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Architects: Zaha Hadid Architects
Area : 172800 m²
Year : 2019
Photographs :Hufton+Crow
Manufacturers : B&B Italia, Hitachi Air Conditioning, Beijing Huaxin Ocean, Boon Edam, Elmes, Gretsch-Unitas, HAY, Hong Fa, Jiangsu Huatong, Kin Long, Kohler, Nippon Paint, Noble, Samsung, Tianjin Yaopi, eGRow
Located on Lize Road in southwest Beijing, Leeza SOHO tower anchors the new Fengtai business district – a growing financial and transport hub between the city centre and the recently opened Beijing Daxing International Airport to the south. The new business district is integral to Beijing’s multi-modal urban plan to accommodate growth without impacting existing infrastructure networks in the centre of the city.
This 45-storey 172,800m² tower responds to demand from small and medium-sized businesses in Beijing for flexible and efficient Grade A office space. Adjacent to the business district’s rail station at the intersection of five new lines currently under construction on Beijing’s Subway network, Leeza SOHO’s site is diagonally dissected by an underground subway service tunnel.
Straddling this tunnel, the tower’s design divides its volume into two halves enclosed by a single facade shell. The emerging space between these two halves extends the full height of the tower, creating the world’s tallest atrium at 194.15m which rotates through the building as the tower rises to realign the upper floors with Lize road to the north. This rotation of the atrium intertwines Leeza SOHO’s two halves in a dynamic ‘pas de deux’ with connecting sky bridges on levels 13, 24, 35 and 45; its glazed facade giving panoramic views across the city.
Leeza SOHO’s atrium acts as a public square for the new business district, linking all spaces within the tower and providing varying views due to its twisting, sculptural form; creating a fantastic new civic space for Beijing that is directly connected to the city’s transport network. The atrium brings natural light deep within the building, acting as a thermal chimney with an integrated ventilation system that maintains positive pressure at low level to limit air ingress and provides an effective clean air filtration process within the tower’s internal environment.
Leeza SOHO’s double-insulated, unitised glass curtain wall system steps the glazing units on each floor at an angle, providing narrow ventilating registers to draw outside air through operable cavities where required; creating extremely efficient environmental control for each floor. The two halves of the tower shade the atrium’s public spaces, while the double-insulated low-e glazing maintains a comfortable indoor environment in Beijing’s extreme weather conditions. With a u-value of 2.0 W/m²K, the glazing has a shading coefficient of 0.4. The tower’s overall external envelope u-value is 0.55 W/m²K.
At the forefront of 3D Building Information Modelling (BIM) in design, construction management and building operations, Zaha Hadid Architects and SOHO China have implemented proven technologies to reduce the energy consumption and emissions at each of their four collaborations, totalling 15 million square feet (1.4 million sq. m) of mixed-use urban space in Beijing and Shanghai.
Designed to achieve LEED Gold certification by the US Green Building Council, Leeza SOHO’s advanced 3D BIM energy management system monitors real-time environmental control and energy efficiency. These systems also include heat recovery from exhaust air and high-efficiency pumps, fans, chillers boilers, lighting and controls. The tower incorporates water-collection, low-flow rate fixtures and greywater flushing as well as an insulating green roof with photovoltaic array to harvest solar energy.
2,680 bicycle parking spaces, with lockers, shower facilities and dedicated charging spaces for electric and hybrid cars are located below ground; while low volatile organic compound materials are installed throughout Leeza SOHO to minimise interior pollutants and high efficiency filters remove particulates via the air-handling system.
Leeza SOHO (Chinese: 丽泽SOHO; pinyin: Lìzé SOHO), also known as Li Ze Tower, is a Skyscraper located in the Lize Financial Business District in Beijing, China. SOHO China acquired land use rights in 2013 for ¥1.922 billion RMB (US$288 million). The construction of the building began in 2015. It was opened on November 19, 2019,making it the third of three buildings designed by Zaha Hadid developed by SOHO China, along with Galaxy SOHO and Wangjing SOHO.
Atrium
The Leeza SOHO features a huge 194 metres (636 ft) tall twisting atrium at its centre, which is the tallest in the world, a title previously held by the Burj Al Arab hotel in Dubai. The atrium twists 45° over the length of the building to allow natural light to all floors. Structural rings at each level, four sky bridges, and a double-insulated glass facade unite the two halves of the tower together.
