Chinese spec 'world's fastest' elevators for supertall project

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.

Peter W. Rutti, AIA, Associate Principal and Project Director of Westlake Reed Leskosky, has been appointed Director of Design of the Phoenix, Arizona studio of the nationally recognized architects, engineers, and technology designers. The announcement recognizes the design excellence, leadership, and continued growth of the national and international practice of the integrated design firm in the western region.

| Feb 14, 2013

Peter Bardwell named 2013 president of the American College of Healthcare Architects

The Board of Regents of the American College of Healthcare Architects (ACHA) has named Peter L. Bardwell, FAIA, FACHA of Columbus, Ohio as 2013 national President.

| Feb 13, 2013

Department store concept by OMA's Koolhaas, Alsaka draws inspiration from open-air Arab marketplaces

The Exhibition Hall, a retail concept planned in Kuwait City's 360° Mall, will meld cultural and commerce spaces in a series of galleries reminiscent of the long passages of the souq—traditional, open-air marketplaces found in Arab cities.