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
| Feb 23, 2011
The library is dead, long live the library
The Society for College and University Planning asked its members to voice their thoughts on the possible death of academic libraries. And many did. The good news? It's not all bad news. A summary of their members' comments appears on the SCUP blog.
| Feb 23, 2011
Data center trends: green design, technology upgrades
While green data centers will continue to be a trend within the industry, technology is also driving infrastructure upgrades that have never been seen before, according to the 2011 Data Center Technical Market Report from Environmental Systems Design. The report also includes an overview of the national data center market, construction costs, blackouts and disaster prevention, and site selection.
| Feb 23, 2011
“School of Tomorrow” student design competition winners selected
The American Institute of Architecture Students (AIAS) and Kawneer Company, Inc. announced the winners of the “Schools of Tomorrow” student design competition. The Kawneer-sponsored competition, now in its fifth year, challenged students to learn about building materials, specifically architectural aluminum building products and systems in the design of a modern and creative school for students ranging from kindergarten to sixth grade. Ball State University’s Susan Butts was awarded first place and $2,500 for “Propel Elementary School.”
| Feb 23, 2011
Barbie's newest career: Architect
Mattel is introducing Architect Barbie this fall, following a campaign that started in 2002 to give the iconic blond a design job. The doll comes in a signature pink outfit, but if she's truly hoping to pass an an architect, shouldn't she be wearing all black?
| Feb 23, 2011
Green building on the chopping block in House spending measure
Bryan Howard, Legislative Director of the U.S. Green Building Council, blogs about proposed GOP budget cuts that could impact green building in the commercial sector.
| Feb 23, 2011
Architecture Billings hold steady after two months of improving conditions
After showing positive momentum during the fourth quarter of 2010, the Architecture Billings Index (ABI) slipped almost four points in January. The January ABI score was 50.0, which is down from a reading of 53.9 the previous month, but still reflects stable demand for design services. Any score above 50 indicates an increase in billings.
| Feb 22, 2011
LEED Volume Program celebrates its 500th certified Pilot Project
More than 500 building projects have certified through the LEED Volume Program since the pilot launched in 2006, according to the U.S. Green Building Council. The LEED Volume Program streamlines the certification process for high-volume property owners and managers, from commercial real estate firms, national retailers and hospitality providers, to local, state and federal governments.
| Feb 22, 2011
HDR Architecture names four healthcare directors
Four senior professionals in HDR Architecture’s healthcare program have been named Healthcare directors.