Subway Connection
Leeza SOHO is located at the intersection of Lines 14 and 16 of the Beijing Subway network. Lize Shangwuqu station is served by Line 14, and will be served by Line 16 and Daxing Airport Express in the future.
The 45-storey Leeza Soho skyscraper, designed by the late Zaha Hadid in Beijing, China, contains the world’s tallest atrium twisting through its centre.
Commissioned by Soho China, the developer of Galaxy Soho and Wangjing Soho, the Leeza Soho high-rise contains a mix of shops and offices surrounding the giant atrium.
“The new business district is integral to Beijing’s multi-modal urban plan to accommodate growth without impacting existing infrastructure networks in the centre of the city,” explained the studio, which is now headed by Patrik Schumacher.
“This 45-storey 172,800-square-metre tower responds to demand from small and medium-sized businesses in Beijing for flexible and efficient Grade A office space.”
Now complete, the Leeza Soho has 45 floors above ground, and four floors below it.
It is positioned on a site adjacent to the business district’s rail station, and straddles an underground subway service tunnel.
Its position over this tunnel led Zaha Hadid Architects to divide the building in two halves, which resulted in the formation of a giant atrium at its centre.
This atrium runs the full height of the building, which at 194.15 metres makes it the world’s tallest atrium, overtaking the void in the Burj Al Arab hotel in Dubai.
As it rises, the Leeza Soho’s void twists by 45 degrees to appear as though the two sides of the tower are moving together “in a dynamic pas de deux”. This also aligns the tower’s upper levels with views onto Lize Road – one of west Beijing’s main streets.
The dyamic shape of the atrium creates convex openings either side of the tower, which allow natural light into the interiors and provide views out over the city from each floor.
The lowest level of the atrium has been designed to act as a public square for the business district, and is directly linked to the interchange beside the site.
“Leeza Soho’s atrium acts as a public square for the new business district, linking all spaces within the tower and providing varying views due to its twisting, sculptural form; creating a fantastic new civic space for Beijing that is directly connected to the city’s transport network.”
In a bid to enhance the building’s environmental performance, the tower is fitted with heat recovery from exhaust air and high-efficiency pumps, water-collection facilities, grey water flushing and an insulating green roof with photovoltaic panels.
There are also 2,680 bicycles parking spaces with lockers and shower facilities, alongside charging spaces for electric or hybrid cars to encourage users to travel sustainability.
The Leeza Soho tower is one of four projects that Zaha Hadid Architects has designed for the developer Soho China, including two others in Beijing.
The Galaxy Soho building is made up of four main domed structures, while the Wangjing Soho commercial complex features three pebble-shaped towers located midway between Beijing Capital Airport and the city.
Zaha Hadid Architects was founded in 1980 by the late architect Hadid. Today it is headed by Patrik Schumacher, who recently spoke at our Dezeen Day conference. The studio has also recently completed a giant starfish-shaped airport in Beijing.
Designed by the late founder of Zaha Hadid Architects before her death in 2016, the skyscraper is located in the Fengtai business district.
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.
The double-insulated, unitised glass curtainwall 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 doubleinsulated 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.
Architect:Zaha Hadid Architects
Project Director: Satoshi Ohashi
Project Architect: Philipp Ostermaier
Competition Project Directors: Satoshi Ohashi and Manuela Gatto
Competition Team Lead Designers: Philipp Ostermaier, Dennis Brezina, Claudia Dorner
Competition Team: Yang Jingwen, Igor Pantic, Mu Ren, Konstantinos Mouratidis, Nicolette Chan, Yung-Chieh Huang
Structure: Bollinger + Grohmann (Competition), CABR (SD), BIAD
Facade: KWP (SD), Kighton Façade, Yuanda
MEP: Parsons Brinkerhoff (SD), BIAD
Lighting: Light Design (SD) (DD), Leuchte (CD)
Landscape: ZHA (SD) (DD), Ecoland
Interiors: ZHA (SD) (DD), Huateng
Executive Architect: BIAD
Facade Contractor: Lingyun, Yuanda
source : archdaily _ wikipedia _ dezeen _ arquitecturaviva _ architectmagazine
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