AIA Central
Hong Kong
Height 185 m / 607 ft
Floors 35
Official Name

The current legal building name.

AIA Central
Other Names

Other names the building has commonly been known as, including former names, common informal names, local names, etc.

AIG Tower
Type

CTBUH collects data on two major types of tall structures: 'Buildings' and 'Telecommunications / Observation Towers.' A 'Building' is a structure where at least 50% of the height is occupied by usable floor area. A 'Telecommunications / Observation Tower' is a structure where less than 50% of the structure's height is occupied by usable floor area. Only 'Buildings' are eligible for the CTBUH 'Tallest Buildings' lists.

Building
Status
Completed
Architecturally Topped Out
Structurally Topped Out
Under Construction
Proposed
On Hold
Never Completed
Vision
Competition Entry
Canceled
Proposed Renovation
Under Renovation
Renovated
Under Demolition
Demolished
Completed, 2005
Country

The CTBUH follows the United Nations's definition of Country, and thus uses the lists and codes established by that organization.

City

The CTBUH follows the United Nations's definition of City, and thus uses the lists and codes established by that organization.

Function

A single-function tall building is defined as one where 85% or more of its usable floor area is dedicated to a single usage. Thus a building with 90% office floor area would be said to be an "office" building, irrespective of other minor functions it may also contain.

A mixed-use tall building contains two or more functions (or uses), where each of the functions occupy a significant proportion of the tower's total space. Support areas such as car parks and mechanical plant space do not constitute mixed-use functions. Functions are denoted on CTBUH "Tallest Building" lists in descending order, e.g., "hotel/office" indicates hotel function above office function.

office
Structural Material

Steel
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from steel. Note that a building of steel construction with a floor system of concrete planks or concrete slab on top of steel beams is still considered a “steel” structure as the concrete elements are not acting as the primary structure.

Reinforced Concrete
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from concrete which has been cast in place and utilizes steel reinforcement bars.

Precast Concrete
Both the main vertical/lateral structural elements and the floor spanning system are constructed from steel reinforced concrete which has been precast as individual components and assembled together on-site.

Mixed-Structure
Utilizes distinct systems (e.g. steel, concrete, timber), one on top of the other. For example, a steel/concrete indicates a steel structural system located on top of a concrete structural system, with the opposite true of concrete/steel.

Composite
A combination of materials (e.g. steel, concrete, timber) are used together in the main structural elements. Examples include buildings which utilize: steel columns with a floor system of reinforced concrete beams; a steel frame system with a concrete core; concrete-encased steel columns; concrete-filled steel tubes; etc. Where known, the CTBUH database breaks out the materials used in a composite building’s core, columns, and floor spanning separately.

composite
Core
Reinforced Concrete
Columns
Steel
Floor Spanning
Steel
Height

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment. This measurement is the most widely utilized and is employed to define the Council on Tall Buildings and Urban Habitat (CTBUH) rankings of the "World's Tallest Buildings."

Architectural
185 m / 607 ft
To Tip
185 m / 607 ft
Floors Above Ground

The number of floors above ground should include the ground floor level and be the number of main floors above ground, including any significant mezzanine floors and major mechanical plant floors. Mechanical mezzanines should not be included if they have a significantly smaller floor area than the major floors below. Similarly, mechanical penthouses or plant rooms protruding above the general roof area should not be counted. Note: CTBUH floor counts may differ from published accounts, as it is common in some regions of the world for certain floor levels not to be included (e.g., the level 4, 14, 24, etc. in Hong Kong).

35
Floors Below Ground

The number of floors below ground should include all major floors located below the ground floor level.

2
# of Parking Spaces

Number of Parking Spaces refers to the total number of car parking spaces contained within a particular building.

90
Tower GFA

Tower GFA refers to the total gross floor area within the tower footprint, not including adjoining podiums, connected buildings or other towers within the development.

39,014 m² / 419,943 ft²
Rankings
#
30
Tallest Office Building in Hong Kong
#
488
Tallest Composite Building in Asia
#
6
Tallest Composite Building in Hong Kong
Construction Schedule
2002

Construction Start

2005

Completed

Developer
Architect
Structural Engineer
MEP Engineer

(not specified)

Developer
Architect
Structural Engineer
MEP Engineer

(not specified)

Contractor
Hip Hing Construction

About AIA Central

AIG Tower is located in the Central District of Hong Kong, on a site that was most recently home to the former Furama Hotel. Developed as a joint venture between AIG, CapitaLand, and Lai Sun Development, the building holds further distinction as the site where AIG opened its first office in the territory in 1930. The architectural design draws upon the visual imagery of Chinese junks that were vital to the city’s economic growth. The building’s form, tapered at its base and apex on three sides of the building, evokes the sails of the vessels which once crossed Victoria Harbor.

Large floor plates provide modern, flexible space and reduce the number of stories needed to meet Owner requirements. Structurally, the lateral load resisting system consists of a reinforced concrete core coupled with exterior steel columns through two-story steel trusses at the mid-rise refuge floor and the third floor mechanical level. Serving dual functions as outrigger and transfer trusses, this resulted in an efficient structural system with a high degree of robustness, while providing flexibility in meeting architectural and programming requirements.

Additional program considerations include the reuse of foundations from the Furama Hotel, which minimized the impact to neighboring structures; and adhering to stringent vibration requirements due to the proximity of the Mass Transit Railway, which prevented the use of additional pilings. Furthermore, the fewer floors of building core, lift shafts, and stairs effectively reduced the amount of construction materials, resulting in a more environmentally friendly addition to the Hong Kong skyline. These structural contributions to the project were integral to the “Excellent” rating issued by the Hong Kong Building Environmental Assessment Method (HK-BEAM).

Finally, the striking design of the associated footbridge advances the state of the engineer’s art. The new footbridge links the AIG Tower to the Hong Kong elevated walkway network and enhances convenience for pedestrians. Spanning 45 meters (150 feet), the partially enclosed bridge is formed from an asymmetrical box truss, S-shaped in plan. The truss is supported by pipe diagonals of diminishing sizes which architecturally express the flow of forces.