Top 12 Happenings of 2016, Month-by-Month
19 December 2016 - CTBUH News
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142
Global
Height rank
Height rank
U.S. Bank Tower
Los Angeles
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Metrics
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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).
310.3 m
/ 1,018 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."
310.3 m
/ 1,018 ft
3
Occupied:
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
294.9 m / 968 ft
1
2
3
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).
72
Below Ground
The number of floors below ground should include all major floors located below the ground floor level.
2
Height
310.29 m / 1,018 ft
Floors
72
Official Name
The current legal building name.
U.S. Bank Tower
Other Names
Other names the building has commonly been known as, including former names, common informal names, local names, etc.
Library Tower, First Interstate Bank World Center, US Bank 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, 1990
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
Postal Code
90071
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.
steel
Official Website
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
310.29 m / 1,018 ft
To Tip
310.29 m / 1,018 ft
Occupied
294.9 m / 968 ft
Observatory
281 m / 922 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).
72
Floors Below Ground
The number of floors below ground should include all major floors located below the ground floor level.
2
# of Elevators
Number of Elevators refers to the total number of elevator cars (not shafts) contained within a particular building (including public, private and freight elevators).
24
Rankings
-
By function
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-
By material
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#
142
Tallest in the World
#
21
Tallest in
North America
#
21
Tallest in
United States
#
2
Tallest in
Los Angeles
#
53
Tallest Office Building in the World
#
13
Tallest Office Building in
North America
#
13
Tallest Office Building in
United States
#
1
Tallest Office Building in
Los Angeles
#
11
Tallest Steel Building in the World
#
8
Tallest Steel Building in
North America
#
8
Tallest Steel Building in
United States
#
1
Tallest Steel Building in
Los Angeles
Construction Schedule
1987
Construction Start
1990
Completed
Architect
Contractor
Building Monitoring
Elevator
Sealants
Steel
Retrofit Companies Involved
Interiors
You must be a CTBUH Member to view this resource.
Developer
Maguire Properties
Architect
Structural Engineer
CBM Engineers
M. Ludvik Engineering
Contractor
Building Monitoring
Interiors
OUE Limited
Ceiling
Armstrong World Industries
Elevator
Fire Proofing
Grace Construction Products
Sealants
Steel
Retrofit Companies Involved
Interiors
CTBUH Initiatives
Videos
07 November 2013 | Los Angeles
Lynn S. Beedle Lifetime Achievement Awardee Henry Cobb's career is remarkable because of his ethical and forward-thinking approach to the design of tall buildings and...
Research
11 June 2014
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About U.S. Bank Tower
When built, U.S. Bank Tower was the first supertall building, not just in Los Angeles, but also in the entire western United States to the west of Chicago and Houston. Originally known as Library Tower, it was constructed across the street from the historic Central Library of Los Angeles and was developed utilizing air rights purchased from the city, preserving the historic open setting of the low-rise building. Its Art-Deco-via-Post-Modern design took cues from established local icons of the 1920s, including City Hall and the Central Library. It is also notable for the public-realm improvements at its base, which is built into a hill. A cascading set of waterfalls and stairs descends around the perimeter.
When built, U.S. Bank Tower was the tallest structure to be located in a seismically active area. Designers based the layout of the tower plan on a concept of overlapping geometries, a circular form superimposed onto a rectilinear matrix, a shape that is translated to the outside of the building and extruded upward into a series of upper level setbacks and a textured façade made up of triangular window bays. The triangular bays are repeated in the crown with more pronounced angles providing greater visual distinction between it and the tower below.
At ground level, development of the tower incorporated the creation of the Bunker Hill steps, a pedestrian link ascending the topographical change between the modern downtown towers built in the Bunker Hill area primarily in the mid to late 20th century and the shorter early 20th century buildings of the historic downtown core.
U.S. Bank Tower has dominated the Los Angeles skyline as its tallest building for 27 years, and has been seen in the backdrop of numerous films produced by Hollywood studios. Its presence will remain a key feature of the skyline, even as its title of the city’s tallest has since passed on to Wilshire Grand Center and as other changes occur to downtown Los Angeles in the in the years to come.
Quick Facts
When completed, it was the world's tallest building in a seismic zone.
Features a 45 ft (13.7 m) slide that hangs off the side off the building 1,000 ft (304.8 m) above ground.
First building to be destroyed by aliens in the 1996 movie "Independence Day."
Videos
07 November 2013 | Los Angeles
Lynn S. Beedle Lifetime Achievement Awardee Henry Cobb's career is remarkable because of his ethical and forward-thinking approach to the design of tall buildings and...
Research
11 June 2014
In this installment of Tall Buildings in Numbers, CTBUH considers how helipads are used on skyscrapers, and which are the highest in the world. The...
CTBUH Initiatives
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19 December 2016
Top 12 Happenings of 2016, Month-by-Month
Check out the Council on Tall Buildings and Urban Habitat's top stories of 2016 for each month and take a look ahead with the Council’s monthly predictions for 2017.
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