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
Architects | Aug 28, 2015
How to transition leadership within your architecture firm, Part 2
Close to retiring? Without a plan for leadership transition, you might not foster candidates who will be capable of taking over the reins, says Whitehorn Financial's Steve Whitehorn.
Retail Centers | Aug 27, 2015
Vallco Shopping Mall renovation plans include 'largest green roof in the world'
The new owners of the mall in Cupertino, Calif., intend to transform the outdated shopping mall into a multi-purpose complex, topped by a 30-acre park.
Libraries | Aug 27, 2015
Barack Obama Foundation begins search for presidential library architect
Both national and foreign firms will compete for chance to design the Chicago-based Presidential Center.
Architects | Aug 27, 2015
How to transition leadership within your architecture firm, Part 1
In order for your firm to thrive and preserve your legacy after retirement, it is essential that you create a strategic plan to not only transition ownership of your firm but its leadership as well.
Mixed-Use | Aug 26, 2015
Innovation districts + tech clusters: How the ‘open innovation’ era is revitalizing urban cores
In the race for highly coveted tech companies and startups, cities, institutions, and developers are teaming to form innovation hot pockets.
Office Buildings | Aug 19, 2015
Good design can combat open-office issues
Three tricks to maintain privacy and worker production in a cube-less world, according to GS&P's Jack E. Weber
Architects | Aug 19, 2015
Despite dip, architecture billings remain strong
The American Institute of Architects (AIA) reported the July ABI score was 54.7, down a point from a mark of 55.7 in June.
Architects | Aug 17, 2015
Historic power plant converted to modern offices in Minnesota
A landmark power plant in Owatonna, Minn., damaged in a 2010 flood has new life as the headquarters of Owatonna Public Utilities following a renovation by architects Leo A. Daly.
High-rise Construction | Aug 11, 2015
Calatrava's Turning Torso wins CTBUH's 10 Year Award
The 623-foot, 57-story tower was the world's first twisting skyscraper. Completed in 2005, the building, designed by Santiago Calatrava, rotates 90 degrees along its height.
Architects | Aug 11, 2015
Architecture firm compensation trending upwards
Latest AIA compensation survey finds average compensation for staff positions up 3.5 percent from early 2013
