# Space frames

From

Technique: Space frames

Designer: | Phil and RJ Jergenson |
---|---|

Tools: | Wrenches |

Parts: | Frames, Nuts, Bolts, End caps |

Techniques: | Bolting, Triangles |

# 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

Truss with spacers or stacked washers

Truss with tri joints