Schwebende Spannbetonbrücken für ein unkonventionelles Hochhaustragwerk

Floating Transferbeams for an extraordinary highrise structure - the Four Seasons Hotel in Bahrain

Werner Sobek has been commissioned by SOM New York to develop the structural design of the Four Seasons Tower and Podium. The project is located in the Bahrain Bay Development in Manama in the Kingdom of Bahrain. The main structure is a 48 story cast-in-place hotel tower with height above grade of approx. 201.50 m. The Podium's three story, cast-in-place concrete superstructure lies immediately to the east and west of the Tower.
Structurally, the high-rise may be seen as a vertically cantilevered I-beam with its web deleted at the ends. The cores or piers act as the flanges of the beam structure and the hotel area act as the interrupted web. Under lateral loads, the overall system acts as a pair of vertical cantilevered beams or flanges as seen from the north and south and as an open moment frame as seen from east and west. The twin concrete cores form the two 201.50m legs of the frame and are joined by 2 mechanical levels, the skypod, and the spine wall in the Hotel portion, forming moment connections to restrict side sway within acceptable static and dynamic limits.