Supertall buildings call for creative vertical transportation strategies. Hitachi Ltd. and its Hitachi Elevator Co. Ltd. division have annouced that they will build and install 95 elevators—including two that the manufacturer labels as the "world's fastest"—for the Kohn Pedersen Fox-designed Guangzhou CTF Finance Center, which will be 530 meters (1,738 feet) tall.
The two super-speedy units are designed to ascend at rates of up to 1,200 meters per minute, or about 45 mph, with a rated descent speed of 600 meters per minute. The contract also calls for 23 double-deck models running at up to 540 meters per minute, 13 ultra-high-speed units running at up to 600 meters per minute, and an assortment of medium- and low-speed elevators.)
The fastest elevators will travel a shaft height of 440 meters (from the first to the 95th floor) in about 43 seconds. The design includes a permanent magnet synchronous motor, a compact traction machine (achieved through reducing rope diameters, presumably with the aid of advanced materials), high-capacity inverters, braking materials with high heat resistance (withstanding temperatures exceeding 550°F), and a governor that is designed to control various rated speeds during ascent and descent. Active guide rollers will detect warping in the guide rails and lateral vibration caused by wind pressure, helping to ensure a smoother ride. Hitachi has also devised proprietary air pressure adjustment technology intended to help prevent the common sensation of ear blockage caused by pressure changes.
The upscale mixed-use skyscraper will encompass office, hotel, and residential space, and will be the tallest structure in Guangzhou. A 2016 completion date is planned.
Hitachi's experience with vertical transport for tall buildings includes a unit installed in Tokyo's Kasumigaseki Building in 1968—the world's fastest elevator at the time, at 300 meters per minute. The firm operates a 213-meter-tall research tower specifically for elevator development and testing.
For more, see Hitachi's original release.
Related Stories
| Jan 12, 2015
23 projects win AIA's highest architecture award
Bjarke Ingels' Danish Maritime Museum and William Rawn's Cambridge Public Library are among the winning projects.
| Jan 9, 2015
Santiago Calatrava talks with BBC about St. Nicholas Church on Ground Zero
Calatrava reveals that he wanted to retain the “tiny home” feel of the original church building that was destroyed with the twin towers on 9/11.
| Jan 9, 2015
Nonresidential construction hiring surges in December 2014
The U.S. construction industry added 48,000 jobs in December, including 22,800 jobs in nonresidential construction, according to the Bureau of Labor Statistics preliminary estimate released Jan. 9.
| Jan 9, 2015
10 surprising lessons Perkins+Will has learned about workplace projects
P+W's Janice Barnes shares some of most unexpected lessons from her firm's work on office design projects, including the importance of post-occupancy evaluations and having a cohesive transition strategy for workers.
| Jan 9, 2015
Technology and media tenants, not financial companies, fill up One World Trade Center
The financial sector has almost no presence in the new tower, with creative and media companies, such as magazine publisher Conde Nast, dominating the vast majority of leased space.
| Jan 8, 2015
Microsoft shutters classic clipart gallery: Reaction from a graphic designer
Microsoft shut down its tried-and-true clipart gallery, ridding the world not only of a trope of graphic design, but a nostalgic piece of digital design history, writes HDR's Dylan Coonrad.
| Jan 8, 2015
The future of alternative work spaces: open-access markets, co-working, and in-between spaces
During the past five years, people have begun to actively seek out third places not just to get a day’s work done, but to develop businesses of a new kind and establish themselves as part of a real-time conversation of diverse entrepreneurs, writes Gensler's Shawn Gehle.
Smart Buildings | Jan 7, 2015
NIBS report: Small commercial buildings offer huge energy efficiency retrofit opportunities
The report identifies several barriers to investment in such retrofits, such as the costs and complexity associated with relatively small loan sizes, and issues many small-building owners have in understanding and trusting predicted retrofit outcomes.
| Jan 7, 2015
University of Chicago releases proposed sites for Obama library bid
There are two proposed sites for the plan, both owned by the Chicago Park District in Chicago’s South Side, near the university’s campus in Hyde Park, according to the Chicago Sun-Times.
| Jan 7, 2015
4 audacious projects that could transform Houston
Converting the Astrodome to an urban farm and public park is one of the proposals on the table in Houston, according to news site Houston CultureMap.
