Leeza SOHO Tower by Zaha Hadid Architects housing world's heighest Atrium | ITSLIQUID

Leeza SOHO Tower by Zaha Hadid Architects housing world’s heighest Atrium

Architecture | July 18, 2017 |

Leeza SOHO Tower by Zaha Hadid Architects housing world's heighest AtriumImage courtesy of Zaha Hadid Architects

Leeza SOHO Tower by Zaha Hadid Architects housing world’s heighest Atrium

 

Construction of Leeza Soho, a 46-storey (207m) mixed-use tower with the world’s tallest atrium, has reached level 20.

Anchoring the financial district, the 172,800m² Leeza Soho design has evolved from its specific site conditions. Straddling the new subway tunnel that diagonally divides the site, the tower rises as a single volume divided into two halves on either side of the tunnel. A central atrium – the world’s tallest – extends 190m through full height of the building, connecting the two halves together.

 

Leeza SOHO Tower by Zaha Hadid Architects housing world's heighest AtriumImage courtesy of Zaha Hadid Architects

 

As the tower rises, the diagonal axis through the site defined by the subway tunnel is re-aligned by ‘twisting’ the atrium through 45 degrees to orientate the atrium’s higher floors with the east-west axis of Lize Road, one of west Beijing’s primary avenues.

Connecting with the interchange station below, this 190m atrium will be a new public space for the city. An outdoor, public piazza surrounds the tower, echoing its circular form at the centre of the new financial district and welcoming visitors inside. The atrium’s ‘twist’ allows natural light and views of the city from the centre of all floors of Leeza Soho. Sky bridges on structural rings at each refuge/MEP level and a double-insulated glass façade unite the two halves of the tower together within a single cohesive envelope.

 

Leeza SOHO Tower by Zaha Hadid Architects housing world's heighest AtriumImage courtesy of Zaha Hadid Architects

 

The double-insulated, unitised glass curtain-wall system steps the glazing units on each floor at an angle, allowing ventilating registers to draw outside air through an operable cavity when required; creating extremely efficient environmental control for each floor. The tower provides self-shading for the atrium’s public space below while double-insulated low-e glazing (U=2.0W/m²K; SC=0.4) and envelope insulation (U=0.55 W/m²K) maintain a comfortable indoor environment in Beijing’s extreme weather conditions.

Targeting LEED Gold certification, an advanced 3D BIM energy management system will monitor real-time environmental control and energy efficiency within Leeza Soho, integrating heat-recovery from exhaust air, high-efficiency pumps and fans, chillers and boilers, lighting and controls, in addition to water-collection, low-flow rate fixtures, grey water flushing and landscape irrigation.

 

Leeza SOHO Tower by Zaha Hadid Architects housing world's heighest AtriumImage courtesy of Zaha Hadid Architects

 

Construction of Leeza Soho will reach its full 207m height in September this year, with the tower’s completion planned for late 2018.

 

more. www.zaha-hadid.com

 

 

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