The Burj Khalifa And The Tallest Building

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The Burj Khalifa is the tallest building in the world, and has been since 2009. It is a work place and a home to many people in Dubai. It was formally known as the Burj Dubai but was changed in recognition to Sheik Khalifa who paid for the majority of the building’s construction. The Burj Khalifa is located in Dubai, United Arab Emirates. The building cost 1.5 billion dollars to build. Construction started on January 6th, 2004 and ended on December 31st, 2009. But 1,325 days after construction started it was already the tallest freestanding structure in the world. At the peak of construction, 12,000 workers worked on the building per day. Only three workers died in the process. The building then opened on January 4th, 2010.
The first skyscrapers were built between 1884-1939. Chicago’s Home Insurance Building which opened in 1884 was considered the world’s first skyscraper. It was 138 feet tall. In 1892 Chicago stopped building skyscrapers taller than 150 feet tall. This allowed New York to start developing taller buildings. The economic boom of the 1920’s led to the building of the Chrysler Building and the Empire State Building. As the Great Depression hit, the building of skyscrapers stopped. Since the end of the Great Depression buildings have become taller and taller until we get to the Burj Khalifa at 2,722 feet. The Burj Khalifa is made of glass, steel, aluminum, and reinforced concrete. So much rebar (a steel, reinforcing rod of concrete) was used in the

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