THIS PAGE IS DEPRECATED. See the fractal tensegrity in mast.
Consider Snelson's original X-shape, an assembly of two struts and four cables. Cut one of the four cables of the X-shape. The remaining tensegrity components act like an hydraulic jack along the direction of the cut cable. This action is equivalent to a strut under compression, hence named the strut effect. 
See the fractal tensegrity in mast.
Links and References
 Structural Morphology Of Tensegrity Systems by R. Motro, Asian Journal Of Civil Engineering (Building And Housing) Vol. 10, No. 1 (2009) Pages 1-19