New Beijing Poly Plaza
| The New Beijing Poly Plaza | |
|---|---|
| General information | |
| Type | office/mixed |
| Location | Chaoyangmen North Street, Dongcheng District, Beijing, China |
| Coordinates | 39°55′54″N 116°25′34″E / 39.9316°N 116.426°ECoordinates: 39°55′54″N 116°25′34″E / 39.9316°N 116.426°E |
| Construction started | 2003 |
| Completed | 2007 |
| Cost | 180 million dollars (US) |
| Owner | China Poly Group Corporation |
| Height | 110 m |
| Technical details | |
| Floor count | 24 |
| Floor area | 103.308 m2 |
| Design and construction | |
| Architect |
Skidmore, Owings and Merrill Mark Sarkisian, P.E. S.E., Partner and Aaron Mazeika, P.E., Associate |
| Structural engineer |
Skidmore, Owings and Merrill for base building: Beijing Special Engineering Design and Research Institute wind engineer: Shifu Gu, Mechanics & Engineering Science Department, Peking University |
| Main contractor | (cable nets) Yuanda China, Shenyang, China Advanced Structures Inc., Culver City, California |
The New Beijing Poly Plaza was completed in 2007. It was designed for the China Poly Group Corporation to serve as their new corporate headquarters, as well as a mix of commercial and cultural uses. It is located in Beijing, China northeast of the Forbidden City.
The building serves as the new headquarters for the China Poly Group Corporation. For their new headquarters, they wanted a design that would reflect their multiple corporate interests in a unified structure. The New Beijing Poly Plaza building houses office space, retail, restaurants, and the Poly Museum.
The New Beijing Poly Plaza is on the 2nd Ring Road, at a major highway intersection. Its large atrium looks out onto the intersection and across the road to the existing China Poly Headquarters.
Office space, retail, restaurants, subway entrance
The atrium it forms is 21 stories high.
The building is framed in steel and concrete composite.
The structure has three main components: an L-shaped office building, a glass-enclosed atrium, and a hanging structure referred to as the ‘lantern.’
The overall footprint on the 65,000 m2 site is of a right triangle. Each leg of the L-shaped building measures 76.5 m long by 22.5 m wide. The hypotenuse of the triangle is formed by a glass cable-net wall faces northeast, and reduces the overall exterior surface area of the building, helping to moderate the interior climate. Additionally, the south and west walls of the building deflect direct summer sun with a travertine fin-wall and brise soleil shades that don’t obstruct views. The entire travertine façade is illuminated with fluorescent lights, emphasizing even at night the play of light and shadow that is integral in the building’s design. The building interior receives even more late as its surface is perforated with smaller atria, inset into the office bars and allowing for views through the building.
The glass cable-net wall construction is notable for several reasons. It is the world’s largest, measuring 90 meters high by 60 meters wide, four times the size of the cable-net wall at the Time Warner Center in New York. The wall is counterweighted with an 8-story ‘lantern’ structure hanging from four parallel strand cables. The largest of these cables is 275 mm diameter, consisting of 199 parallel strands 15.2 mm diameter. Each strand is made up of seven wires twisted around a central wire. The glass wall is also rigged to these v-shaped cables, reducing the effective distance the wall cables must span. This unique design allows for such a large cable-net wall, and for the lantern. The lantern structure, essentially a building hanging from another building, has no support columns at the ground. It is attached to the cables with v-shaped rocker mechanisms that are designed to maintain tension in a seismic event, keeping lantern fixed in place.
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Wikipedia