92
Global
Height rank
Twin Towers Guiyang, West Tower
Guiyang China
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."

1
To Tip:

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest point of the building, irrespective of material or function of the highest element (i.e., including antennae, flagpoles, signage and other functional-technical equipment).

335 m / 1,099 ft
2
Architectural:

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."

335 m / 1,099 ft
Floors

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).

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).

74
Below Ground

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

2
1 2 Twin Towers Guiyang, West Tower Outline
Height 335 m / 1,099 ft
Floors 74
Official Name

The current legal building name.

Twin Towers Guiyang, West Tower
Other Names

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

Huaguoyuan West Tower, Huaguoyuan Tower 2
Name of Complex

A complex is a group of buildings which are designed and built as pieces of a greater development.

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, 2020
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.

Address
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.

hotel / 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
Concrete Encased 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
335 m / 1,099 ft
To Tip
335 m / 1,099 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).

74
Floors Below Ground

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

2
Rankings
#
92
Tallest in the World
#
55
Tallest in Asia
#
46
Tallest in China
#
2
Tallest in Guiyang
#
46
Tallest Mixed-use Building in the World
#
33
Tallest Mixed-use Building in Asia
#
29
Tallest Mixed-use Building in China
#
2
Tallest Mixed-use Building in Guiyang
#
55
Tallest Composite Building in the World
#
48
Tallest Composite Building in Asia
#
42
Tallest Composite Building in China
#
2
Tallest Composite Building in Guiyang
Construction Schedule
2012

Construction Start

2020

Completed

Architect
China Huaxi Engineering Design & Construction Ltd.
Structural Engineer
MEP Engineer
SuP Ingenieure GmbH

Interiors

Elevator

CTBUH Initiatives

Research

12 January 2021

CTBUH Research

The Council on Tall Buildings and Urban Habitat has released its annual report, CTBUH Year in Review: Tall Trends of 2020, part of the Tall...

About Twin Towers Guiyang, West Tower

Located in the heartland city of Guiyang, this twin-tower development seeks to enrich the city skyline with a simple modern presence that emphasizes symmetry and balance. The towers are located near the Guiyang commercial street, which is a main thoroughfare through the city, and lies south of an ecological wetland park. The façade of the twin towers reflects simplicity and uniformity, enriched with an assortment of explicit details. The 1.8 meter-wide glass panes cover the towers without visible spandrels, forming a streamlined appearance that unifies the complex.

The two towers are offset from a large six story retail podium which then extends an additional 5 floors underground. The towers were constructed simultaneously and rose from a deep excavation of the entire site. Both towers are constructed with composite frames composed of a reinforced concrete core and exterior columns of steel fully encased in concrete. The towers are square in plan with chamfered corners and are framed with 9 structural columns on each side of the perimeter which reduces to 5 large columns at the base through the use of a load transfer of diagonal columns spanning through four floors just above the main lobbies. The perimeter structural grid remains the same for the full remaining height of the east tower, however on the west tower, this grid reduces to 7 columns on each side for the uppermost floors where a hotel is located above office space.

When the towers were completed, they became Guiyang’s first supertall buildings as well as the centerpiece of an emerging cluster of new tall buildings on the western side of the city.

12 January 2021

CTBUH Research

The Council on Tall Buildings and Urban Habitat has released its annual report, CTBUH Year in Review: Tall Trends of 2020, part of the Tall...

13 October 2016

The Council is pleased to announce the Top Company Rankings for numerous disciplines as derived from the list of projects appearing in 100 of the World’s Tallest Buildings.

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