Diagonal ZeroZero (also Torre Diagonal ZeroZero, Diagonal 00) is a skyscraper in

Barcelona Barcelona ( , , ) is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous municipality of Spain. With a population of 1.6 million within ci ...

Catalonia Catalonia (; ca, Catalunya ; Aranese Occitan: ''Catalonha'' ; es, Cataluña ) is an autonomous community of Spain, designated as a '' nationality'' by its Statute of Autonomy. Most of the territory (except the Val d'Aran) lies on the nort ...

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

. The building is tall with 24 floors.Torre Diagonal Zero Zero , Buildings , EMPORIS
- emporis.com It was designed by Emba Estudi Massip-Bosch arquitectes in Barcelona, founded and led by Enric Massip-Bosch. Diagonal ZeroZero hosts the corporate headquarters in Catalonia of

Telefónica Telefónica, S.A. () is a Spanish multinational telecommunications company headquartered in Madrid, Spain. It is one of the largest telephone operators and mobile network providers in the world. It provides fixed and mobile telephony, broadba ...

Group, as well as its Research and Development Center. The building is built on land owned by the City of Barcelona, was developed by the public agency Consorci de la Zona Franca, and leased to Telefónica Group. Diagonal Zero Zero is an example of high-tech architecture. Its structure, calculated by the engineering firm MC2-Julio Martínez Calzón, was erected in eight months, working in three shifts a day, seven days a week. For a few months there were over 450 workers operating simultaneously on-site. The total construction time, after an initial phase in which works were stopped for few months, amounted to two years until inauguration. The structure of the building is a variation of the tube-in-tube scheme, in which the core (or inner 'tube') is built in concrete, and the perimeter structure (or outer 'tube') is built in steel. This perimeter structure is split in two rings: an interior vertical structure of very slender H pillars (10x10cm in the upper half of the tower, 14x14 cm in the lower half, under the 13th floor hosting the technical floor), placed every 135 cm; and an exterior bracing lattice supporting the torsion and flexing stresses of the tower produced by wind or earthquakes.

References

{{Authority control Headquarters in Spain Office buildings completed in 2011 Telefónica High-tech architecture Skyscraper office buildings in Barcelona

See also

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