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
| Aug 22, 2014
Spireworks app lets users control a piece of the New York skyline
Mark Domino, the son-in-law of developer Douglas Durst, has developed an app, called Spireworks, that allows anyone with a smartphone to change the color of a building's lights.
| Aug 21, 2014
Ranked: Top science and technology sector AEC firms [2014 Giants 300 Report]
HDR, Affiliated Engineers, and Skanska top BD+C's rankings of the nation's largest S+T sector design and construction firms.
| Aug 21, 2014
Ranked: Top convention center AEC firms [2014 Giants 300 Report]
Gensler, AECOM, and Hunt Construction top BD+C's rankings of the nation's largest convention center design and construction firms.
| Aug 21, 2014
Apartment construction hits 25-year high
The boost to apartment construction suggests that job gains are encouraging the creation of households.
| Aug 21, 2014
Strategies for providing great customer service
Customers are inherently inefficient and inconvenient to do business with, writes Customer Service Consultant Micah Solomon, in a recent Forbes post. That’s why he believes great customer service depends on understanding this. SPONSORED CONTENT
Sponsored | | Aug 21, 2014
Defining the measure of success when implementing new technologies
Sasha Reed and Chad Dorgan, McCarthy Building Cos.’s Vice President of Quality and Sustainability, discuss the keys to managing innovation within a large construction firm. SPONSORED CONTENT
| Aug 21, 2014
RTKL's parent company Arcadis acquires Callison
The acquisition of Callison, known predominantly for its leadership in retail and mixed-use design, builds on Arcadis’ strong global design and architecture position, currently provided by RTKL.
| Aug 21, 2014
Must See: Detroit's Beaux-Arts parking garage
An opulent Renaissance Revival building in downtown Detroit is being used as a parking garage.
| Aug 20, 2014
WELL Building: The next step in green sports construction
The WELL Building Standard, a new protocol that focuses on human wellness within the built environment, is a particularly good fit for sports facilities, write Skanska's Tom Tingle and Beth Heider.
| Aug 20, 2014
Seattle's King Street Station thoughtfully restored [2014 Reconstruction Awards]
After years of neglect and botched renovations, King Street Station sparkles once again.
