Shanghai World Financial Center Co., Ltd, invested by Mori Building Co., Ltd., is ready to install anti-wind tuned mass dampers on the ninetieth floor of the Shanghai World Financial Center. Currently under construction in the Lujiazui Financial and Trade Zone of Pudong New District, Shanghai, the super high-rise construction project will have 101 floors above ground.
The Shanghai World Financial Center is a multi-purpose super high-rise complex housing office, hotel, observatory, conference and commercial spaces. The construction has reached 93 floors above ground at a height of 416 meters. The building's roof is expected to seal this September, with a total height of 492 meter including 101 floors above ground. The whole project will be completed in the spring of 2008.
To improve occupants' comfort in strong wind conditions - particularly in hotel and office spaces - two mass dampers were installed on the ninetieth above ground floor. The mass dampers use sensors to detect any swaying of the building and connects with a computer controlled, 150-ton counterweight suspended within the equipment by wire rope. In this way, the swaying problem of building is kept in control. (See PDF file for detailed information on this equipment).
While mass damper units are a feature of super high-rise buildings around the world, in mainland China, the Shanghai World Financial Center stands at the forefront with the introduction of a tuned mass damper system for commercial buildings.