Use of triangles is one of the fundamental principles for bamboo construction which is commonly used in most bamboo structures for stability and rigidity. Keeping with our principle of exploring new designs and connections in every project we decided to challenge the notion of using triangulation for structural stability. The project was to build a bamboo pergola as an outdoor semi-open space on which creepers and vines can be grown to provide shade during summer months. This structure was built during a Bamboo Construction Workshop we conducted at Bandusia Country Retreat, St. Albans, NSW in Sep 2011.
The design of the structure is inspired from the surrounding landscape and the existing house which is very Japanese in character. The structure has a square plan with four columns on its four corners. Each column is made of four bamboo poles and the beams are made of corbelled bamboo members which reduce in its length consecutively. Each corbelled bamboo beam member is bolted to the column which helps achieve a rigid frame.