Full-Culm Bamboo Structural Systems in Brazil:
摘要
This paper examines contemporary architectural practices in Brazil and abroad that utilize full-culm bamboo as a primary structural element. Ten case studies - four in international contexts and six from the state of São Paulo - built from 2017 onward were systematically analyzed. The methodology comprised three main steps: (1) developing an analytical framework, (2) gathering data, and (3) conducting the analysis. The theoretical framework integrated approaches proposed by Mouton (2021), Widyowijatnoko (2012), and Larrinaga (2022), focusing on geometrical configuration, connector force transfer and fabrication techniques. Data for international examples were collected through documentary research, while Brazilian case studies were examined via site visits, interviews, and document analysis. Findings show that the structures exhibit geometric diversity, combining multiple connector types and fabrication methods. International projects frequently employ traditional “fish-mouth” connections that requiring specialized artisanal labor yet rely on relatively low-tech industrial components. In contrast, Brazilian examples feature more technologically advanced connectors, but use less overall bamboo volume, reflecting constraints related to labor availability and smaller building footprints. Additionally, although the International Network for Bamboo and Rattan (INBAR) identifies over 60 globally prioritized bamboo species, only a limited subset is selected for structural applications, dictated by local availability, supply-chain status, and existing knowledge of mechanical properties. By showcasing the interplay between design experimentation, construction methods, species selection and labor constraints, these insights pave the way for broader adoption of bamboo-based construction in global sustainability initiatives, particularly in the Global South.