NEW POLY PLAZA
Beijing New Poly Plaza, owned by China Poly Group Corporation(a business group in China whose core businesses are international trading and real estate), was built by Poly Real Estate(top five property developers ) in Beijing .Located in East 2nd Ring of Beijing urban, Beijing New Poly Plaza is built over a subway. Covering an area of 1,880,000 m2 including construction area of 10,330,000 m2, the project is designed according to top international office building standards and employed international advanced building equipment management systems.
The total construction area is about 110,000 m2, 23 floors on the ground and 4 floors underground. This significant building, stands at the southwest corner of Dongsishitiao Bridge, with the original Poly Plaza standing at a distance. These two buildings are most striking along East 2nd Ring road.
Project details
New Poly Plaza was designed by the Chicago based architectural and engineering firm SOM New Poly Plaza has no column. Its hall is spacious and bright as it is over 1000 sq m. Each floor is 4m high;and contains 4-pipe variable volume air-conditioners; and air cleaning devices—These details were meant to showcase the "human-oriented" principle, making the project meet multi-international standards, such as safe, efficient, comfortable, convenient, energy saving, environment protective and healthy. The New Poly Plaza was designed by an American architectural and engineering firm, SOM Company, based in Chicago.
Resembling a folded Chinese lantern, the New Poly Plaza boasts the world’s largest flexible cable glass curtain wall and Beijing’s highest skyscraping atrium. The building contains a total floor area of 10,600 square meters and is designed to integrate the building with its surroundings by blurring indoor and outdoor spaces. At 90 meters high and 68 meters wide, its glass curtain wall is universally regarded as a creative and industrial achievement.
Beijing New Poly Plaza, owned by China Poly Group Corporation(a business group in China whose core businesses are international trading and real estate), was built by Poly Real Estate(top five property developers ) in Beijing .Located in East 2nd Ring of Beijing urban, Beijing New Poly Plaza is built over a subway. Covering an area of 1,880,000 m2 including construction area of 10,330,000 m2, the project is designed according to top international office building standards and employed international advanced building equipment management systems.
The total construction area is about 110,000 m2, 23 floors on the ground and 4 floors underground. This significant building, stands at the southwest corner of Dongsishitiao Bridge, with the original Poly Plaza standing at a distance. These two buildings are most striking along East 2nd Ring road.
Project details
New Poly Plaza was designed by the Chicago based architectural and engineering firm SOM New Poly Plaza has no column. Its hall is spacious and bright as it is over 1000 sq m. Each floor is 4m high;and contains 4-pipe variable volume air-conditioners; and air cleaning devices—These details were meant to showcase the "human-oriented" principle, making the project meet multi-international standards, such as safe, efficient, comfortable, convenient, energy saving, environment protective and healthy.
The New Poly Plaza was designed by an American architectural and engineering firm, SOM Company, based in Chicago. The unique design solution incorporates 23 stories of office space built around a 90-meter-tall atrium enclosed by cable-net-supported glass wall. The integration of architecture and engineering is expressed most strongly in this dramatic cable-net wall ,which,is roughly four times the size of the cable-net wall at New York’s Time Warner Center(a mixed use skyscraper consisting of two 750 ft (229 m) towers bridged by a multi-story atrium containing upscale retail shops).It is one of the easily noticeable landmarks in the Chinese capital. With each floor rising to 4m and served by a 4-pipe variable air volume air-conditioner, the building meets multiple internationals standards relating to safety, efficiency, comfort, convenience and environment.
The design moderates Beijing’s often-extreme climate in two ways. The northeast-facing atrium encloses and protects the offices on the interior of the “L," while admitting ample natural light. On the exterior, the fin-wall, brise-soleil shades the floor-to-ceiling windows, tempering the direct south and west sun without compromising views.
Smaller atriums cut into the bars of the office area providing views through the building thus allowing more natural light in. . Public circulation areas and custom designed lighting occupy the area between the bronze and glass walls, adding to the play of light and shadow. The V-cable is attached to the lantern using a specially designed pulley mechanism that allows the main cable to compensate for movement during a seismic event, to accommodate displacement. Folding the cable-net wall over the V-cable reduces the deflection caused by high winds—and therefore the heft of the supporting cable—while adding a faceted dimension to the enclosure.
The suspended lantern’s delicate and luminous qualities call attention to the Poly’s Museum. The lantern’s pleated glass exterior reflects light, while within, bronze-clad walls enclose the exhibition spaces.
