- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 16 May 2017
Gate of Europe
American architects Philip Johnson and John Burgee had to come up with a solution to a complex site on one of Madrid’s most important boulevards, the Paseo de la Castellana. A significant setback from the street was required in order to clear a subway interchange.
The resulting structural expressionistic towers are 114 m (374 ft) tall, with an inclination of 15º. They stretch 30 m from their base over the boulevard.
The structural solution involved a 60x10x10 m concrete counterweight located on the opposite side of the inclination under the ground and connected to the top of the tower by cable. This provided the necessary counteraction to the overturning forces.
The building is further strengthened by a primary diagrid of structural steel at the buildings’ perimeters, and a reinforced central core housing the main vertical circulation. Lateral stability is provided by secondary horizontal and vertical structural steel members, expressed architecturally on the facades.
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
What U-values are, why they matter and how they are calculated.
The need to ensure that we plan for all aspects of our bio-economy
BSRIA calls on government to reach deeper into the causes of pollution.
George Demetri brings a whole new level of technical knowledge to Designing Buildings Wiki.
Quality professionals need to take an active role in driving the completion process forwards.
The innovations needed to move from rhetoric to realisation.
Creating a sense of place, with radically-low running costs and the highest comfort levels.
A conversation between David Mitchell and Caitlin DeSilvey.
A quick guide to brick sizes.
The Union Street development in Southwark was a passion, as well as a business endeavour.
Do our water quality standards demonstrate to the public that their supply is clean?
A third of practitioners do not have easy access to the knowledge they need.
Sustainable approaches to relief, recovery and reconstruction after a natural disaster.