cubus engineering

OTE Telecoms Central Building, Athens

OTE Telecoms Central Building, Athens

The Project

A building complex in the center of Athens, which was progressively built in the 1960s and houses the center of the country’s telecommunications organization. It consists of 15 statically independent buildings with basement, ground floor and 2, 5 or 12 floors, of reinforced concrete, with a total area of 53.000 m2.

 

In the process of redesigning and changing the use of different spaces, architectural enhancements, static and antiseismic strengthening, and new E / M installations are required.

 

Technology Centers will remain operational and protected against vibration, dust, dirt, water, sparks and other damage during construction.

 

The strengthening solution provides for the conversion of columns all the way up to “strong columns”, through steel jacketing and concrete infill. Most of the new composite columns have a cross-section with 8 corners to adequately tie up the existing and new concrete they surround. The jacketing increases the strength and deformability of the concrete and makes it practically “unbreakable” under seismic loading.

 

In height, they are connected by the beams, which are possibly reinforced with a steel jacket. In some cases, where there are insufficient possible positions due to the technology, they are connected by webs, as a composite construction of sheet steel and concrete. Within the web of the new composite walls, the confinement is achieved by cross bars in dense grid. At the same time steel acts as a longitudinal and transverse reinforcement of the web of the composite element, but also as a “lost formwork”. Concrete and tie rods also protect steel sheets from buckling. In technology areas where welding is not allowed, the connections are bolted.

 

On all floors, the buildings are connected at the joints and are thus converted from 15 to 7 statically independent buildings. This reduces earthquake movements and avoids the risk of pounding, especially between the two 12-story buildings.

 

In two buildings, which due to the technology cannot be strengthened indoors, strengthening is made on the outside of the facades with shear walls and reinforced concrete frames. The connection to the existing building is made with chemical anchors.

 

The solution is advantageous in terms of speed, cost, safety, flexibility during the phases, as well as the avoidance of dust, water, vibration and disturbances in the technology.

Location
Athens

Date
2015

Owner
OTE ESTATE

Architect

Kokkinou – Kourkoulas Architects & Associates

Contractor

Our Scope of Works
Tender, Preliminary, Final Design, Construction Design, Site Supervision

Characteristic images

Videos

Project location

Share this project

Share on facebook
Share on google
Share on twitter
Share on linkedin

Similar projects

OTE Telecoms Building, Rethymno, Crete Isle

OTE Telecoms Building, Rethymno, Crete Isle

Three neighboring buildings from 1950 in Rethymnon, are reconstructed with conversion of offices to shops. They consist of basement, ground floor and two floors, a total of 1,200 m2, in a central location of the city, with streets around.

Office Building AGET Heracles, Lykovrisi, Athens

Office Building AGET Heracles, Lykovrisi, Athens

Existing office building of the cement industry AGET Heracles (later Lafarge) in Lykovrisi, Attica, made of reinforced concrete, designed by architect A. Tombazis, a reference point for modern architecture in 1968.

Shop Building, Glyfada, Athens

Shop Building, Glyfada, Athens

New construction of reinforced concrete offices and shops, in Glyfada, consists of two basements, ground floor and two floors. In order to better serve the needs of the building, it was also asked to build a mezzanine and to install elevators over the entire height.

Delenco, Office Building, Bucharest

Delenco, Office Building, Bucharest

The Delenco office building in the center of Bucharest consists of a ground floor, ten floors and two basement levels, and is built with reinforced concrete.

Office Building, Ermou, Athens

Office Building, Ermou, Athens

Built in 1960, the reinforced concrete office building in the center of Athens, in Ermou Street, consists of two basement levels, a ground floor with a mezzanine, 7 floors and an attic.

Day Tower, Office Building, Bucharest

Day Tower, Office Building, Bucharest

New, multi-storey building in the center of Bucharest, Romania, whose construction was completed in 2017. A corner, a free-standing building on Unirii Boulevard, next to the Palace of Justice, a building of special visibility.

Office Building, Iera Odos, AthensOffice Building, Iera Odos, Athens-Steel trusses with long spans, Steel bracings

Office Building, Iera Odos, Athens

The office and entertainment building in Iera Odos in Athens, designed by architekt G. Lambrou, consists of a ground floor and five floors made of steel.

Office & Warehouse Complex, Voyatzoglou Systems, Metamorfosi, Athens

Existing office and warehouse building on the national road, Metamorfosi, Attica, consists of two independent reinforced concrete buildings, separated by an expansion joint, with two basement levels, ground floor and two floors. Characteristic of the building are the relatively large spans (15.00 m.) in the interior, where post tensioned beams were used.

Office Building, Kifissia, Athens

Office Building, Kifissia, Athens

In the center of Kifissia, in Kefalari, a suburb of Athens, there is an old hotel of 1955, consisting of a basement, a ground floor and three floors, it is to be rebuilt, upgraded, strengthened, and change use, which requires full architectural, structural and electromechanical redesign.

Shop Building, Ermou, Volos

Shop Building, Ermou, Volos

Existing two-storey building, built in the 30’s, in the center of Volos, in the busiest commercial area, on Ermou street.

cubus engineering

cubus engineering
7, Themistokli Sofouli Str.

154 51, Neo Psyhiko
Athens, Greece

Contact Information
_______________________

Web: https://cubusengineering.gr
Email: cubusengineering@gmail.com
Tel.: 0030 210 6722360, 366, 389
Fax: 0030 210 6722 382