12 December 2018 - CTBUH News
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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."
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).
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."
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
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).
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).
The number of floors below ground should include all major floors located below the ground floor level.
The current legal building name.
Other names the building has commonly been known as, including former names, common informal names, local names, etc.
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.
The CTBUH follows the United Nations's definition of Country, and thus uses the lists and codes established by that organization.
The CTBUH follows the United Nations's definition of City, and thus uses the lists and codes established by that organization.
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.
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.
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."
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).
The number of floors below ground should include all major floors located below the ground floor level.
Number of Parking Spaces refers to the total number of car parking spaces contained within a particular building.
Number of Elevators refers to the total number of elevator cars (not shafts) contained within a particular building (including public, private and freight elevators).
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.
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Proposed
Construction Start
Completed
Façade Maintenance
Fire
Lighting
Property Management
Vertical Transportation
Elevator
Façade Maintenance Equipment
Paint/Coating
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Peer Review
Energy Concept
Façade Maintenance
Fire
Landscape
LEED
Lighting
Property Management
Sustainability
Traffic
Vertical Transportation
Way Finding
Cladding
Elevator
Façade Maintenance Equipment
HVAC
Paint/Coating
Steel
2021 CTBUH Awards
2019 CTBUH Awards
2019 CTBUH Awards
12 December 2018 - CTBUH News
5 December 2018 - Awards
10 April 2019 | Beijing
China Zun is the flagship building of Beijing’s comprehensively planned 30-hectare central business district core. Its gently rising and curving form embodies the historic capital’s...
12 January 2021
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CITIC Tower will be the flagship building of Beijing’s comprehensively planned 30-hectare central business district core.
The tower’s gently rising and curving form resembles an ancient Chinese ceremonial vessel, called the “zun.” The design concept is that of a transforming shell that gradually bends to create a dramatic form. This concept is also applied to other key elements of the tower, including the entrances, ground-floor lobby, and observation deck. At the base, the tower thrusts into the ground with massive corner supports, while the exterior shell is gently lifted up and stretched forward at the four sides. The design physically extends the lobby outward, forming dynamic drop-off spaces. At the top, the exterior envelope becomes more transparent at the observation deck and allows more visibility to the inner trumpet-shaped business center, which lights up at night, forming a beacon that will be visible throughout the city.
Compared to a typically straight or tapering supertall tower form, the concave tower profile offers more valuable prime-floor spaces and ample space for window washing, as well as other support systems, at the top of the tower. While the large top poses significant structural challenges, the larger base provides an opportunity for structural balance, formal contrast, and preferred core-to-perimeter distances.
In a city with the highest seismic fortification requirement of the major cities in China, the structural system was particularly sensitive to adjustments in the complex form of the building. Architects and engineers utilized parametric modeling to greatly expedite the design and coordination process to ensure that the design achieved both an iconic form and a solid structural system.
2021 CTBUH Awards
2019 CTBUH Awards
2019 CTBUH Awards
2021 CTBUH Awards
10 April 2019 | Beijing
China Zun is the flagship building of Beijing’s comprehensively planned 30-hectare central business district core. Its gently rising and curving form embodies the historic capital’s...
18 September 2014 | Beijing
Due to the site location, China Zun has been a high-profile project from the very beginning. The new height of 528m would make the China...
18 September 2014 | Beijing
Thursday 18th September 2014. Shanghai, China. Nengjun Luo of CITIC HEYE Investment CO., LTD. is interviewed by Chris Bentley during the 2014 CTBUH Shanghai Conference...
18 September 2014 | Beijing
In the past, engineers have used hand calculation to carry out structural design, usually with a simplified model. Finite element analysis was then broadly used...
17 September 2014 | Beijing
This presentation describes the MEP and VTS design challenges of the tallest buildings in three major cities in China; namely, Beijing, Suzhou and Guangzhou. The...
11 June 2013 | Beijing
Sir Terry Farrell & Stephan Krummeck of Farrells are interviewed by Jeff Herzer during the 2013 CTBUH London Conference at The Brewery, London. Terry and...
12 January 2021
The tall buildings completed in 2020 have pushed the global average height of the 100 tallest buildings to 399 meters. Across the year, 14 buildings...
20 March 2020
Providing a global overview of tall building development, design and construction, the CTBUH Awards Program and related Tall + Urban Innovation Conference annually survey projects,...
20 March 2020
In the first edition of the 2012 Journal, CTBUH published a Tall Buildings in Numbers study titled Tallest 20 in 2020: Era of the Megatall—The...
20 March 2020
This research paper undertakes a review of the 2012 report by the Council on Tall Buildings and Urban Habitat, “Tallest 20 in 2020: Entering the...
30 January 2020
In 2019, 126 buildings of 200 meters’ height or greater were completed. This was a 13.7 percent decrease from 146 in 2018. The total number...
25 April 2019
This year, CTBUH has vastly expanded its Awards program to consider the Best Tall Building category through several classes of height, rather than geographic regions,...
5 December 2018
These projects will be represented at the CTBUH 2019 Tall + Urban Innovation Conference, where they will compete in real time for winning distinctions in each category.
22 June 2018
CTBUH participated in the China Zun Forum which explored how the China Zun tower can serve as an innovative model for the international tall building industry.
17 January 2018
Check out all of our 2018 Tall Building Predictions, and dive into the full 2017 Tall Building Year in Review data report.
7 September 2017
The CTBUH Australia Chapter’s Brisbane Committee held the third of its 2017 breakfast seminar series on Queensland Infrastructure.
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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