The plan of the building is set in a assembled manner in order to reduce as much as possible the occupying of the land and leave as much as possible the land to the urban landscape. The main structure is steel and concrete framed; some parts are prestressed concrete of large-span structure. The change of the shape is determined by the limited structural suspended beams. The columns are strictly arranged with single discipline, which optimizes the structural design, reduces the cost and accelerates the construction process.