How do skyscrapers hold so much weight?

Sharing the Weight In buildings like Chicago's WIllis Tower, modern skyscraper construction methods involve a steel skeleton structure to distribute weight across the vertical beams that support the whole. These beams are riveted end-to-end to form vertical columns, which are connected to horizontal girder beams.



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At 828 meters tall, the Burj Khalifa sways by around 4 to 5 feet owing to wind disturbance. Owing to the excellent construction of these structures, the sway action brought on by strong winds may either be controlled or dampened such that occupants on these upper levels don't feel the building move.

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A 1,000ft building may sway several inches on a day with normal winds. On days with 50mph wind, such a tower may move approximately six inches.

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Hence, staying in top floor of a high-rise building is practically safer than to be in the open street among the stampede of fear-stricken people. Tall buildings offer maximum security from an earthquake jolt if the areas do not fall in the epicenter of extremely powerful earthquake.

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The superstructure is supported by a large reinforced concrete mat, which is in turn supported by bored reinforced concrete piles. The design was based on extensive geotechnical and seismic studies. The mat is 3.7 metres thick and was constructed in four separate pours totaling 12,500 cubic meters of concrete.

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You will take 5.71 s to reach terminal velocity, and you will have travelled 159 m by then. You will travel the remaining 669 m at constant terminal velocity. This will take you 11.94 s. So the total time you will take is 17.65 seconds.

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Visitors have the option of visiting several Burj Khalifa floors: At The Top (Levels 124 &125), At The Top SKY (Level 148) and The Lounge (Levels 152, 153 & 154). Each of these floors hosts an observation deck from where you will get a jaw-dropping view of Dubai.

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