chicago tallest buildings under construction

The columns also house piping and utility lines, eliminating the need for interior column chases that so often deprive buildings of valuable office space. Similar to the World Trade Center towers, the Aon Center employs a tubular steel-framed structural system with “V”-shaped perimeter columns to resist earthquakes, reduce sway, minimize column bending, and maximize column-free space. The building’s shape and scale are reminiscent of New York’s original World Trade Center buildings, its architectural contemporaries. Simple in design, the Aon Center appears monolithic, without any setbacks or adornments. Originally clad in Carrara marble, it was the tallest marble-clad building in the world until it was reclad in white granite due to safety concerns in the early 1990s. At the time of its completion, the building was only the sixth supertall tower ever constructed. The Aon Center is one of the “string of pearl” buildings that stand-out on Chicago’s skyline for their remarkable height. Located in downtown Chicago overlooking Millennium and Grant Parks on the eastern edge of the Loop. Within a composite building’s primary structural elements. Where known, the CTBUH database breaks out the materials used Examples include buildings which utilize: steel columns with a floor system of reinforcedĬoncrete beams a steel frame system with a concrete core concrete-encased steel columns Ĭoncrete-filled steel tubes etc. steel, concrete, timber) are used together in the main structuralĮlements. ForĮxample, a Steel Over Concrete indicates an all-steel structural system located on top of anĪll-concrete structural system, with the opposite true of Concrete Over Steel.Ī combination of materials (e.g. all-steel, all-concrete, all-timber), one on top of the other.

Or concrete slab on top of timber beams is still considered an “all-timber” structure as theĬoncrete elements are not acting as the primary structure. Note that a building of timber construction with a floor system of concrete planks An all-timber structure may include the use of localized non-timber connections between Reinforced concrete which has been precast as individual components and assembled togetherįrom timber. Note that a building of steel construction with a floor system of concrete planks orĬoncrete slab on top of steel beams is still considered an “all-steel” structure as the concreteĮlements are not acting as the primary structure.įrom concrete which has been cast in place and utilizes steel reinforcement bars and/or steel Both the main vertical/lateral structural elements and the floor spanning systems are constructedįrom steel.

Chicago tallest buildings under construction