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
| Mar 29, 2013
Cuningham Group acquires NTD's healthcare practice, expands into key markets
The international design firm Cuningham Group Architecture, Inc. has announced that NTD Healthcare has the joined the company in a strategic expansion. A practice of NTD Architecture, NTD Healthcare joins Cuningham Group with three principals: Wayne Hunter, AIA, NCARB, ACHA and Phillip T. Soule, III, AIA, ACHA in San Diego, along with Maha Abou-Haidar, AIA in Phoenix.
| Mar 27, 2013
Small but mighty: Berkeley public library’s net-zero gem
The Building Team for Berkeley, Calif.’s new 9,500-sf West Branch library aims to achieve net-zero—and possibly net-positive—energy performance with the help of clever passive design techniques.
| Mar 27, 2013
RSMeans cost comparisons: college labs, classrooms, residence halls, student unions
Construction market analysts from RSMeans offer construction costs per square foot for four building types across 25 metro markets.
| Mar 26, 2013
Will Google Glass revolutionize the construction process?
An Australian architect is exploring the benefits of augmented reality in the design and construction process.
| Mar 24, 2013
World's tallest data center opens in New York
Sabey Data Center Properties last week celebrated the completion of the first phase of an adaptive reuse project that will transform the 32-story Verizon Building in Manhattan into a data center facility. When the project is completed, it will be the world's tallest data center.
| Mar 22, 2013
8 cool cultural projects in the works
A soaring opera center in Hong Kong and a multi-tower music center in Calgary are among the latest cultural projects.
| Mar 22, 2013
Earn $500 as a DOE proposal reviewer
The DOE'S Building Technologies Office this morning put out a call to the AEC industry for expert reviewers for its new energy-efficiency initiative for small commercial buildings, which make up more than 90% of the commercial building stock.
| Mar 21, 2013
Best Firms to Work For: Enermodal Engineering is green to the core
At Enermodal Engineering, there’s only one kind of building—a sustainable one.
