The Willis Tower (formerly known as, and still referred to by locals as, the Sears Tower) has been bumped from the Council on Tall Buildings & Urban Habitat’s (CTBUH) top ten tallest buildings in the world list with the completion of the Gensler-designed Shanghai Tower in Shanghai, China. The significance of the Willis Tower’s fall from the top ten is in the fact that Chicago, as the birthplace of the skyscraper typology, has consistently been included in the list of top ten tallest buildings for at least the last 50 years. At 1,450 feet tall, the Willis Tower held the position of tallest in the world for 24 years from 1974–1998, when it was topped by the 1,483-foot-tall Petronas Towers in Kuala Lumpur, Malaysia. The Council on Tall Building and Urban Habitat measures buildings “from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flagpoles or other functional-technical equipment” Perhaps in a twist of irony, the tallest buildings in the world that have pushed Chicago out of the rankings have often been designed in Chicago or by Chicago-based offices. Though designed in its San Francisco office, the Shanghai Tower is the work of Chicago-based Gensler. The current world’s tallest building, Dubai's 2,717-foot-tall Burj Khalifa, was designed by Chicago-based SOM, also the designers of the Willis Tower. SOM is also responsible for the design of One World Trade Center in New York, which bumped the Willis Tower from its position as tallest building in the United States. Chicago-based Adrian Smith of Adrian Smith + Gordon Gill, former design partner and head of the Burj Khalifa project at SOM, is also responsible for the Jeddah Tower which will take the crown of tallest in the world when it is completed in 2020, rising over Jeddah, Saudi Arabia, at a height of over 3,300 feet. Though Chicago no longer boasts the tallest skyline, the expertise of its architects is in higher demand than ever. According to the CTBUH, Chicago’s Willis Tower, and many other towers in the United States, will hardly break the top 50 tallest buildings in the world within the next 10 years, yet it can counted on that many of the multitudes of Asian towers soon to be crowding the top will be designed in the city where it all began.
Posts tagged with "Sears Tower":
Skyscrapers are usually admired for their mighty feats of structural engineering. Respect though you might the elegance with which Chicago’s Willis Tower lifts steel and glass 1,451 feet into the sky, you probably wouldn’t want to nuzzle it. A Chicago startup wants to make plush toys with the forms of famous skyscrapers, and Willis is one of their first prototypes. Squeezable Skyline launched their Kickstarter campaign this week, asking for $25,000. The toys would retail for $29.99. The 22-inch Willis replica would be accompanied by a 21-inch Empire State Building. If funded, the team’s line of “huggable high-rises” could include 25 skyscrapers from across the U.S. “Our 'Squeezables' are simplified massings of the real buildings and are designed at a relative scale to look great together as you build your collection,” writes the team—Michael Gordon, and brothers Brent, Glenn and Struan Robertson.
Move over, Willis Tower. The Council on Tall Buildings and Urban Habitat (CTBUH) issued its official ruling Tuesday: New York’s One World Trade Center unseats the Chicago skyscraper as the tallest building in the Western Hemisphere. The new tower’s symbolic height of 1,776 feet was called into question when a design change suggested it might achieve that elevation only through the addition of a removable broadcast antenna. CTBUH counts only structural elements that are considered an integral part of the building’s aesthetic. It was designers Skidmore, Owings & Merrill’s assertion that 1 World Trade Center’s communications equipment represented a permanent architectural feature that persuaded CTBUH to affirm its height. The bottom point of the building was also in dispute. Without antennae, 1 World Trade Center is 1,368 feet tall — the height of the original World Trade Center tower destroyed in the 2001 terrorist attacks on Sept. 11. Chicago’s Willis Tower (also an SOM building), still commonly referred to as the Sears Tower, stands 1,451 feet tall — 1,729 feet tall with antennas. It was the tallest building in the world until 1996, when the Petronas Twin Towers in Kuala Lumpur, Malaysia, won CTBUH’s recognition.
In our pilot Midwest issue, I wrote about The Ledge, a new viewing platform at the Sears Tower (now Willis Tower) in Chicago. At the time, only renderings were available of the SOM-designed all-glass cubes that protrude off of the tower's west face, and the project was expected to open in mid June. Well, it appears that the dizzying new viewing experience is now accepting visitors, as a whole rash of pictures have popped up on flickr. Among them is the above image, which reminds us that sometimes the highest achievement that architecture can aspire to is to fuel the dreams of a child.