Quality Wins Project of the Year

technical details concerning the steel tower’s construction and eleva- tor installation were finished in September 2011. The tower was man- ufactured and shipped in four pieces and installed onsite. Pulley beams in the head of the shaft and all brackets for the eleva- tor were installed on the ground prior to the leveling of the structure. The installation was completed after the shaft was closed. The shaft is made of six vertical tubes connected with a continuous helix, forming a corkscrew. To make the steel construction static enough, there is one straight diagonal between each connection of the verticals and helix. Outside the steel construction, there is glass, which follows the geometric shape of the helix and the six verticals. The Zetasyn SM700 machine was placed in the pit behind the coun- terweight to maximize use of the area in the shaft. The safety screen in front of the machine is in glass to show the function of the elevator. The counterweight is painted green to highlight the physics of a trac- tion lift, making it visible from a distance as it travels. The 2:1 acting fork lift construction with guide rails on one side of the car gives a maximum car size in the circular shaft. The guiderail installation was designed to take the acting forces, as the tower will sway slightly during strong winds. There is only one landing door. The elevator goes full speed up to 26 m, then operates in crawling speed for the last 20 m, allowing the passengers to enjoy the view of the city on the way to the top. After a short pause on the top, the elevator trav- els downward at full speed. The car is fully panoramic, and the ceiling is also made of glass, providing a spectacular view inside the helix formation during travel. The lighting in the car is located in the opaque glass floor. The straight glass wall in the back of the car features a switchable smart glass, which is opaque until the height of 25 m to cover the view until the elevator is above the nearby apartment building. As the elevator comes above the roof of the apartment building, the glass switches to transparent, revealing the view to the west. There is a frameless glass hatch in the ceiling to access the roof of

Looking up from pit at car and green counterweight

Specifications Capacity: 630 kg/eight persons Speed: 1.6 mps Stops: Two Services: One Travel: 46.5 m Guide rails: T125 X 82 X 16 Ropes: 6 X 8 mm Machine: Ziehl Abegg SM700

the car. The hatch is also useful in case of an emergency evacua- tion. Since there is only one landing door, it is possible to evacuate with skylift or ladder platforms. Due to the straight diagonals, which stabilize the tower, there was no space for two-panel, center-opening doors. There- fore, Sematic specially designed a new single-panel, side-open- ing glass door with the operator below the sill for this project. An operator is present at all times to collect tickets and start the elevator. The operating of the elevator works with a re- mote control. The operator is trained to start the evacuation procedure in case of an emer- gency stop. c

Motor: 12 kW, 29 A, 400 V Doors: 900 X 2,300 mm Cabin: Radius: 940 mm, height: 2,300 mm Credits

Installer: Myhre Heis & Elektro AS Supplier: LM Liftmaterial GmbH Manufacturer (car and door): Sematic S.R.L. Manufacturer (controller, car and landing panels): NewLift Steuerungsbau GmbH

Entrance and machine view

Reprinted from ELEVATOR WORLD Januar y 2013 | ELEVATOR WORLD | 53