Investigation of a performance-based parametric canopy

• Ano de defesa: 2020
• Autor(a) principal: Lucarelli, Caio de Carvalho
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Universidade Federal de Viçosa
• Palavras-chave em Português: Arquitetura sustentável - Métodos de simulação; Tecnologia de Arquitetura e Urbanismo
• Link de acesso: https://locus.ufv.br//handle/123456789/28913

In recent years, global energy demand has increased substantially due to population growth. Therefore, improvements in energy efficiency have become a prominent international business for designers and researchers. This need to create environmentally sustainable projects with lower impact, better thermal comfort, and reduced energy consumption has encouraged the spread of one of the 21st-century design streams called performance-based design. For this reason, this dissertation aims to investigate the steps of creating a performance-based modular canopy, fitted for allowing diffuse radiation and daylight indoors using parametric modeling, simulation-based optimization (SBO), and factorial analysis. We used canopies as objects of study due to the higher insolation load that horizontal surfaces receive in low latitudes, which is Brazil's case. We divided the research into a literature review, a methodology testing, digital shape production processes, shape definition, shape parameterization, computational simulations, the definition of SBO parameters and objectives, and final shape optimization. We introduce the study with a methodology test, formulating a script, running simulations for radiation, and using SBO to produce a canopy based in retro-studies of tree leaves as engineering structures. With the methodology tested, we proceed to the parameterization of the definitive shape, using an analysis of variance (ANOVA) to determine the most robust optimization parameters that would partake in the final SBO. We apply the awning to several naturally conditioned transitional spaces. These transitional spaces present neither indoor nor outdoor conditions and have historical value in Brazil, being present in architecture since the colonial period. They act as passive design strategies, improving the results obtained when simulation the canopy alone. In this study, the transitional spaces are an Entrance Hall, a Fan Atrium Zone, and a Balcony. As the main result, we obtained a process for designing both a leave inspired canopy and an Origami- shaped awning. We presented a methodology for applying SBO during early design stages using Ladybug® and Honeybee® for Grasshopper®. We also diminished the optimization time by selecting the robust optimization parameters beforehand using ANOVA. Concluding, the parameterization and SBO employed analysis concerning radiation and daylight through the assessment of the quantitative objectives Physiological Equivalent Temperature (PET) and Useful Daylight Iluminance (UDI). Keywords: Complex Surfaces. Parameterization. Simulation based Optimization. Luminous and thermal performance.