Authors
Chris Carroll, Xiaonian Duan, Craig Gibbons, Richard Lawson, Alexis Lee, Andrew Luong, Rory Mcgowan, Chas Pope
Publication date
2006
Journal
Steel Structures
Volume
6
Pages
387-391
Description
CCTV new headquarters building is a 234 m tall building in the form of a three-dimensional continuous cranked loop formed by a 9-storey podium structure joining two 50-storey high leaning towers which are linked at the top via a 13-storey cantilevered “overhang” structure at 36 storeys above the ground. This innovative and iconic shape of the building is exploited to provide the primary structural support system, as well as achieving the architectural vision of high-rise occupancy with occupant interface maintained within short distances in a continual loop. The building’s primary support, in high-seismic intensity Beijing, is achieved by its external skin of leaning columns, horizontal beams and triangulated bracings forming a network of diagrids in an extremely strong closed braced tube structure. This external diagrid structure is also expressed boldly in the building’s façade. It reinforces the transparency between structure and architecture, a central philosophy to the building’s design. The internal structure is supported by vertical columns and steel cores which diminish in size progressing up the building height, in tune with the shape of the leaning towers. The columns emerge and terminate up the height of the building, again influenced by the angled towers. Transfer trusses are located at various levels to collect these column loads into the cores and external structure.
Total citations
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Scholar articles
C Carroll, X Duan, C Gibbons, R Lawson, A Lee… - Steel Structures, 2006