22 January 2019 - 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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Acoustics
Building Monitoring
Foundation
Geotechnical
Interiors
LEED
Lighting
Parking
Planning
Property Management
Vertical Transportation
Wind
Cladding
Concrete
Crane
Electrical
Elevator
Façade Maintenance Equipment
Fire Suppression
Formwork
HVAC
Plumbing
Sealants
Solar Panels
Steel
2021 CTBUH Awards
2021 CTBUH Awards
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22 January 2019 - CTBUH News
17 January 2018 - CTBUH News
23 September 2020
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08 July 2019 | Moscow
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The Lakhta Center constitutes the epicenter of St. Petersburg’s Primorsky District, employing a wide range of public functions alongside transportation infrastructure in an effort to anchor a sustainable economic zone. Originally planned for the historic center of the city, the project – then named Okhta Centre – garnered widespread media attention as stakeholders contended with the various impacts it would have on the image of the city. Ultimately, the tower was moved to its present location, adopting a new name and a fresh context to inform the master planned development. The tower will provide space for offices, as well as several public resources, including a planetarium, medical center, performance hall, and a bank.
The theme of the tower's design is that of a lonely spire in a horizontal landscape, with a unique shape informed by concepts of extrusion, torsion, and tension. The building’s designers sought to create an optimal balance between office and public areas, ultimately conceiving a complete community within the building’s walls. Outside of the building, the plan for the surrounding area incorporates greened and landscaped spaces. An open 2,000-seat amphitheater and green promenade with fountains, paths, and benches are all integrated into the design.
Lakhta Center incorporates a number of innovative energy-saving technologies into its design. A double-glazed façade increases the level of thermal insulation, leading to a reduction in heating and air-conditioning costs. Similarly, the premises will be heated using excess heat generated from working technical equipment. To combat the dual effects of extreme height and a harsh winter, an ice formation control system will be implemented to protect the building’s façade and passers-by below from the dangers of falling ice.
2021 CTBUH Awards
2021 CTBUH Awards
2021 CTBUH Awards
2021 CTBUH Awards
2021 CTBUH Awards
23 September 2020
The 2020 National Building Code of Canada (NBC) and the 2021 International Building Code (IBC) both include Tall Wood Buildings (TWB) and are hailed as...
20 March 2020
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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...
26 October 2015
Samsung and the authors’ involvement in these major tall and complex building projects have facilitated the transfer of the technologies and best practices to projects...
16 September 2014
Each supertall building project has its own design challenges and difficulties. The experience with Okhta “O” center which became Lakhta “L” center complex project in...
08 July 2019 | Moscow
The 405-meter One Tower in Moscow is set to become one of the tallest residential buildings in Europe, the deputy mayor of Moscow announced as...
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Check out our monthly predictions based on our industry intelligence to see what trends and milestones will shape the industry in the year to come!
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13 October 2016
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18 August 2016
CTBUH has released a study that looks at the recent proliferation of twisting towers creating a new generation of iconic buildings throughout the world.
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