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
Architects | Nov 9, 2021
Download BD+C’s 2021 Design Innovation Report
AEC and development firms share where new ideas come from, and what makes them click.
Architects | Nov 9, 2021
Download BD+C’s 10 Predictions for the Construction Industry in 2022
Our prognostications focus on how AEC firms will streamline and modernize their projects and operations.
Architects | Nov 9, 2021
Pelli Clarke Pelli Architects announces renaming
Founded by Cesar Pelli with partners Fred Clarke and Diana Balmori in 1977, the firm began its legacy as Cesar Pelli & Associates at its first office in New Haven, Connecticut.
Movers+Shapers | Nov 7, 2021
Passage of $1.2 trillion infrastructure bill expected to spur stronger construction activity
AEC firms see federal investment as historic
Architects | Nov 2, 2021
What rugby can teach us about designing the workspace of the future
Two veteran workplace designers offer a sports-based analogy for designing agile spaces to meet the needs of an evolving workforce.
Adaptive Reuse | Nov 1, 2021
CallisonRTKL explores converting decommissioned cruise ships for housing
The rapid increase in cruise ship decommissioning during the last 18 months has created a unique opportunity to innovate and adapt these large ships.
Sustainability | Oct 28, 2021
Reducing embodied carbon in construction, with sustainability leader Sarah King
Sustainability leader Sarah King explains how developers and contractors can use the new EC3 software tool to reduce embodied carbon in their buildings.
Cladding and Facade Systems | Oct 26, 2021
14 projects recognized by DOE for high-performance building envelope design
The inaugural class of DOE’s Better Buildings Building Envelope Campaign includes a medical office building that uses hybrid vacuum-insulated glass and a net-zero concrete-and-timber community center.
AEC Tech | Oct 25, 2021
Token Future: Will NFTs revolutionize the design industry?
How could non-fungible tokens (NFTs) change the way we value design? Woods Bagot architect Jet Geaghan weighs risk vs. reward in six compelling outcomes.
Giants 400 | Oct 22, 2021
2021 Retail Giants: Top architecture, engineering, and construction firms in the U.S. retail building sector
Gensler, CallisonRTKL, Kimley-Horn, and Whiting-Turner top BD+C's rankings of the nation's largest retail sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.
