Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China

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Photo of 10 new skyscrapers planed to be built by the street
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Henn Architekten won an international competition for Haikou Tower, Haikou, China. 10 new skyscrapers should make pretty impressive sight, where the tallest skyscraper is set to rise 450m (1,476ft). Completion is planed for 2014.


"The Haikou Towers are projected to become the heart of the new Central Business District of Haikou, the capital city of Hainan, a tropical island in the South China Sea. The Masterplan comprises an ensemble of 10 Towers ranging from 150 to 450 meters height with an overall building area of 1.5 million square meters. The proposal’s centerpiece is the 450m high middle tower.

Form and structure have been directly influenced by the program requirements and the drive for a highly efficient structural scheme. The occupant’s needs for large and flexible office spaces on the lower floors and an unobstructed view from the hotel rooms on the upper levels have led to a shift of the cross-bracing system at the boundary between the two functions. The shift in systems occurs at the hotel lobby area in the form of a large outrigger truss. This truss is purposefully exposed and integrated into the architecture to articulate a multistory high atrium on the upper floors and to provide a clear distinction between functions and structural systems.

The building height of 450m requires an intelligent, highly performative building envelope. The facade system reacts to differing sunlight conditions depending on the building’s orientation. The proposed facade achieves this with a panel unit system which is divided into two parts – an upper opaque part that blocks sunlight and a lower transparent part. The opaque spandrel panels provide both external shading to reduce cooling loads and energy production by a photovoltaic coating on the south facade.

The transparent glass facade in the lower part maximizes the use of daylight. The division in each facade units allows folding in and out. The folding angles vary according to the different sun-shading requirements, from north to south, from bottom to top. The continuous differentiation of the facade harmoniously blends with the large-scale structure of the tower."
          -Henn Architekten

Photo of new skyscrapers as seen from the street
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of new development as seen from the air above the city
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of interiors inside of one of the skyscrapers showing huge lobby with lots of stairs
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of sky lobby in one of the skyscrapers
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of upper floor balconies as seen from the lobby on the ground floor
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of the tallest skyscraper as seen from the entrance looking up
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of top floors of the tallest skyscraper at night
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of new development as seen from the air at night
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Photo of the tallest skyscraper as seen from the air above the building
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Site plan of new development showing the locations of new skyscrapers
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustration showing facade shapes of new skyscrapers
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustrations showing different heights among the skyscrapers
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustrations showing all the floors in every skyscraper
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustration showing how main skyscraper get its shape
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustrations showing where hotel and offices are located in the building
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustration of tallest skyscraper with its base
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Floor plans of different skyscrapers
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Illustrations showing how glass facade can protect interiors from the sun
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten

Diagrams of two different skyscrapers showing their floors
Skyscrapers: Haikou Tower by Henn Architekten, Haikou, China
© Henn Architekten


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