01 Fakultät Architektur und Stadtplanung

Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/2

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Publication Type: search.filters.UBSTyp.KonferenzbeitragInstitute: search.filters.UBSInstitut.Institut für Tragkonstruktionen und Konstruktives EntwerfenAuthor: search.filters.author.Knippers, Jan

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Now showing 1 - 4 of 4
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    Nature-inspired generation scheme for shell structures
    (2012) La Magna, Riccardo; Waimer, Frédéric; Knippers, Jan
    Although less researched and put into practice in the building environment, pure plate structures are to be observed frequently in biological structures. The 3-plate principle which is common in the morphology and growth pattern of natural systems is also found to be of a structurally optimum content when considered from a plate point of view. This is for instance the case of the sea urchin’s plate skeleton morphology, which served as biological inspiration for the recently built ICD/ITKE Research Pavilion 2011 at the University of Stuttgart. The current paper will focus on the 3-plate principle and its mechanical features, also presenting study models to analyse the structural characteristics and advantages of the principle. Along with the theoretical background, the paper will introduce the structural concept of the pavilion, as well as the analysis methods used for its design and engineering.
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    Integrated design methods for the simulation of fibre-based structures
    (2013) Waimer, Frédéric; La Magna, Riccardo; Reichert, Steffen; Schwinn, Tobias; Menges, Achim; Knippers, Jan
    The production of structural components based on fibre-reinforced polymers (FRP) for the building industry is still characterised by a classic downstream development process from design through engineering and down to fabrication. In the aerospace and automotive industry, the current technical developments in simulation and manufacturing processes have reached a highly advanced status. Nevertheless, these manufacturing and Analysis processes are in most cases non-transferable or unsuitable for architectural and structural purposes. The goal of the research presented in this paper is to take advantage of the benefits of FRPs within the architectural domain - focusing on material efficiency, durability and light-weight construction - and to find solutions for the problem of transferability into the building scale. For the construction of a Pavilion built on the campus of the University of Stuttgart in 2012, process-specific tools with a high degree of accuracy embedded from the start were developed for the material analysis, optimisation and fabrication steps. In contrast to product prototyping, which forms the basis of industrial mass production, prototype here refers to the establishment of processes within the context of a post-industrial, customised fabrication paradigm.
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    Form-finding of grid shells with continuous elastic rods
    (2011) Li, Jian-Min; Knippers, Jan
    Grid shells with continuous elastic rods have the advantages to generate curved spaces with uniform members and joints. However, finding the boundary conditions, including the grid pattern and bearing positions, which lead to a specific geometry, is not an easy task. Designers have to keep equal grid lengths, minimise the residual forces and ensure the smoothness of geometries simultaneously. In this paper, we present a new numerical method which can derive the grid pattern and bearing positions in accordance with a desired geometry. This is done by finding the least strain energy state of the elastic grid in the solution domain defined by constraints. This method can provide architects a grid pattern that satisfies all the geometrical demands. At the same time, a structure with less strain energy is favoured by engineers. This is especially important for elastic grid shells, whose structural stability is largely affected by the residual forces.
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    Integrative hybridity : a framework for the co-design of hybrid systems
    (2025) Duque Estrada, Rebeca; Chen, Tzu-Ying; Amudhan, Kalaivanan; Losi, Samuel; Marsillo, Laura; Shevidi, Shirin; Knippers, Jan; Menges, Achim
    Hybrid bio-based materials offer innovative solutions in construction, addressing design challenges that single materials cannot meet alone. The integration of material's complementary characteristics enables a balanced demand for resources and allows for the investigation of novel tectonics and typologies in architecture. Despite the advancements in integrative design methods, known as co-design, there is a lack of methodologies and frameworks for designing a hybrid system. This study proposes a method to enhance and expand the co-design process of hybrids by incorporating critical factors integral to their development. The objective is to create a foundation for the development of bio-based hybrids in architecture. The methods extend the co-design process, wherein complementary material properties are considered, material and spatial relationships are established, building system logics are categorized, and guiding inquiries facilitate the evaluation of the system at both material and architectural levels. The methods are demonstrated by two case studies. One involves hybrid systems made of timber and Flax Fiber Polymer Composite (FFPC), and the second evaluates state-of-the-art hybrids demonstrating its broader applicability. The findings (i) demonstrate the potential to align material roles with project-specific criteria and (ii) validate the method as an effective tool to guide the design of hybrid systems.