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
| Oct 25, 2011
HKS Science & Technology practice formed
Specializing in the planning and design of highly technical building types, HKS’s Science & Technology practice offers the broadest range of services available to the academic and biomedical research, biotechnology, pharmaceutical and medical device community, including laboratory programming, planning and design, strategic science planning and laboratory equipment planning.
| Oct 25, 2011
Universal teams up with Earthbound Corp. to provide streamlined commercial framing solutions
The primary market for the Intact Structural Frame is light commercial buildings that are typically designed with concrete masonry walls, steel joists and steel decks.
| Oct 25, 2011
Ritner Steel CEO elected to AISC Board
Freund will begin serving on the AISC board of directors, assisting with the organization's planning and leadership in the steel construction industry.
| Oct 25, 2011
Commitment to green building practices pays off
The study, conducted by the Pacific Northwest National Laboratory, built on a good indication of the potential for increased productivity and performance pilot research completed two years ago, with similarly impressive results.
| Oct 25, 2011
DOE issues report on financing solar photovoltaic systems for K-12 schools
The report examines the two primary types of ownership models used to obtain solar installations. This analysis can help school administrators across the country select the best option for deploying solar technologies in their school districts.
| Oct 25, 2011
MKK participates in BSA Engineering Merit Badge day
MKK principal Craig Watts attended the event as a representative of the MEP (mechanical/electrical/plumbing) engineering industry to give scouts an idea of what’s involved in becoming a mechanical engineer, and an overview of a typical day in the life of an engineer.
| Oct 24, 2011
FMI releases Adjust, Adapt, Act Study
The paper explores several case studies, including Sun Country Builders, Huen, BakerTriangle, Consigli, Skender Construction and Flatiron, and distills the key factors that make these companies unique and successful.
| Oct 24, 2011
BBS Architects & Engineers receives 2011 Sustainable Design Award from AIA Long Island Chapter
AIA LI also recognized BBS with the 2011 ARCHI Award Commendation for the St. Charles Resurrection Cemetery St. Charles Resurrection Cemetery Welcoming and Information Center in Farmingdale, NY.
| Oct 24, 2011
Kolbe adds 3-D models of direct set windows to BIM library?
Beveled Direct Set SketchUp and Revit Models available.
