![]() ![]() They came up with a unique design that included a tubular steel core surrounded by a triangular perimeter frame. ![]() The tower was designed by chief architect Bruce Graham and structural engineer Fazlur Khan of Skidmore, Owings & Merrill LLP (SOM). The Willis Tower has 103 floors and rises 1,451 feet (442 m) tall. It is currently the second tallest building in the United States, after One World Trade Center. When it was completed in 1973, it was the world’s tallest building for 24 years. The Sears Tower is a 108-story, 1,450-foot (442 m) skyscraper in Chicago, Illinois. When it opened in May 1973 it had more than 500 elevators within its walls – each capable of carrying up to 50 people at once – making it one of the most complex buildings ever constructed by man! The building has three main sections: a four-story base building, a nine-story service shaft and a 99-story office building with an observatory on top of it all. It took 3 million man-hours to construct the tower and its various features. The construction of the tower cost $150 million (about $1 billion today). The Sears Tower has 110 stories, stands 1,450 feet (442 meters) high and is 1,729 feet (527 meters) long. It was completed in 1973, making it the tallest building in the world at that time. The Sears Tower was built in Chicago, Illinois, in the 1960s. Michigan Ave., and a parking garage between both buildings that had been used by employees of both buildings all three buildings were designed by Holabird & Root Architects and built between 18 Michigan Ave., the Chicago Athletic Association Building at 410 N. ![]() The tower would be taller than New York City’s Empire State Building (1,250 feet), making it the tallest building in the world.Ĭonstruction began on May 2, 1971, with the demolition of three buildings on the site: The Prudential Building at 401 N. In December 1970, Sears announced plans to build a new high-rise building at 444 N. The 1,454-foot skyscraper was built by the Chicago-based Sears Roebuck & Co., which had been looking for a new headquarters spot since it was planning to move out of its 110-story tower at 233 South Wacker Drive in 1992. The building opened in 1973 and was sold to British insurance company Willis Group Holdings Ltd. The Sears Tower cost $150 million to build, a cost that included the land, labor and materials. During that time there were three fatalities: two iron workers who fell while installing a crane on floor 108 and one worker who was crushed between two pieces of steel while installing a communications antenna on floor 107. ![]() It took only 41 months to build the tower after construction began on August 5, 1967. The tower’s construction cost $150 million in 1970 dollars - which would be about $1 billion today. It was the tallest building in the world until 1998, when it was overtaken by the Petronas Towers in Kuala Lumpur, Malaysia. On May 25, 1973, the Sears Tower officially opened. How much did it cost to build the sears tower Partially completed in May of 1970, the building was officially opened on May 25th, 1973, at a cost of $150 million. The Sears Tower was built by James Ingersoll. The company quickly outgrew its existing building, the Merchandise Mart, and began working with architect Bruce Graham to create a new headquarters that would be an icon for their brand name. The Sears Tower’s conception dates back to 1957 when Sears Roebuck & Company began buying up office space in Chicago. Construction on the tower had taken about two years to complete but the building itself is nearly 100 years younger than its neighboring architecture. On May 25, 1973, the Sears Tower opened to visitors for the first time. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |