Free Form Structural Design: Schemes, Systems & Prototypes of Structures for Irregular Shaped Buildings
IOS Press, 2007 - 187 pagina's
Irregularly shaped building designs with surfaces curving in two directions ('double curved'), and also known as Free Form, Blob or liquid architecture, have gained renewed interest in the last decade due to the then emerging availability and user-friendliness of computerized design tools in the 1990's. These tools were introduced in the domain of architectural design through a technology transfer from film-, car and aeroplane industry. Whereas architects explored the tools' formal consequences and proposed building designs with them, the disciplines involved in the technical realisation of such building designs underwent little change, as they focused on digitising their existing working methods. This has resulted in structural designs which, despite fulfilling the functional and structural requirements, are not perceived as fully satisfying by the engineering disciplines. This study demonstrates how structures consisting of systematically generated components fulfil the needs for structures appropriate for free form building designs. The systems resulting from this research give unprecedented freedom of shaping, while maintaining rational fabrication standards. This can be implemented through parametric modelling, in which systems adapt themselves to the local geometry, as well as to local structural needs. Technically speaking, structures of irregularly shaped buildings no longer need to be constructed as 2-dimensional frames that slice through a building with total disregard of the building's geometry.
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design variables and their use in structural design research
Precedents of free form structures in the BLIPframework
The design of alternative structural schemes and systems
Case study implementations of schemes onto systems and structural designs
Prototyping and further development of Delta Ribs
Conclusions and recommendations
Overige edities - Alles weergeven
additional alternative angle of incidence anticipated anticlastic application bending building envelope building shape cone conically curved connections constraints constructed contours cross section curved sides curved surfaces customised defined deformation degrees of freedom Delta Rib system depicted in Figure design variables developable surfaces dimensional Document title double curved extrusion fabrication formal freedom formwork frames free form building Gaussian curvature geometry grid hypothetical solution implementation input curve input points Level of abstraction level of scale load transfer looping manufacturing material efficiency monocoque mould Naum Gabo nodes orientation parametric Parent features Planar base materials planar elements Planar members plane plates polygonal positioning principal curvatures proposed prototype realised resulting rib sides rib's rotation Ruled surface ruling lines Scheme's variables Serpentine Gallery setup sheet thickness shell slices steel stiffness straight strip structural action structural capacity Structural depth structural design structural scheme structural systems timber tion trusses tube tubular flange twist