definition
strict definition
buttressed core
A framing system with a strong central core reinforced by shear walls or other rigid elements radiating from it.
Pictured: Burj Khalifa
A buttressed core framing system is built around a strong central core, which is further reinforced by shear walls or other rigid elements that radiate out from it, in a manner similar to a tripod though not necessarily three in number.
The radiating elements reinforce the central core. Their connection to it provides the buttressing action rather than simply dividing the surrounding floor space.
The tripod comparison describes how supports can spread from the center. It does not require exactly three walls, wings, or other reinforcing elements.
buttressed core Photos
Related definitions
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bundled tube
A system in which multiple tube structures are clustered together for greater strength. -
core plus outrigger
A framing system in which a rigid core is tied to the perimeter with sturdy horizontal beams. -
framed tube
A system which resists lateral forces through a tightly interlocked perimeter frame. -
rigid frame
A framing system whose moment-resisting joints help the framework resist distortion. -
shear wall
A structural system using rigid vertical walls to resist distortion under lateral forces. -
shear wall plus frame
A system in which a strong slab wall acts in concert with strong joints to stabilize the frame. -
space truss
A three-dimensional truss with diagonal connections outside a single plane, used to resist lateral forces. -
superframe
A system in which multiple framed tubes are connected by horizontal framed trusses. -
trussed frame
A framework whose intersecting vertical and horizontal members are reinforced by one or more series of diagonal braces. -
trussed tube
A system in which the perimeter walls act as a rigid tube and are reinforced by vertical trusses. -
tube-in-tube
A system which combines an exceptionally strong perimeter frame with a similar tube at the core.