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Burj Khalifa

This episode examines the history of skyscraper breakthroughs that enabled the construction of the Burj Khalifa in Dubai, the tallest man-made structure ever built at 828 meters tall. It discusses seven landmark buildings such as the Equitable Life Building and World Trade Center towers, and the innovations they introduced like elevators that made taller skyscrapers possible by allowing people and materials to reach greater heights. These breakthroughs in areas like materials, cooling, construction speed, resisting wind and earthquakes, and evacuation methods are what allowed the Burj Khalifa to push records for height.

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329 views1 page

Burj Khalifa

This episode examines the history of skyscraper breakthroughs that enabled the construction of the Burj Khalifa in Dubai, the tallest man-made structure ever built at 828 meters tall. It discusses seven landmark buildings such as the Equitable Life Building and World Trade Center towers, and the innovations they introduced like elevators that made taller skyscrapers possible by allowing people and materials to reach greater heights. These breakthroughs in areas like materials, cooling, construction speed, resisting wind and earthquakes, and evacuation methods are what allowed the Burj Khalifa to push records for height.

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We take content rights seriously. If you suspect this is your content, claim it here.
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This episode looks at the history of skyscraper breakthroughs, culminating in the construction of the 828-metre (2,717 ft) tall

Burj Dubai (now Burj Khalifa). The other buildings discussed are the Equitable Life Building, the Flatiron Building, the United Nations Headquarters, the original World Trade Center towers, the Sears Tower and Taipei 101. The Burj Dubai is the tallest man-made structure on earth. To fully understand the complexity of this engineering marvel, NGC examines seven landmark buildings whose contributions in structure and design made it possible for the Burj to soar to record heights. From the climbing cranes used to construct the World Trade Center to the exoskeleton tubes of the Sears Tower, well reveal the ingenious leaps that enabled skyscrapers to evolve, from Big, Bigger, Biggest.

Dubai is the fastest growing city in the world. The Burj Dubai is the tallest man-made structure on earth. This episode looks at the history of skyscraper breakthroughs, culminating in the construction of the 828-metre (2,717 ft) tall Burj Dubai (now Burj Khalifa). The first breakthroughs happens in the XIX th century with a building that is only 43 meters tall. The builders of Equitable Life Building in New York, realized that before buildings can rich taller they must find a way to make people climb higher. 1: MOBILITY The first big obstacle to skyscrapers is the stairs. The solution to the problem was the elevator. The elevator completely transforms the urban landscape. Without elevator the skyscrapers would be impossible. Burj Dubai has 53 elevators. 2: MATERIALS If the buildings approach 80 meters, traditional building materials are no longer strong enough. Stone is too heavy material to build skyscrapers, so the solution for that problem is the steel and concrete (artificial stone). The Burj Dubai is built of reinforced concrete and glass. The glass should be strong enough to resist the high speed wind at the top of the buildings. 3: HEAT A glass wall would allow a lot of light into the building, but also soul a radiation. For that is absolutely necessary artificial cooling. Artificial cooling is possible because of the fine water drops generated in the air-condition. Another solution against the heating problem the fin silver layer of the window that reflect the rises of the sun. 4: SPEED Prefabricated sections assembled like a puzzle. The sections were lifted up with the help of a revolutionary mechanism named canguru crane. Hydraulic pistons push the form up leaving the concrete block behind. Delivering concrete to the top of the tower gets more difficult with every floor. Thats why there were needed powerful pomps. 5: WIND The exoskeleton is the best way of resisting wind ever invented, but for the Burj Dubai that was not enough. The solution for the wind problem was the design that interacts perfect with air pressure. 6: EARTHQUAKE A flexible building is a strong building. The solution for Burj Khalifa was the Massive Reinforced concrete skeleton. One problem was the fragile soil that needed 50 meters down piers to ensure the resistance of the building. 7: EVACUATION 9 Special refuge rooms, built from layers of reinforced concrete.

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