01 Fakultät Architektur und Stadtplanung

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    ItemOpen Access
    An assessment of the correlation between urban green space supply and socio-economic disparities of Tehran districts : Iran
    (2021) Nasri Roodsari, Elmira; Hoseini, Parian
    Contact with UGS (urban green spaces) is a critical element for urban quality of life and an essential aspect of environmental justice, so all citizens should be able to access UGS regardless of their social and economic condition. In this regard, several studies have shown a positive correlation between UGS justice with socio-economic status in different contexts. In recent decades, Tehran has also experienced much wider socio-economic inequalities, reflected in its spatial configuration. Therefore, this study explored the possible correlation between the UGS supply and accessibility in the 22 Tehran municipal districts and their socio-economic development level. For this purpose, UGS supply (per capita) and accessibility (areas within 800 m walking distance to UGS) indicators are used to assess the UGS justice in Tehran. The research data are drawn from official spatial and statistical data, analysed using ArcGIS. This quantitative data are converted into map layers to shape a basis for UGS assessment indicators in conjunction with socio-economic status. The findings show an unbalanced distribution of UGS in Tehran. However, the areas with highest socio-economic status are at an optimum level of UGS justice in relation to all 22 districts, but no direct correlation confirms the same results for areas with lower socio-economic status.
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    ItemOpen Access
    Tensegrity FlaxSeat : exploring the application of unidirectional natural fiber biocomposite profiles in a tensegrity configuration as a concept for architectural applications
    (2024) Renner, Markus; Spyridonos, Evgenia; Dahy, Hanaa
    Material selection is crucial for advancing sustainability in the building sector. While composites have become popular, biocomposites play a pivotal role in raising awareness of materials deriving from biomass resources. This study presents a new linear biocomposite profile, fabricated using pultrusion technology, a continuous process for producing endless fiber-reinforced composites with consistent cross-sections. The developed profiles are made from flax fibers and a plant-based resin. This paper focuses on the application of these profiles in tensegrity systems, which combine compression and tension elements to achieve equilibrium. In this study, the biocomposite profiles were used as compression elements, leveraging their properties. The methods include geometrical development using physical and digital models to optimize the geometry based on material properties and dimensions. A parametric algorithm including physics simulations was developed for this purpose. Further investigations explore material options for tension members and connections, as well as assembly processes. The results include several prototypes on different scales. Initially, the basic tensegrity principle was built and explored. The lessons learned were applied in a final prototype of 1.5 m on a furniture scale, specifically a chair, integrating a hanging membrane serving as a seat. This structure validates the developed system, proving the feasibility of employing biocomposite profiles in tensegrity configurations. Furthermore, considerations for scaling up the systems to an architectural level are discussed, highlighting the potential to enhance sustainability through the use of renewable and eco-friendly building materials, while promoting tensegrity design applications.
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    ItemOpen Access
    Vom Mandala zum Flächennutzungsplan : die Einführung moderner Stadtplanung in eine außereuropäische Stadtkultur: der Fall Kathmandu, Nepal
    (2021) Herrle, Peter
    Die Arbeit analysiert die Einführung westlicher Stadtplanung in eine außereuropäische Stadtkultur am Beispiel Kathmandu in der Zeit nach der Öffnung des Landes 1951 bis Ende der 1970er Jahre.