CAaCO Pavilion

Team member(s): Ignacio Salinas Barrena
Modified by Ignacio Salinas Barrena on December 4, 2023

Catenary Arc Connection

Pavilion Research

GERMAN PAVILION – EXPO 1967
World Exposition

Year:1967

Architects:
Frei Otto and Rolf Gutbrod

Site: Universal Exposition, Quebec Montreal.

Renowned German architect Frei Otto, known for his emphasis on lightweight structures and organic forms, utilized the principle of the catenary in many of his designs, including the German Pavilion for the 1967 World Expo. The catenary shape allows for the efficient distribution of loads and stresses as these structures take advantage of the inherent tension and resistance of the curved form, achieving stability without the need for excessive heavy materials.
In the German Pavilion, Frei Otto employed cables and thin membranes that, when suspended, adopted catenary forms, creating a lightweight and resilient structure. This organic shape not only generated a visually striking design but also allowed for an optimal distribution of loads, optimizing the structural efficiency of the building.

Parametric Principle

01.- Squere plan Distribution
02.- Area and Height
03.- Perimeter Arcs
04.- Central Voids and Poles
05.- Squere Mesh Membrane

“Catenary Arc Connection”

The proposed project follows a distribution based on a square base (Square Base Distribution) as the starting point for its structure. This design is characterized by the use of catenary arches around the perimeter (Catenary Arcs Perimeter), providing a natural and efficient form for the distribution of loads and tensions.
Additionally, the project includes the presence of a central vertical pole (Vertical Pole) that acts as a focal point and support for the structure. This element provides stability and allows for the connection of other components.
At the center of this arrangement, there is a central circular void (Central Circular Void) that creates an open space, establishing a point of architectural interest and allowing natural light to enter or interaction with the surroundings.
For the cover or membrane, a flexible diamond-shaped pattern (Flexible Diamond Pattern Membrane) is used, adapting to the curved shape of the catenary arches. This lightweight and adaptable membrane extends from the perimeter to the center, providing protection against the elements and contributing to the dynamic and contemporary aesthetic of the design.
Together, these five parameters define a project that merges a square distribution with organic elements, integrating structural efficiency, aesthetic design, and spatial functionality into an innovative and versatile architectural composition.