Raffles City Chongqing topped out successfully on 25 February, following the structural completion of its 250m high skybridge which links six of the eight skyscrapers of the development.
Arup is providing structural engineering services for all design stages for this largest ever Raffles City development in the world. In collaboration with Safdie Architects, the complex has an ambitious structure with eight towers gently arcing towards the water, forming the ‘apex’ to the city’s peninsula – like the great masts of a ship with its sail pulling the city forward. The two central 350m towers, accommodating offices, serviced apartments and hotel facilities, boast a slenderness ratio over 9.5. To tackle this structural challenge, we adopted four mega corner columns connected to the central core wall via diagonal outriggers and belt trusses, forming an effective mega frame structural system.