שיא עולמי חדש: מגדל שנגחאי
30/10/13 09:10

It is said that the under-construction Shanghai Tower is progressing by roughly a floor every five days. On April 10, the concrete pouring of the core structure in the tower was completed on the 108th floor at the height of 501.3 m, overtaking its two neighboring supertall skyscapers, Shanghai World Financial Center (492 m tall) and Jin Mao Tower (420 m tall).


Forming a triad in the skyline of Shanghai with the above two supertalls in Lujiazui, Pudong, Shanghai Tower, the tallest of the three, will have a structure height of 580 m and total height of 632 m, with its 127 stories to provide enough office space for more than 30,000 people after its construction is completed in 2014 or 2015.

With a total investment of around RMB15 billion (US$2.41 billion), Shanghai Tower is built on a land area of 30,368 m2 with a total floor area of 574,000 m2 on 121 above-ground floors and five underground floors It will be a multipurpose complex, housing offices, convention and exhibition facilities, hotel rooms, restaurants, shopping areas, and entertainment and urban sightseeing facilities.

Shanghai Tower is a green building by design. Not only is it to be covered with lawns and trees (33% of the land around it), it is also to have a number of vertical gardens between its glass skins. Gensler of Los Angeles provided the architectural design, planning and consulting from its offices in Shanghai. It worked together with the Architectural Design and Research Institute of Tongji University to create Shanghai Tower’s main structure, which looks transparent with its vertically arranged urban neighborhood visible from the ground.

On every floor inside the building, tenants and visitors are able to enjoy the varied views of the nearby skyscrapers and beyond the Huangpu River. The building’s helical-lined opening goes from ground to roof, presenting a contrast with the architectural styles of the existing nearby Shanghai World Financial Center and Jin Mao Tower.

Shanghai Tower has integrated both modern architectural concepts such as the double-skin configuration, and new building technologies, featuring an asymmetrical shape and using newly developed, eco-friendly building materials, which contribute to lowered construction costs. Technologies implemented in it include the installation of built-in wind turbine generators and a rainwater collecting system by means of the helical protection walls on the top of the tower. It is expected to receive Leadership in Energy and Environmental Design certification once complete. 

Mitsubishi Electric and Shanghai Mitsubishi will provide 106 elevators for Shanghai Tower, with three of the elevators to be among the fastest in the world at the speed of 1,080 mpm (18 mps). However, due to pressure issues that may affect passengers’ eardrums during the descending ride at such a speed, it remains to be seen whether the lifts will descend at full speed. Likely, this speed will be limited to 600 mpm. Some of the fastest double-decker elevators in the world (at 600 mpm [10 mps]) are also to be installed.

It is said the design of the 18-mps lifts applied such newly developed technologies as super-streamlined car exterior fairing, flexible guide rollers to improve riding comfort and a car-interior air-pressure regulating system, which adapts the air pressure inside the car for passengers’ eardrum comfort by means of automatic sensors and a control unit.

They are scheduled to shuttle between basement two and floor 119 (a rise of more than 500 m), each with a load capacity of 21 people. When going up, they accelerate gradually,  approaching full speed in 25 s., then travel at full velocity for 10 s. or longer, before beginning to slow down for landing at the destination floor 

There were challenges in the design of the entire elevator system, especially in the car structure, drive capacity and safety components, requiring several new technologies