Awards
New Poly Plaza has won titles of comprehensive technology.It won the model project award given by the Ministry of Construction, the Beijing structure great wall cup and steel structure gold prize awarded by China Construction Metal Structure Association The award showed extraordinary pursuit of Poly Group—to produce perfect products and leave legend works.
Structural Sealant Offers Solution
The building’s glass curtain wall which can bend one meter under windy conditions, features a truss-free cable net structure, upon which pliable steel cables are fixed between glass panels. Steel cables form a complete single-layer, dual-way pulling the glass curtain wall. To bear the stress on the cable glass curtain wall, Dow Corning recommended its one-component Dow Corning® 995 Silicone Structural Sealant, which is able to adapt to large joint displacements and offer better displacement capacity than other sealants. In tests, Dow Corning’s structural sealant has proven effective for normal and protective assembling, and has been used around the world.
Travertine Blinds Presents Challenge
For the first time in China, vertical stone sun blinds were used on the west and south sides of the New Poly Plaza. The blinds were made of an imported Roman buff travertine. Energy-effective and environmentally friendly, the stone blinds ensure maximum sunlight in winter, protective shading in summer (which saves on heating and air conditioning costs), and reduces light pollution in its surroundings.
However, a buff travertine is susceptible to contamination. Organic materials contained in many sealants can infiltrate the stone, forming a black belt on the stone’s exterior. This significantly affects the appearance of the stone and creates difficulties in maintaining a building’s outer wall. Currently, there are no effective solutions to removing the plasticising agents inside a stone’s gaps.
Silicone Sealants Improve Maintenance and Appearance
To prevent contamination, the only choice was to use a high-performance sealant free of plasticising agents. Dow Corning® 991 Silicone hi-performance sealant does not contain plasticising agents and features anti-contamination and anti-sagging properties. Application of Dow Corning® 991 on the New Poly Plaza reduced the frequency and maintenance costs of the building facade cleaning compared to lower-quality sealants.
Although transparent sealants are commonly thought to be appropriate for multi-support glass curtain walls, several studies demonstrate that almost all stone gaps turn yellow or darken after 1-2 years of application. Ultraviolet radiation also easily penetrates transparent sealants, deteriorating the base material. Projects incorporating black Dow Corning silicone sealants preserve a building’s original appearance, marking black silicone the material of choice among designers over time.
GE Lamps Help New Poly Plaza Stand Out on Beijing's Nighttime Landscape
It is recognised as one of the most innovative architectural designs in the world. The challenge facing lighting designers was to enhance the magnificence of the building and ensure it would stand out as a distinct addition to the city's night time landscape, while combining traditional Chinese culture and modern technology with energy efficient lighting.
Beijing Hao Er Sal Lighting Engineering Co., Ltd. chose GE Consumer and Industrial to help meet its ambitious lighting objectives. The lighting design firm wanted to highlight a number of interesting architectural features, such as yellow stone walls at the front of the building that form a "triumphal arch," vertical stone layered windows and an open brass curtain wall that represents the more traditional Chinese culture.Luminaires with GE 400-watt and 1000-watt Lucalox(R) high-pressure sodium lamps highlight the "triumphal arch" of the yellow stone walls. The lamps are carefully aimed to minimise light pollution.
One challenge was to enhance the magnificence of the building and ensure it would stand out as a distinct addition to the city’s night time landscape, while combining traditional Chinese culture and modern technology with energy efficient lighting.This lighting challenge was overcame by using waterproof and dustproof luminaries with GE 28 watt T5 Starcoat(R) Ecolux(R) 2700 K lamps, a product of ecomagination. The luminaries with GE fluorescent lamps create a textured look that is energy efficient and visually striking.
The west and south facades, the vertical stone-layered windows and brass curtain wall presented a unique lighting design opportunity. . In the center of the 90-meter-tall atrium is a "floating floor" 7 meters above the ground.
The lighting on the floor creates the look of a massive traditional Chinese red lamp. Beijing has undoubtedly continued its quest to be a world capital of architecture projects with its track record of approving some of the world's most avant-garde architecture projects. With its innovative design and a lighting design that adds to the building's magnificence, the New Poly Plaza is destined to maintain its mark as a landmark building on Beijing's rapidly changing landscape.
PROJECT TEAM
- China Poly Group Corporation
(Beijing, China) - Skidmore, Owings& Merrill LLP
(San Francisco, California) - Yuanda Enterprise Group
(Shenyang, China) - Shenzhen,Jinyue Industry Co.Ltd.
(Shenzhen, China) - Dow Corning Corporation
(Midland, Michigan)
