Posted: January 12th, 2008 | Author: John Zerning | Filed under: Pergola | Tags: Arch Pergola, garden trellis, three-hinge arch, universal connectors | No Comments »

The Arch Pergola is formed from four pyramidal units bent into an arc and propped by two internal V-shaped supports.
This space frame trellis is a hybrid between an arch and a pergola.
It is formed from four pyramidal units bent into an arc and propped by two internal V-shaped supports.
The structure works like a three-hinge arch, which makes it not susceptible to differential settlements of the foundation – pegs in this case.

The space frame trellis is almost invisible amongst the branches of the plants.

The dynamic and minimal space frame trellis is accentuated by the snow.

The universal connector, using off the peg materials.

Another view of the connector.
Posted: January 8th, 2008 | Author: John Zerning | Filed under: Pergola | Tags: garden pergola | No Comments »
Note that geodesic domes with a fourfold symmetry can be augmented, analogous to orthogonal plane tessellations.

Twin Domed Pergola

Twin Domed Pergola

Twin Domed Pergola
Posted: January 6th, 2008 | Author: John Zerning | Filed under: Pergola | Tags: garden pergola, H.S. Schwartz | No Comments »
These surfaces are referred to as Schwarz’s periodic minimal surfaces, in honour of the mathematician H.S. Schwarz who first explored them in 1867. These periodic minimal surfaces can be tessellated into hexagons and heptagons consisting of equal length edges, The design of this highly efficient structure was inspired by recent research in Fullerenes.

Saddle Shaped Pergola

Saddle Shaped Pergola