Gaudí considered the inverted model of strings of the church at Colonia Güell an indispensable prior experiment in the evolution towards the structural conception of the project of the expiatory church of La Sagrada Família, a synthesis of structure and form.
Gaudí's graphic calculation for the naves of the church was explained in great detail by Domènec Sugrañes in a lecture to the Architects Association, which was collected in his yearbooks (1923). He explained the strategy of determining the volume of each part of the roof and the vaults and looking for the weight and centre of gravity, and inclining the columns in search of the load of those specific points.
Today it has been the architects Carles Buxadé, Joan Margarit and Josep Gómez who have calculated the naves of the church using computer programmes and according to present day regulations and requirements.
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BEYOND THE GOTHIC
THE TREE STRUCTURE
THE CALCULATIONS OF LA SAGRADA FAMÍLIA