The wind can also trigger vibration problems. Many types of structures are sensitive to these phenomena, including large cantilevered roofs and canopies. The effects can be worse if the natural frequencies are low and lie within the high-energy range of the wind spectrum.
In support of the structural design of Esteyco and the architectural design of Jean Nouvel, Principia carried out the dynamic characterisation of the extension of the Reina Sofía National Museum (MNCARS) in Madrid, determining the vibration modes and frequencies of the new roof.
The figures show a virtual image of the structure and a finite element model used in the dynamic evaluations.