How Antoni Gaudi´s Complex Structures Based on Catenary Systems

1309 Words3 Pages

How Antoni Gaudi designed complex structures based on Catenary Systems

Several years ago I had an opportunity to visit Barcelona, Spain with my family. This was my grandfather's home port while stationed with the 6th Fleet of the US Navy from 1956-1961. My father wanted to show us the places he had lived, where he attended school, and the architecture that left a permanent impression on him. He spoke often about architect Antoni Gaudí and how his structures were ahead of their time, and unlike anything he had ever seen.

It was the highlight of my trip visiting the Gaudi structures that had now been turned into museums. These attractions were scattered throughout the city of Barcelona (and some not too far away in less populated areas), but most were within easy traveling distance from each other. We'd have a Gaudi destination everyday, since there was so much to absorb with each one. I observed that Gaudi used mathematics extensively in his structures, and was inspired by shapes that often appear in nature, such as soap bubbles, and his surroundings such as the wavy rock drippings of Montserrat. One museum even showed the design concept of the Sagrada Família - a series of chains suspended over a mirror. Looking into the mirror, I was able to see the shape of the church. This was one example of how Gaudi found design inspiration.

Antoni Gaudí was born in Catalonia on the Mediterranean coast of Spain, June 25, 1852. At an early age, he showed interest in architecture, eventually studying in Barcelona. During the late 1870s, Barcelona was the most modern city in Spain and was the home to a large creative community. He spent a brief time in the military, but later returned to Barcelona to finish his studies, and graduated from the...

... middle of paper ...

... arch structures can be represented by small chain models. Antoni Gaudi used this method to model the Sagrada Familia, as shown below.

Thrust force lines are the imaginary lines that indicate where the compressive force in a voussoir or block is located in the thickness of the arch. In an arch, the thrust lines always describe a catenary curve. If the thrust lines touch the inside (intrados) of the arch or leave the wall thickness, then a hinge is created and the arch or dome will buckle out and collapse. If the thrust lines touch the outside (extrados) of the arch or exit the wall thickness, then a hinge is created and the arch or dome will buckle in and collapse. In any masonry arch that stands, the catenary thrust lines are kept within the wall thickness; if thrust lines touch or leave the wall thickness then the arch collapses.

Open Document