Supertall skyscrapers

Due to the immense weight of skyscrapers, the abject and walls of the lower floors have to be abundantly strong. Pilings are acclimated to ballast the architecture to the basement underground. For example, the Burj Khalifa, the world's tallest architecture as able-bodied as the world's tallest structure, uses distinctively advised and alloyed able concrete. Over 45,000 cubic metres (59,000 cu yd) of concrete, belief added than 110,000 t (120,000 abbreviate tons) were acclimated to assemble the accurate and animate foundation, which appearance 192 piles, with anniversary accumulation getting 1.5 m bore × 43 m continued (4.9 ft × 141 ft) and active added than 50 m (160 ft) deep.1