Zifeng Tower Download PDF


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Height: Occupied
316.6 m / 1,039 ft
 
Height: To Tip
450 m / 1,476 ft
Height: Architectural
450 m / 1,476 ft
 
Zifeng Tower Outline
Height: Observatory
271.8 m / 892 ft
Floors Above Ground
66
Floors Below Ground
5
# of Elevators
54
Top Elevator Speed
7 m/s
Tower GFA
137,529 m² / 1,480,350 ft²
# of Hotel Rooms
450
# of Parking Spaces
1,200

Facts

Official Name Zifeng Tower
Other Names Nanjing Greenland Financial Center
Structure Type Building
Status Completed
Country China
City Nanjing
Street Address & Map No. 9 Zhongyang Road, Gulou District
Building Functions hotel / office
Structural Material composite
Proposed 2004
Construction Start 2005
Completion 2010
Official Website Zifeng Tower
Rankings Click arrows to view the next taller/shorter buildings
Global Ranking #9 Tallest in the World
Regional Ranking #6 Tallest in Asia
National Ranking #3 Tallest in China
City Ranking #1 Tallest in Nanjing

Companies Involved

Owner/Developer Greenland Group; Nanjing Guzzi Greenland Financial Center; Nanjing State Owned Assets
Architect
Design Skidmore, Owings & Merrill LLP
Architect of Record ECADI
Structural Engineer
Design Skidmore, Owings & Merrill LLP
Engineer of Record ECADI
MEP Engineer
Design Skidmore, Owings & Merrill LLP
Engineer of Record ECADI
Main Contractor Shanghai Construction Group
Other Consultant
• Fire Rolf Jensen & Associates
• Landscape SWA Group
• Lighting PHA Lighting Design
Material Supplier
• Elevator KONE; Schindler; Sematic S.r.l.
• Sealants Dow Corning Corporation

About Zifeng Tower

Nanjing Greenland Financial Center is a mixed-use complex comprising of several buildings resting on two sites, parcels A1 and A2. Parcel A1 contains a podium connecting two towers. The taller 450m (1,476ft) tower consists of offices and hotels, and the tower contains purely office space. The shape and placement of the buildings are designed to echo the geometry of the existing roads and maximize exterior views of the city. The buildings’ composition maintains the east–west viewing corridors along East Beijing Road and provides a visual link to the nearby historical drum and bell towers.

Landscaping is a significant part of the complex as the buildings are set back from the street with several large landscaped, public open spaces. South of parcel A1, is a sunken garden that will connect to the future subway. There is also a roof garden at the top of the podium in parcel A1 to reduce the heat island effect. In addition to the ground level and podium garden spaces, the design incorporates sky gardens that wind their way up the façade, bringing the green all the way up the tower.

As one of the tallest structures in the world to date and being constructed in a seismic region, enhanced design measures and performance-based evaluations were utilized in order to obtain seismic review approval for the main tower. The critical parts of the lateral system were designed for earthquake forces between two and six times more than typically required by Chinese code. Additionally, a full 3-Dimensional Non-Linear Elasto-Plastic analysis for a 2,500-year earthquake was completed to determine the structural response and serviceability. A multi-stage axial shortening, creep and shrinkage analysis was also performed to evaluate the long-term load sharing between the central core and the perimeter of the Tower through the outrigger truss system.

The tower features a unique façade system, rather than a typical flush-glass curtain wall system; it is composed of offset modular panels that protrude in plan to create a distinctive texture to the building’s elevations. Each curtain wall unit is a triangle in plan and shifts a half module between each two floors. It creates a scaled effect and has a very unique visual appeal in catching the light and reflections of the city. The small edge of the triangle unit is a fixed perforated metal panel with a hidden operable panel behind it for natural ventilation and smoke exhaust. This will help to reduce mechanical ventilation energy usage during some transitional seasons. The long edge of each triangle unit consists of a high performance insulated low-E glass panel, to help to cut down the heat gain through the building façade.

The office tower is served by floor-by-floor, variable volume, supply air handling units with variable speed drive. Four pipe fan coil units are provided for hotel guest rooms. Gas fired steam boilers and chillers, and associated water pumps are located on the first basement level. Gas service is brought into the building for the boilers and for kitchens. The fire protection system for the building consists of a zoned combination automatic sprinkler and standpipe system in accordance with regulatory requirements for a fully sprinklered high-rise building in China.

The office tower is served by two banks of seven elevators, one bank for the low-rise office levels, and one for the high-rise office levels. Two service elevators are designated as fire elevators and serve all floors of the office tower (three separate service elevators will serve all floors of the hotel). The hotel portion of the main tower will be served by three express passenger elevators from the ground floor entrance lobby to the level 36 sky lobby, where five local passenger lifts will take guests up to the highest hotel level on 65.

