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 29, 2014
AIA honors 18 with 2014 Young Architects Award
Three recent BD+C "40 Under 40" winners are among the outstanding young architects recognized by the AIA.
| Jan 28, 2014
White Paper: How metal buildings deliver long-term value to schools
A new white paper from Star Building Systems outlines the benefits of metal buildings for public and private school building projects.
| Jan 28, 2014
First Look: BIG's Honeycomb building for Bahamas resort [slideshow]
BIG + HKS + MDA have unveiled the design for the new Honeycomb building and adjacent plaza in The Bahamas – a 175,000-sf residential facility with a private pool on each balcony.
| Jan 28, 2014
2014 predictions for skyscraper construction: More twisting towers, mega-tall projects, and 'superslim' designs
Experts from the Council on Tall Buildings and Urban Habitat release their 2014 construction forecast for the worldwide high-rise industry.
| Jan 28, 2014
16 awe-inspiring interior designs from around the world [slideshow]
The International Interior Design Association released the winners of its 4th Annual Global Excellence Awards. Here's a recap of the winning projects.
| Jan 28, 2014
Big Ten Conference opens swanky HQ and museum [slideshow]
The new mixed-use headquarters includes a museum, broadcast studios, conference facilities, office spaces, and, oh yeah, a Brazilian steakhouse.
| Jan 27, 2014
A climber's dream: Rock climbing hall planned near Iran's highest peak
Forget the rock climbing wall. A developer in Iran is building a rock climbing hall. That's right, an entire building dedicated to the sport, with more than 48,000 sf of program space.
| Jan 24, 2014
First look: Foster + Partners' new home for Yale School of Management [slideshow]
Edward P. Evans Hall, the new home of the Yale School of Management, has opened for business. The 242,000-sf facility was designed by Foster + Partners, with Gruzen Samton as architect of record.
| Jan 24, 2014
Reed Expansion Index predicts widespread economic improvement for the year
Reed's December Expansion Index stood at 1.48, indicating overall construction in the United States is expected to grow over the next 12 months.
| Jan 24, 2014
Urban Land Institute, Enterprise outline issues in rental housing shortage: Report
Bending the Cost Curve: Solutions to Expand the Supply of Affordable Rentals outlines factors that impede the development of affordable rental housing – causing the supply in many markets to fall far short of the demand.
