A 2013 analysis of two-dimensional elevator traffic systems likens the present use of one cabin per elevator shaft to using an entire railway line between two sites with a single train—an avoidable inefficiency.
ThyssenKrupp's latest offering, named MULTI, will allow several cabins in the same shaft to move vertically and horizontally, which the company says is “a new and efficient transport solution for mid- and high-rise buildings.”
The mechanism is made possible by applying the linear motor technology of the magnetic levitation train Transrapid to the elevator industry.
In a manner similar to a metro system operation, the elevator design can incorporate various self-propelled elevator cabins per shaft running in a loop, increasing the shaft transport capacity by up to 50%, making it possible to reduce the elevator footprint in buildings by as much as 50%.
The elevator requires no cables, and uses a multi-level brake system and inductive power transfers between shaft and cabin. This allows the elevator to occupy smaller shafts than conventional elevators, which can increase a building's usable area by up to 25%. The overall increase in efficiency also translates into a lower requirement for escalators and additional elevator shafts, resulting in significant construction cost savings as well as a multiplication of rent revenues from increased usable space.
Although the ideal building height for MULTI installations starts at 300 meters, this system is not constrained by a building's height.
“Building design will no longer be limited by the height or vertical alignment of elevator shafts, opening possibilities to architects and building developers they have never imagined possible,” the company said in a release.
MULTI is based on the concept of ThyssenKrupp TWIN's control system and safety features, but includes new features such as new and lightweight materials for cabins and doors, resulting in a 50% weight reduction as compared to standard elevators, as well as a new linear drive—using one motor for horizontal and vertical movements.
Operating on the basic premise of a circular system, such as a paternoster, MULTI consists of various cabins running in a loop at a targeted speed of 16 m/s, enabling passengers to have near-constant access to an elevator cabin every 15 to 30 seconds, with a transfer stop every 50 meters.
Related Stories
| May 24, 2012
2012 Reconstruction Awards Entry Form
Download a PDF of the Entry Form at the bottom of this page.
| May 15, 2012
One World Trade Center goes to new height of sustainability
One of the biggest challenges in developing this concrete mixture was meeting the Port Authority of New York/New Jersey’s strict requirement for the replacement of cement.
| May 14, 2012
SOM to break ground on supertall structure in China
The 1,740-feet (530-meter) tall tower will house offices, 300 service apartments and a 350-room, 5-star hotel beneath an arched top.
| May 14, 2012
Adrian Smith + Gordon Gill Architecture design Seoul’s Dancing Dragons
Supertall two-tower complex located in Seoul’s Yongsan International Business District.
| May 1, 2012
Time-lapse video: World Trade Center, New York
One World Trade Center, being built at the site of the fallen twin towers, surpassed the Empire State Building on Monday as the tallest building in New York.
| Apr 27, 2012
China Mobile selects Leo A Daly to design three buildings at its new HQ
LEO A DALY, in collaboration with Local Design Institute WDCE, wins competition to design Phase 2, Plot B, of Campus.
| Apr 25, 2012
McCarthy introduces high school students to a career in construction
High school students from the ACE Mentoring Program tour the new CHOC Children’s Patient Tower in Orange, Calif.
| Apr 25, 2012
J.C. Anderson selected for 50,000-sf build out at Chicago’s DePaul University
The build-out will consist of the construction of new offices, meeting rooms, video rooms and a state-of-the-art multi-tiered Trading Room.
| Apr 24, 2012
ULI Real Estate Consensus Forecast, projects improvements for the real estate industry through 2014
Survey is based on opinions from 38 of the nation’s leading real estate economists and analysts and suggests a marked increase in commercial real estate activity, with total transaction volume expected to rise from $250 billion in 2012 to $312 billion in 2014.
| Apr 23, 2012
Innovative engineering behind BIG’s Vancouver Tower
Buro Happold’s structural design supports the top-heavy, complex building in a high seismic zone; engineers are using BIM technology to design a concrete structure with post-tensioned walls.
