This structural system enables the building to support itself laterally and keeps it from twisting. Other Names. The 280,000-square-meter skyscraper contains office, residential, and retail space, along with a Giorgio Armani hotel. 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 center hexagonal walls are buttressed by the wing walls and hammer head walls which behave as the webs and flanges of a beam to resist the wind shears and moments. The structural system employed for Burj Khalifa can be called as the Buttressed Core System. The dynamic analysis indicated the first mode is lateral side sway with a period of 11.3 seconds (Figure 7). General The Burj Khalifa project is a multi-use development tower with a total floor area of 460,000 square meters that includes residential, hotel, commercial, office, entertain-ment, shopping, leisure, and parking facilities. 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. Phase 4: 1 Borehole with cross-hole and down-hole gophysics; depth = 140m. Due to the aggressive conditions present caused by the extremely corrosive ground water, a rigorous program of anti-corrosion measures was required to ensure the durability of the foundations. This enabled construction to proceed without the normal delays associated with column transfers. The Dubai Municipality (DM) specifies Dubai as a UBC97 Zone 2a seismic region (with a seismic zone facior Z = 0.15 and soil profile Sc). Structural System Brief Description 2.1. Ontario (Figure 14). The three-dimensional analysis model consisted of the reinforced concrete walls, link beams, slabs, raft, piles, and the spire structural steel system. High performance concrete with high compressive strength Architecture. At 828 meters in height, the Burj Khalifa is the tallest building in the world. 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. At 828 metres (2,717ft) tall, the tower has 160 floors comprising hotels, restaurants, luxury residences, offices, and the world’s highest swimming pool and outside observation deck. The central pinnacle pipe weighs 350 tonnes (390 short tons; 340 long tons) and has a height of 200 m (660 ft). The second mode is a perpendicular lateral side sway with a period of 10.2 seconds. Built of reinforced concrete and clad in glass, the tower is composed of three elements arranged around a central buttressed core. Lateral load resisting system and floor framing system are the two major components of the superstructure of the Burj Khalifa Tower and these systems are discussed below. Phase 3: 6 Boreholes (two with pressure meter testing) with depths up to 60m. Wind Engineering Design At 828m (2,717ft) tall, the tower has 160 floors of commercial and residential space. Similar to Burj Khalifa, as each wing is buttressed by the other two, therefore, the stability of the structure is greatly enhanced. This design helps to reduce the wind forces on the tower, as well as to keep the structure simple and foster constructability. Keywords: architectural forms, Burj Khalifa, structural components, dynamic wind effects. The setbacks are organized such that the Tower's width changes at each setback. Structural System. The spire was constructed from inside the building and jacked to its full height of over 200 metres (700 feet) using a hydraulic pump. Burj Khalifa is equivalent to 17 football (soccer) fields or 25 American football fields. The spiraling “Y” shaped plan was used to reinforce the structural core of Burj Khalifa. The Khalifa's Tower and Podium structures are currently under construction (Figure 3) and the project is scheduled for topping out in 2008. Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009. The setbacks are organized with the Tower's grid, such that the building stepping is accomplished by aligning columns above with walls below to provide a smooth load path. General The Burj Khalifa project is a multi-use development tower with a total floor area of 460,000 square meters that includes residential, hotel, commercial, office, entertain-ment, shopping, leisure, and parking facilities. 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