An overhead irrigation assembly having multiple truss rods is disclosed. In an implementation, an overhead irrigation assembly includes a first support, a second support, and a span of pipeline supported between the first support and the second support. The overhead irrigation assembly also includes a first truss rod tensioned between the first support and the second support and a second truss rod tensioned between the first support and the second support. Spreaders are suspended from the span of pipeline that are configured to separate the first truss rod from the second truss rod. The overhead irrigation assembly also includes a third truss rod is also tensioned between the first support and the second support. The first truss rod, the second truss rod, and third truss rod are configured to maintain a generally bow shape in the span of pipeline.

A tensegrity structure with one or more tensegrity units formed by a membrane in combination with three or more elongate compression members obliquely disposed in a spiral relationship in compression within the membrane. The ends of the compression members within each tensegrity unit and in adjacent tensegrity units are spaced from one another, and the compression members of adjacent tensegrity units overlap along a longitudinal dimension. The membrane forms anticlastic curves and has variable double curvature between ends of compression members. Multiple tensegrity units can form a column, which can be tapered, curved, or otherwise constructed.