Shanghai National Exhibition and Convention Center is the world's largest convention complex, providing 400,000 m²
exhibition space and 100,000 m² outdoor exhibition area. The project becomes the city's new source of vitality and an accelerator for Shanghai’s role as an international trade center.
It is required that the 900 m x 900 m site accommodate a huge complex, and the height of the architecture is no more than 43 m to meet the constraints in the airport's restricted areas. For that matter, it’s unable to take a typical decentralized layout as many exhibition buildings do. We adopt the four‐leaf clover shape to solve the problem. Four exhibition units are arranged in that shape, and 16 different exhibition halls are embedded beneath each blade. Thus, the architectural form and the function it needs to fulfill are united. The colonnade plays a role as the structure for the overhangs of the large roof and wind load. The colonnade also forms a rhythmic effect on the facades to stand for a four-leaf clover stem.Moreover, the freight corridor to the second floor is enclosed within the colonnade to maintain the building’s integrity. As for the cityscape, this four‐leaf clover structure adds a beautiful component. It not only has beautiful connotations most of the world may know but also goes in tandem with the Shanghai culture that advocates “inclusiveness like the ocean that admits hundreds of rivers.”
Faced with the challenges in dealing with the huge flow of people and the connection with subway and road transportation, we use a loop system similar to the urban road system
and the “米” shape transportation design. It can afford an average daily flow of 400,000 people and 17 kinds of exhibition conditions, with the shortest viewing route and the world's most efficient emergency evacuation system. The vertical loop around each individual leaf of the structure helps to make multi‐layers into one layer, making the upper hall have the same use efficiency as the lower floor. The advantages of the upper hall, with its large‐span and column‐free space, are also taken.
As a convention complex accommodating several exhibition halls of over 28 000 m² area and 30 m height, the project showcases innovative design and research in large‐span structures, evacuation design, pedestrian and vehicular access systems, illumination, and lighting techniques.