A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In this contribution, the task of determining appropriate forms for stressed membrane surface structures is considered. Following a brief introduction to the field, the primitive form-finding techniques which were traditionally used for practical surface design are described. The general concepts common to all equilibrium modelling systems are presented, followed by a more detailed exposition of the Force Density Method. The extension of the Force Density Method to geometrically non-linear elastic analysis is described. A brief overview of the 'Easy' lightweight structure design system is given with particular emphasis paid to the form-finding and statical analysis suite. Finally, some examples illustrate the flexibility and power of Easy's form-finding tools. The task of generating planar cutting patterns for stressed membrane surface structures is considered. Following a brief introduction to the general field of cutting pattern generation, the practical constraints which influence textile surface structures are presented. Several approaches which have been used in the design of practical structures are next outlined. These include the physical paper strip modelling technique, together with geodesic string relaxation and flattening approaches. The combined flatten and planar sub-surface regeneration strategy used in the Easy design system is then described. Finally, examples are given to illustrate the capabilities of Easy's cutting pattern generation tools.
In this contribution, the task of determining appropriate forms for stressed membrane surface structures is considered. Following a brief introduction to the field, the primitive form-finding techniques which were traditionally used for practical surface design are described. The general concepts common to all equilibrium modelling systems are presented, followed by a more detailed exposition of the Force Density Method. The extension of the Force Density Method to geometrically non-linear elastic analysis is described. A brief overview of the 'Easy' lightweight structure design system is given with particular emphasis paid to the form-finding and statical analysis suite. Finally, some examples illustrate the flexibility and power of Easy's form-finding tools. The task of generating planar cutting patterns for stressed membrane surface structures is considered. Following a brief introduction to the general field of cutting pattern generation, the practical constraints which influence textile surface structures are presented. Several approaches which have been used in the design of practical structures are next outlined. These include the physical paper strip modelling technique, together with geodesic string relaxation and flattening approaches. The combined flatten and planar sub-surface regeneration strategy used in the Easy design system is then described. Finally, examples are given to illustrate the capabilities of Easy's cutting pattern generation tools.
Computational modelling concepts
Computermodellierung von Leichtbaustrukturen
Ströbel, D. (author)
2001
8 Seiten, 5 Bilder, 10 Quellen
Conference paper
English
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