Читать книгу Rethinking Prototyping - Группа авторов - Страница 98

We automated the generation process of the lamella structure through a Rhino script to create a large variety of design solutions with different lamella configurations. The four triangular, chamfered columns define the position of the first twelve lamellas which sweep along the intersection of column face and roof surface. Every lamella extends to the roof perimeter. Intersections between these lamellas form a first fragile system of interconnected bars that needs additional elements to support the cantilevering roof. A generative algorithm placed the second set of lamellas. Two random points on the roof perimeter define the end points of a beam. The lamellas interweave into a coherent structure which is capable to cantilever, span and transfer the horizontal forces.

Fig. 7 Lamella configuration based on column position and perimenter subdivision.

After generating a multitude of different configurations the results are analysed and evaluated. First, we looked for lamella intersections with angles smaller than 30 degrees. In a previous project these small angles created problems during assembly and welding as working space becomes too small for the tool at work. We rated therefore all generated solutions by the number of those problematic intersections.

Fig. 8 Bundles of lamellas with spatial proximity create complex nodes. Here: the Sphere project, Deutsche Bank Frankfurt, Mario Bellini Architects, 2011 (left). Small angle make welding difficult (right).