Letter from the Guest Editor: Reciprocal Structures, An Overview

Abstract

Guest editor Alberto Pugnale introduces the theme of and contributors to special issue of the Nexus Network Journal dedicated to Reciprocal structures.

The role of symmetry in reciprocal frame structures

“…The harsh treatment of the timber surface and the accidental arrangement of the secondary parts exclude the possibility that the construction was ever designed to be visible. The same situation found in Wollaton Hall in Nottingham, where an irregular RF is hidden behind a suspended ceiling which does not reflect a reciprocal nature of any kind (Pugnale and Sassone, 2014).…”

“…One shall note that the illustration has been coupled with carpentered wheels. In addition, it has not been arranged by function, but by the geometry of the timber structure which has a rotational symmetry (Pugnale and Sassone, 2014).…”

“…3). Among his drawings, there is a tessellation dividing the Euclidean plane to quadrats and other rectangles (p4g, 4*2) in addition to the square tiling (p4, 442), and another one which consists of triangles and hexagons (p6, 632) (Williams, 2008;Roelofs, 2008;2010;Pugnale and Sassone, 2014).…”