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
| Sep 16, 2010
Gehry’s Santa Monica Place gets a wave of changes
Omniplan, in association with Jerde Partnership, created an updated design for Santa Monica Place, a shopping mall designed by Frank Gehry in 1980.
| Sep 16, 2010
Green recreation/wellness center targets physical, environmental health
The 151,000-sf recreation and wellness center at California State University’s Sacramento campus, called the WELL (for “wellness, education, leisure, lifestyle”), has a fitness center, café, indoor track, gymnasium, racquetball courts, educational and counseling space, the largest rock climbing wall in the CSU system.
| Sep 13, 2010
Community college police, parking structure targets LEED Platinum
The San Diego Community College District's $1.555 billion construction program continues with groundbreaking for a 6,000-sf police substation and an 828-space, four-story parking structure at San Diego Miramar College.
| Sep 13, 2010
Campus housing fosters community connection
A 600,000-sf complex on the University of Washington's Seattle campus will include four residence halls for 1,650 students and a 100-seat cafe, 8,000-sf grocery store, and conference center with 200-seat auditorium for both student and community use.
| Sep 13, 2010
Second Time Around
A Building Team preserves the historic facade of a Broadway theater en route to creating the first green playhouse on the Great White Way.
| Sep 13, 2010
Palos Community Hospital plans upgrades, expansion
A laboratory, pharmacy, critical care unit, perioperative services, and 192 new patient beds are part of Palos (Ill.) Community Hospital's 617,500-sf expansion and renovation.
| Sep 13, 2010
China's largest single-phase hospital planned for Shanghai
RTKL's Los Angles office is designing the Shanghai Changzheng New Pudong Hospital, which will be the largest new hospital built in China in a single phase.
| Sep 13, 2010
Richmond living/learning complex targets LEED Silver
The 162,000-sf living/learning complex includes a residence hall with 122 units for 459 students with a study center on the ground level and communal and study spaces on each of the residential levels. The project is targeting LEED Silver.