CTBUH Initiatives

Nanjing Regional Tour Report
19-20 Sep 2014 – Tour Report

Nanjing Regional Tour Report: Redeveloping the "Southern Capital"
21-22 Sep 2012 – Tour Report

CTBUH Releases Tallest Buildings Completed in 2010
Dec 2010 – CTBUH Journal Paper

Videos

Advanced Supertall Building Design in Hot-Summer and Cold-Winter Climates
20 Sep 2012 – Jianqiang Li, ISA Architecture

Supertall Building Difficulties and Control Points
19 Sep 2012 – ZhaoHui Jia, Greenland Group

From Jin Mao to Kingdom: Search for an Asian Supertall Vernacular
18 Sep 2012 – Adrian Smith, Adrian Smith + Gordon Gill Architecture

More Videos

Videos Related to Zifeng Tower

Videos Related to Zifeng Tower

Advanced Supertall Building Design in Hot-Summer and Cold-Winter Climates
20 Sep 2012 – Presentation at CTBUH 2012 9th World Congress, Shanghai; Jianqiang Li, ISA Architecture
Climate adaptive design is a prerequisite for designing sustainable tall buildings. This presentation seeks to investigate currently available advanced design techniques…
Supertall Building Difficulties and Control Points
19 Sep 2012 – Presentation at CTBUH 2012 9th World Congress, Shanghai; ZhaoHui Jia, Greenland Group
This presentation examines one of the world’s tallest buildings, the 450-meter Zifeng Tower, as a case study and integrates the speaker’s significant management…
From Jin Mao to Kingdom: Search for an Asian Supertall Vernacular
18 Sep 2012 – Presentation at CTBUH 2012 9th World Congress, Shanghai; Adrian Smith, Adrian Smith + Gordon Gill Architecture
This presentation presents the evolution of Mr. Smith’s career as a designer of supertall buildings, from Shanghai’s Jin Mao Tower, completed in 1999, to Kingdom Tower,…
Lynn S. Beedle Lifetime Achievement Award: 40 Years of Designing the Supertall
2 Nov 2011 – CTBUH "10th Annual Awards"; Adrian Smith, Adrian Smith + Gordon Gill Architecture
As one of the world’s foremost experts on supertall buildings, Adrian has contributed greatly to the development of this highly specialized building type. Adrian will…
The Evolution of an Idea
Oct 2011 – Presentation at CTBUH 2011 Seoul Conference; Adrian Smith, Adrian Smith + Gordon Gill Architecture
In this talk, Adrian Smith traces the origin of the skyscraper from the early 20th-century tripedal designs to beyond the world's next tallest building.

Browse hundreds of other videos from Council events including conferences and interviews with prominent tall building professionals in the Videos Library

Research Papers

Tall Buildings in Numbers: The Tallest 15 Cities in China
Sep 2012 – CTBUH Journal, 2012 Issue III

Advanced Supertall Building Design in Hot-Summer and Cold- Winter Climates
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai

From Jin Mao to Kingdom: Search for an Asian Supertall Vernacular
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai

More Papers

Research Papers Related to Zifeng Tower

Papers Related to Zifeng Tower

Tall Buildings in Numbers: The Tallest 15 Cities in China
Sep 2012 – CTBUH Journal, 2012 Issue III; CTBUH Research
With over 1.3 billion citizens and a rapidly urbanizing population, China is developing tall buildings more than any other country globally. Currently it has 239…
Advanced Supertall Building Design in Hot-Summer and Cold- Winter Climates
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai; Jianqiang Li, ISA Architecture
Climate adaptive design is a prerequisite for designing sustainable tall buildings. With rapid globalization and urbanization, different kinds of techniques and…
From Jin Mao to Kingdom: Search for an Asian Supertall Vernacular
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai; Adrian Smith, Adrian Smith + Gordon Gill Architecture
The paper traces the evolution of Mr. Smith’s career as a designer of supertall buildings, the Jin Mao Tower (1999) to Kingdom Tower, to be the world’s tallest building…
Supertall Building Difficulties and Control Points
Sep 2012 – CTBUH 2012 9th World Congress, Shanghai; Zhao Hui Jia & Min Tang, Greenland Group
This paper takes the world’s seventh supertall, Zifeng Tower, as an example and integrates the authors’ management experiences in more than ten supertall buildings in…
Tallest Buildings Completed in 2010
Dec 2010 – CTBUH Journal, 2011 Issue I; CTBUH Research
In a year dominated by news coverage of the new “World’s Tallest Building” – Burj Khalifa, Dubai – one may be surprised to learn that, besides being the year in which a…

Browse hundreds of other papers published by CTBUH members on a range of multi-disciplinary subjects in the Research Papers Library