The subject of this textbook is a methodical approach on the complex problem-solving process of conceptual structural design, leading to a controlled build-up of insight into the behaviour of the structure and supporting the actual successive design decisions during the conceptual design phase on the basis of a coherent set of solution components.
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Deformation quantities such as strain, curvature and displacement are of paramount importance in seismic design within a performance-based procedure that aims to control the structural response at predefined levels of inelastic action. Given the importance of curvature expressions independent of strength for the design process, and for the particular case of T-shaped walls, the curvature trends at yield, serviceability and ultimate limit state are determined in graphical and analytical form. The comprehensive set of equations proposed in this work are strength independent and allow the reliable computation of limit-state curvatures, essential in a displacement-based design approach, and thus the realistic estimation of appropriate ductility factors in the design of T-shaped walls. Furthermore, results regarding the section properties of T-shaped walls, such as the elastic stiffness and the moment capacity for opposite directions of loading, offer additional information on T-shaped walls.
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This article explores the establishment of new commons initiatives from an integrated design perspective. Such a deeper understanding of the initial phase of becoming a commons -i.e. becommoning- and its design is crucial as members embark on a laborious, time-consuming and uncertain process in which they need to make critical design choices for their future commons. The design perspective is brought forward by the collective creation through which group values are explicated, the communal resource and its governance take shape and conditions are forged for the commons to emerge. So, the study presents the ‘becommoning’ framework as a first exploration for such a designerly approach to identify the steps and activities communities need to make at the very begin to start unfolding their initiative. The framework is applied in a case study, namely, for exploring the design of housing commons and related genres like cohousing, residential communities that are recognized as microlaboratories offering general insights for pursuing alternative societal models.
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