structural systems

by Thomas DeVoss

subtilitas:

Gion A Caminada - Multi-purpose hall, Vrin 2003.

A proper appreciation of Caminada’s work comes from an understanding of the lineage of his portfolio. Born and raised in the small alpine village of Vrin, Switzerland, Caminada has spent the majority of his life working within the community. As the 1970’s brought about both economic and population decline to the region, Caminada aided in the regeneration of the town with a series of public projects that aim to enrich the community with new amenities that create a lineage with the local history and coexist with the historic setting. Through his lifelong practice in the region, Caminada has formed a deep understanding of the local traditions, building methods, details, materials, and constructions that define Vrin’s aesthetic. With his own work, this knowledge is used to deconstruct, abstract, and even update these techniques for more contemporary uses. This can be seen in many of his projects, from the smaller, private residences, to public buildings such as the multi-purpose hall above.

In this structure, the standard roof truss system used to structure local barns is pulled apart to its most basic elements. Together with engineer Jurg Conzett, the somewhat abstract structural members are a combination of the pairs investigation of Robert Maillart’s Magazzini Generali in Chiasso, as well as the layered construction of the Westminster Hall roof. Rather then using a standard glue-laminated structure for the truss bracing, individual boards sit freely within tensioned straps, which receive additional rigidity from a series of vertical slats that push against the roof pitch. The efficiency of the structure is visually deceiving and light, especially considering the regions heavy snow loads and lack of a central king post in the truss span. The extrapolated design allows the structural forces inherent in the building to be physically traced as each board slides against that adjacent. Scans via, photos © Lucia DegondaChristoph Engel.