Framework of tetrahedral structure and its method of assembly

摘要

Framework of tetrahedral structure. The invention concerns the right tetrahedral form of a sheltered volume and the method for assembling the angle rafters at their apex (double 45 DEG cut) permitting the walls and the roofing to be treated simultaneously. The structure is formed by three angle rafters, three upper purlins, three intermediate purlins and three lower purlins or pole plates. IMAGE