Three-Dimensionality in Reciprocal Structures: Concepts and Generative Rules

Abstract

Reciprocal systems based on superimposition joints, i.e. where un-notched bars sits on the top or in the bottom of each other, could be regarded as being intrinsically three-dimensional because of their natural out-of plane development. This paper presents seven of these three-dimensional configurations, conceived and built by the students of the Master of Science in ''Architectural Design'' at Aalborg University. They have been developed as an integral part of a 2-week workshop, organized and run by the authors during the fall semester 2011. Since physical models are instruments that trigger the exploration of new typologies because of the direct interaction they provide with the designer the students were called to deal with the issue of three-dimensionality in reciprocal systems through scale models and actual scale prototypes.

Estruturas recíprocas: revisão sistemática da literatura e identificação de pontos críticos para projeto e produção

“…Porém, ainda é necessário aplicar o conceito desenvolvido em outras geometrias, com nexors curvos, uma vez que a geometria da conexão deve ser determinada com base na geração da estrutura com auxílio de métodos de form-finding. O artigo apresentado por Parigi et al (2014) apresenta uma proposta de conexão, sendo uma extensão dos estudos de Pellegrino e Calladine sobre um tipo específico de articulação para a montagem de ERs. Apesar dos resultados iniciais positivos sobre a avaliação do número de articulações internas e externas, ainda é "[...] necessário trabalhos adicionais para completar as especificações de todas as possíveis condições de restrições, como a inclusão de articulações deslizantes [...]" (PARIGI et al, 2014, p. 58, tradução nossa).…”

Laminar Constructions and Reciprocal Structures

“…Some isolated cases seem to appear more by chance than by any systematic analysis with different geometries and settings. There also exist very interesting exceptions, such as the works of Baverel and Pugnale (2014) and others (Kohlhammer and Kotnik 2011;Parigi and Pugnale 2014;Sánchez et al 2010).…”

Reciprocal Frame (RF) Structures: Real and Exploratory

“…Examples both real and exploratory show that RFs offer great potential for creating innovative forms, such as those developed in the student workshops as well as the Mount Rokko-Shidare Observatory (Parigi and Pugnale 2012). However, the RF structure is interesting not only because of the potential for achieving novel and expressive forms, but also because it offers a possibility for achieving fast construction by using repetitive elements of equal length.…”