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Market: Commercial + Office, Hospitality, Mixed Use, Residential, National Geographic Features Burj Khalifa and William Baker in Engineering Marvels Series, The Man Behind the Wonders – Bill Baker Reveals the Secrets of Structural Engineering, William F. Baker in The Engineers on BBC World Service, Structural Engineers Association of Illinois, American Society of Civil Engineers (ASCE) – Architectural Engineering Institute (AEI), Award of Merit: World Voices Sculpture, Burj Khalifa Lobby, GCC Technical Building Project of the Year, International Association for Bridge and Structural Engineering, Excellence in Structural Engineering: Most Innovative Structure, International Projects Category: Outstanding Project, National Council of Structural Engineers Association, Special Recognition for Technological Advancement, 875 North Michigan Avenue – Structural Engineering, Willis Tower (formerly Sears Tower) – Structural Engineering, Poly Real Estate Headquarters – Structural Engineering, Poly Corporation Headquarters – Structural Engineering. Search this site. Adrian Smith is the man for the structural and architectural design of Burj Khalifa. The concrete mix for the piles was a 60 MPa mix based on a triple blend with 25% fly ash, 7% silica fume, and a water to cement ratio of 0.32. The curtain wall of Burj Khalifa is equivalent to 17 football (soccer) fields or 25 American football fields. heights periodically. The tower does not contain any structural transfers. structural system of the Burj Khalifa acts like a single unit creating a tower that acts as one giant concrete beam cantilevering from the ground. For a building of this height and slenderness, wind forces and the resulting motions in the upper levels become dominant factors in the structural design. Other names the building has commonly been known as, including former names, common informal names, local names, etc. The Burj Khalifa is designed to be the centerpiece of the large scale These include a “sky-sourced” ventilation system, in which cool, less humid air is drawn in through the top of the building. Burj Khalifa (Arabic: برج خليفة ‎, "Khalifa Tower") is an extremely tall skyscraper in Dubai, United Arab Emirates named after Khalifa bin Zayed Al Nahyan, and is the tallest building ever built, at 828 metres (2,717 feet).Before the building opened, it was called Burj Dubai.The building is 162 stories high. L-box, V-Box and temperature. 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. ... For example, a steel/concrete indicates a steel structural system located on top of a concrete structural system… Phase I; 23 Boreholes (three with pressuremeter testing) with depths up to 90m. In addition to its aesthetic and functional advantages, the spiraling “Y” shaped plan was utilized to shape the structural core of Burj Khalifa. Structural System Description Burj Khalifa has "refuge floors" at 25 to 30 story intervals that are more fire resistant and have separate air supplies in case of emergency. 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. Each wing is also braced by a series of buttress walls which are connected by coupling beams and radiated from a central closed prismatic tube. Beyond its record-breaking height, the Burj Khalifa incorporates new structural and construction efficiencies to reduce material usage and waste. The spire was constructed from inside the building and jacked to its full height of over 200 metres using a hydraulic pump. In just 1,325 days since excavation work started in January, 2004, Burj Khalifa became the tallest free-standing structure in the world. Architecture. SOM applied a rigorous geometry to the tower that aligned all of the common central core and column elements. Burj Khalifa structural health monitoring Strainstall completed a monitoring contract on the tallest man-made structure ever built - the Burj Khalifa Tower in Dubai. In addition to the standard cube tests, the raft concrete was field tested prior to placement by flow table (Figure 10). In order to rise to the great heights, a proper structural support is necessary. The C60 (cube strength) SCC concrete was placed by the tremie method utilizing polymer slurry. Outriggers at the mechanical floors allow the columns to participate in the lateral load resistance of the structure; hence, all of the vertical concrete is utilized to support both gravity and lateral loads. The construction began on 6 January 2004 and ended in the year 2010. The development and construction of the Burj Khalifa and the Civil Engineering disciplinaries involved . The raft was constructed in four (4) separate pours (three wings and the center core). The aeroelastic and force balance studies used models mostly at 1:500 scale. Structural System Material The tower superstructure of Burj Khalifa is designed as an all reinforced concrete building with high performance concrete from the foundation level to level 156, and is topped with a structural steel braced frame from level 156 to the highest point of the tower. 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). The wall thicknesses and column sizes were fine-tuned to reduce the effects of creep and shrinkage on the individual elements which compose the structure. 2 STRUCTURAL SYSTEM BRIEF DESCRIPTION 2.1 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, entertainment, shopping, leisure, and parking facilities. At 828 meters in height, the Burj Khalifa is the tallest building in the world. It consists of series high-strength reinforced concrete walls: a strong central core is connected to three building wings. Khan's contributions to the design of tall buildings have had a profound impact on architecture and engineering. At the top, the central core emerges and transitions to a special steel framed structure which is sculpted to form a finished spire. The tower is composed of three elements arranged around a central core. The spire of Burj Khalifa is composed of more than 4,000 tons of structural steel. https://civilengineeringupdates.blogspot.com/2013/05/1.html Each tier of the building sets back in a spiral stepping pattern up the building. structural system of the Burj Khalifa acts like a single unit creating a tower that acts as one giant concrete beam cantilevering from the ground. Wind Engineering Design Strainstall have completed a six year monitoring contract on the Burj Khalifa Tower in Dubai - the tallest man-made structure ever built. 3.1 Lateral Load Resisting System. 2. 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. Similar to Burj Khalifa, as each wing is buttressed by the other two, therefore, the stability of the structure is greatly enhanced. 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