project C:STRUCTURE
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References | References |
Revision as of 22:11, 29 November 2011
STRUCTURE
CONCEPT
In order to make a fully adaptable construction, the structural system should provide for both positive and negative curvatures. A system of inflatable components is implemented and will work in this manner:
- achieving over-pressure in the top components creates positive curvature in the structure - the arch
- achieving over-pressure in the bottom components creates negative curvature and stiffens the whole structure - the counter-arch
The over-pressure in the inflatable tube has the effect of transforming the component into a curved beam-like element.
The components have been weaved in a brick-like pattern for increased rigidity. The brick pattern is adopted for the top and bottom layers and for lateral component strips.
Air-valve diagram system - every patch / strip has 2 compressors for each layer; every component has one on-off valve
RESEARCH
Over the duration of the course several structural systems have been analyzed:
- muscle / pulley system
- cube- grid system
- hanging system
- inflatable system
The result of the analysis is that the inflatable system seemed to offer the best performance regarding the concept implemented. Two options for the inflatable system were discussed:
Linear component
Bubble component
After analyzing both options the general conclusion is that the linear component presents a better performance regarding the project concept and final implementation. The main reasons for choosing the linear component are:
- the linear component presents similar structural stiffness as the bubble component
- the linear component has better dynamics with the component frame
- the linear component is better suited for fluent, flowing arches that are inline with the concept
- the linear component has a simpler tube and valve infrastructure
- the linear component has better material implementation regarding the 1:1 scale prototype
References
VALIDATORS
STRUCTURE DESIGN
Cable pulley ground support system - concept
The strips are connected to the ground via cables attached to the pulleys. The pulleys are buried into the ground and the cables glide through small slits in the ground surface. The system holds the arch structure by tension of the cables activated by the pulley motors. Every arch patch has 4 cable anchors 2 for each support.
Movie
Component fabrication drawings
-top view scale 1:5
-plan section scale 1:5
-cross section scale 1:5
-elevation scale 1:5
-detail axonometric scale 1:5