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Codependent Towers in the Heart of Beijing

Beijing Central Business District Block Z8
Beijing, China

As part of a competition, HOK’s team designed these two slender towers – one a 60-story office, the other a hotel – on the main east-west road leading to the Forbidden City.

Reimagining the typical tower arrangement of stacking a hotel above office space, the design places the elements as side-by-side structures, connected by an atrium.

A series of vertically organized, small-scale neighborhood courtyards links the buildings. Conceived as vertical “hutongs,” the spaces draw inspiration from the narrow alleys that have contributed to Beijing’s historic fabric.

Placed on the site to take advantage of natural daylighting and views, the towers provide extremely flexible floor plates. Structurally, the two towers are codependent, achieving their slenderness through the use of side-loaded cores that support large, open floor plates.

The structural design is a hybrid of steel and concrete construction, with the primary side-loaded cores composed of concrete, steel-braced frames around the atria. The 190-meter-tall hotel has flat concrete slab floor plates, while the 290-meter office tower has composite steel floor plates.

SIZE

1.8 million sq. ft. / 167,225 sq. m.

SERVICES

Architecture