On the 12th of May 2006, the feast-day of Santo Domingo de la Calzada, patron saint of civil engineers, died in his Madrid dwelling the architect Miguel Fisac Serna, who has been one of our models in the field of Spanish architecture. With the intention to prepare for him a special homage, we pose in the following lines a research into one of the most interesting themes of the architect’s production, as are his famous “bones”, that is to say, the prestressed andh hollow-sectioned concrete girders that imitate the look of the bone structures.

With this end in mind we created a work team that grew throughout the national geography and become interdisciplinary and intergenerational, a mixture of the knowledge of our elders and the enthusiasm of our youngsters. The final picture shows a study of thirteen pieces, grouped by families and dispersed in more than a score of places, may of them still standing.

The result translates into a great work of documentation and in a detailed study of the processes and patents that made it possible to create these forms, underscoring the extremely intimate relationship of the architect with the engineering work of his day.

In this way, and along with the figure of Miguel Fisac, we recover from forgetfulness two names of a vital importance for this story: Ricardo Barredo and Vicente Peiró, the first coming from the civil engineering field, with his poststressed patents, and the second one a great pre-fabricator of forgings and façade panels, and to whom we owe some of the most surprising inventions in the field of hollow piece casings.

May this piece of work stand as a sincere homage to a whole generation of technicians that were the protagonists of an exceptional history, the history of the Bones.

Fermin González Blanco.

Architect and Curator of the Exhibition