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
| May 3, 2013
Another edible city? Artist creates model city with chewing gum
French artist Jeremy Laffon pieced together a model city with thousands of sticks of mint-green chewing gum.
| May 2, 2013
First look: UC-Davis art museum by SO-IL and Bohlin Cywinski Jackson
The University of California, Davis has selected emerging New York-based practice SO-IL to design a new campus’ art museum, which is envisioned to be a “regional center of experimentation, participation and learning.”
| May 2, 2013
A snapshot of the world's amazing construction feats (in one flashy infographic)
From the Great Pyramids of Giza to the U.S. Interstate Highway System, this infographic outlines interesting facts about some of the world's most notable construction projects.
| May 2, 2013
Holl-designed Campbell Sports Center completed at Columbia
Steven Holl Architects celebrates the completion of the Campbell Sports Center, Columbia University’s new training and teaching facility.
| May 2, 2013
BIM group proposes uniform standards for how complete plans need to be
A nationwide group of Building Information Modeling users, known as the BIMForum, is seeking industry input on a proposed set of standards establishing how complete Building Information Models (BIMs) need to be for different stages of the design and construction process.
| May 2, 2013
New web community aims to revitalize abandoned buildings
Italian innovators Andrea Sesta and Daniela Galvani hope to create a worldwide database of abandoned facilities, ripe for redevelopment, with their [im]possible living internet community.
| May 1, 2013
A LEGO lover's dream: Guide to building the world's iconic structures with LEGO
A new book from LEGO master builder Warren Elsmore offers instructions for creating scale models of buildings and landmarks with LEGO.
| May 1, 2013
New AISC competition aims to shape the future of steel
Do you have the next great idea for a groundbreaking technology, model shop or building that could potentially revolutionize the future of the steel design and construction industry? Enter AISC's first-ever Future of Steel competition.
