Buttressed core Last updated June 27, 2025 Structural system for high buildings
A buttressed core is a structural system for high buildings, consisting of a hexagonal core reinforced by three buttresses that form a Y shape.
Properties A cross-section of comparisons of various towers, from ground level from top to bottom: Burj Khalifa , Taipei 101 , Willis Tower , and the original World Trade Center The buttressed core supports itself both laterally and torsionally. It also eliminates the need for column transfers, and moves loads in a smooth path from the building's top into its foundations.
Advantages The buttressed core structural system offers several advantages over traditional methods:
Stability: It provides excellent resistance to lateral forces, such as wind and seismic activities, enhancing the overall stability of the building. Efficiency: The system allows for a more efficient use of materials, reducing the overall weight and cost of the structure. Flexibility: It enables architects and engineers to design taller and more slender buildings without compromising on structural integrity. Aesthetics: The Y-shaped design offers unique architectural possibilities, contributing to the visual appeal of skyscrapers. Disadvantages Despite its benefits, the buttressed core system also has some drawbacks:
Complexity: The design and construction process can be more complex and require specialized knowledge and skills. Cost: Initial costs may be higher due to the need for precise engineering and high-quality materials. This page is based on this
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