superframe
A system in which multiple framed tubes are connected by horizontal framed trusses.
A superframe is a complex framing system which joins multiple framed tubes, each with its own rigid perimeter, by means of horizontal framed trusses.
Each tube has a perimeter frame, and the horizontal trusses connect those tubes into a larger frame. The connection is part of the load-resisting arrangement, rather than simply a passage or floor spanning between otherwise separate towers.
A bundled tube groups tube structures together, while this superframe connects multiple tubes through horizontal framed trusses. A core plus outrigger system connects a central core to perimeter columns. Large columns alone do not establish the tube-and-truss arrangement described here.
Related definitions
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bundled tube
A system in which multiple tube structures are clustered together for greater strength. -
buttressed core
A framing system with a strong central core reinforced by shear walls or other rigid elements radiating from it. -
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. -
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.