Space frames: Difference between revisions
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Truss-simple.scad.png|Simple truss | Truss-simple.scad.png|Simple truss | ||
Truss-spacers.scad.png|Truss with spacers | Truss-spacers.scad.png|Truss with spacers or [[Stacked washers]] | ||
Truss-craftsman.scad.png|Truss with [[tri joints]] | Truss-craftsman.scad.png|Truss with [[tri joints]] | ||
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Revision as of 03:57, 17 May 2021
Introduction
A space frame or space structure (3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior supports. Like the truss, a space frame is strong because of the inherent rigidity of the triangle; flexing loads (bending moments) are transmitted as tension and compression loads along the length of each strut.
Challenges
A triangle is the simplest geometric figure that will not change shape when the lengths of the sides are fixed. In comparison, both the angles and the lengths of a four-sided figure must be fixed for it to retain its shape.
Approaches
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Simple truss
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Truss with spacers or Stacked washers
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Truss with tri joints