What is the tallest building in the world?

As of 20 13, the tallest building that has been built and put into use in the world is Burj Khalifa in Dubai, United Arab Emirates. The Burj Dubai, which took six years to build, is not only the tallest building in the world, but also has many other "tallest" titles, including the tallest independent structure, the tallest floor, the tallest use floor, the tallest outdoor sightseeing platform (124th floor), the tallest bar (143rd floor) and the tallest mosque (/kloc-0

Burj Dubai is 828 meters high, with floors 162 above ground, which is almost the overlapping height of two Shanghai Jinmao towers (88 floors, 420.5 meters). Burj Khalifa was jointly designed by SOM Architectural Design Company of the United States and architect adrian smith. Construction started on June 5438+ 10, 2004, and was completed and put into use on October 20 10/0/0.

Burj Khalifa after completion

Since ancient times, people have generally regarded the construction of high-rise buildings as a symbol of strong economic strength and superb technical level, so the "world's tallest" competition has always been a highly competitive project, and the construction process of Burj Dubai is also a process of constantly breaking the world record. In February, 2007, it surpassed the Wells Building in Chicago, USA (1 10 floors above ground, with a height of 443 meters) and became the tallest building in the world. In July, it surpassed the Taipei 10 1 building, which was 508 meters high, and became the tallest building on the surface. In September, the National Television Tower of Canada in Toronto was over 555.33 meters high, making it the tallest independent building in the world. In April 2008, KVLY TV Tower, which is 628.8 meters higher than North Dakota, became the tallest man-made building in the world. June 5438+October 2009 10, the final height of Burj Khalifa reached 828 meters, setting a new Guinness record.

The architect of Burj Khalifa was inspired by the local desert plant Spider Orchid and created a three-petal structure. The wings of the tower extend outward from the core, just as petals grow from the stem. As the tower rises, the Y-shaped structure retreats step by step, forming a stable structure with a big bottom and a small top. This can prevent the wind from forming a vortex on the tower surface. The core tube in the middle forms a sculptural spire from the top, which can be seen from about 100 km away. The hotel is located below the 39th floor of the building, and the 45th ~108th floor is an ultra-luxury apartment. There is also an observation deck on the124th floor overlooking the whole city of Dubai. Burj Dubai is also used as a club, library, restaurant, swimming pool and mosque, with a total investment of more than 7 billion US dollars.

In order to build Burj Khalifa, a total of 330,000 cubic meters of concrete, 39,000 tons of steel and 6,543.8+0.42 million square meters of glass were used, and only 45,000 cubic meters of concrete weighing more than 6,543.8+0,654.38+0.000 million tons was used for the foundation, and 6,543.8+0.92 piles with a depth of more than 50 meters were driven. This skyscraper uses as many as 310.4 million tons of steel bars. If these steel bars are connected end to end, they can almost circle the earth 1/4 times.

Just like the process of building the Tower of Babel described in the Bible, Burj Khalifa also embodies the sweat and wisdom of many national workers in the world. During the peak construction period, 12000 workers and contractors from more than 100 countries gather at the construction site every day.