to reduce material usage and waste. Under lateral wind loading, the building deflections are well below commonly used criteria. The crowning glory of Burj Khalifa is its telescopic spire comprised of more than 4000 tons of structural steel. Structural monitoring of Burj Khalifa Tower. The construction began on 6 January 2004 and ended in the year 2010. 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