TU Delft Aula Congress Centre​​​​​​​​​

TU Delft Aula Conference Centre will be the home of the IAEG 2026 congress. The iconic Aula building of 1966 is one of the major landmarks of postwar modernism in the Netherlands, and the central hub of the TU Delft university community. It was listed as National Monument in 2009.

The Aula is a characteristic building of brutalism: there is an abundance of concrete in the building, the reinforcement of which is often kept visible as an architectural element. The construction of the auditorium was a fairly complex task at the time: a 34.5 m long cantilevered box that weighs 1360 tons would be impossible if it were not for the use of prestressed concrete. Cables from the pipe shafts near the auditorium pull the container towards itself, as it were. There are approximately 35 kilometers of prestressing cables in the structure. Furthermore, reinforcing ribs in the box provide extra stability in the construction. The two columns at the entrance of the building reassure visitors about the stability of the building. Like the modern library next door, the Aula is partly founded on a buried sand channel. The length of their piles was difficult to predict before installation. They vary between 18 and 24 m length.  Piles were ordered at the longest expected length and cut to length after pile driving.

Over the years, the building has been nicknamed 'The Frog', because of its wide front and two legs.