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Figures

Height: Architectural 152.5 m / 500 ft
Height: Occupied 131.1 m / 430 ft
Height: To Tip 152.5 m / 500 ft
Floors Above Ground 40
# of Elevators 2
# of Apartments 91

Facts

Official Name York Place
Other Names 20 Johnston Road
Structure Type Building
Status Completed
Country China
City Hong Kong
Street Address & Map 20 Johnston Road
Building Function residential
Structural Material concrete
Completion 2009

Companies Involved

Architect
Design LWK & Partners
Structural Engineer
Design Maunsell AECOM Group
MEP Engineer
Design Thomas Anderson & Partners Limited
Main Contractor Wing Sum Construction & Engineering

About York Place

Redeveloped from an original 17-story building built on the site in the 1980’s, York Place is a typical reinforced concrete structure. However, an exceptionally small site area of 27 meters by 27 meters (88x88ft), restrained the building breadth to 13 meters (43ft) which resulted in an extremely slender structure. With a slenderness ratio of 1:12, the tower would be left highly vulnerable to wind loads.

To resolve these design constraints, multiple tuned liquid dampers were devised to improve the damping performance of the building, to enhance its serviceability performance in wind event. To minimize undesirable structural impacts on surrounding buildings and nuisance to normal traffic operations below, the existing substructures of the original building were fully utilized in the design of the foundation work. The combination of a well-detailed structural layout plus the application of tuned liquid dampers cleverly fuses conventional construction technology, state of the art of engineering science and user requirements to successfully shape a stiff and robust structure which behaves adequately with static and dynamic performance in extreme wind events.

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