Structural Surveillance of Temple Sagrada Família, Barcelona, Spain

Sagrada Familia Barcelona

The construction of the Roman Catholic basilica started in 1882 and is not finished down to the present day. Antoni Gaudì, a Catalan architect and an excellent representative of Modernisme Català, took the helm of the site management. With his round and organic forms, in the style of flora and fauna he left an imprint on the church.

By using a hanging model he realized sophisticated shapes with minimal use of material. Gaudìs arches are based on the concept of a reversed catenary. As a result, there are only compression forces.

Beside the three glorious ornamented façades the church possesses 18 towers after completion. The highest and Jesus Christ sanctified tower will be 170 meters high and therefore the highest steeple in the world.

Within the scope of a survey of Prof. Jäger and Prof. Katzenbach for the UNESCO, the monitoring of the building was necessary during the construction period of the rapid transit railway Madrid – Barcelona – Figueres to minimize the risk of damage.

  • Planning and installation of a monitoring system and surveillance of the church during the construction period of the rapid transit railway between Sans and Sagrera in Barcelona.
  • Enormous FEM analysis and estimation of the state of construction plus assessment of worst case scenario.
  • Vibration analysis

Temple Expiatori de la Sagrada Familia, Junta Constructora

Ingenieursozietät Prof. Dr.-Ing. Katzenbach GmbH


  • Antoni Gaudi
  • Chief architect since 1985: Jordi Bonet i Armengol (Junta Constructora Temple Expiatori de la Sagrada Familia)
  • Description
  • Working tasks
  • Owner / builder