Renovation of the Fondation Avicenne, Cité Internationale Universitaire de Paris, France
The Fondation Avicenne, formerly known as the Maison de l'Iran created in the 1960s, is a building of the Cité Internationale Universitaire de Paris (CIUP) which now shelters many houses where students coming from all around the world are accommodated in an outstanding landscaped environment. The architect Claude Parent, completely redesigned the sketches of the first Iranian architects Mosheine Foroughi and Heydar Ghiai, who originally designed this project decided by Mohammad Reza Chahd'Iran.
|Architect||Gilles Béguin & Marie Suzanne de Ponthaud|
|Design check office||JPS Contrôle|
|Construction company||Baudin Châteauneuf|
Design and Features
The main steel structure of the Fondation Avicenne gravitates around three transverse crossbars, embedded at the base with beams forming horizontal frames, rising from 38 meters above the ground, allowing two sets of four stories to be suspended above a ground floor building eventually shaping a nine-story main facility.
The cross-members outlining the frames are connected to each other by a longitudinal edge and are composed of reconstructed welded boxes with internal reinforcements and stiffeners while the columns of these frames follow the same design plan. The two blocks float away from these columns and their sway is inconspicuously stabilized by struts merely connected to the columns and floors of levels 2 and 7.
The bracing is ensured by wind beams and by concrete slabs on each level cast on steel sheeting and supported on transverse steel beams, which are suspended on the facade and in the span.
The ground-floor building lies below, which sits on a reinforced concrete basement and features a steel structure consisting of trusses and purlins, which are vertically braced by concrete walls.
The six frame columns are each supported by a concrete shaft displaying a diameter of 2 meters, which loads down on the limestone layers to a depth of more than 22 meters.
The exterior staircase made of steel, which stands as a genuine masterpiece highlighted by its inverted double spirals, leads to the different room levels while additionnally connecting the two interior elevators.
This renovation project consisted in preserving the main purpose of this facility by delivering 111 rooms for students as well as for academics; also by restauring some rooms to their former conformity and original furniture, which will allow the design offices to monitor the existing structure for future service loads.
Structural Design Software
The steel structure of the main building as well as the acting loads (permanent, operating and climatic loads) were entirely modeled and designed (except for the external staircase) by the engineering office NEMO-K during the design phase with the FE design software RFEM and the RF-STEEL EC3, RF-CONCRETE and RF-DYNAM Pro add-on modules. These devices were used to check separately the steel and concrete elements as well as the vibration behavior of the structure.
Relying on this modeling, the results emphasized the need to provide reinforcement for specific structural steel parts such as suspension frame parts as well as stabilization and bracing elements.
The Jaillet & Rouby office, which specifically deals with steel structures, added their calculations to the results obtained by NEMO-K during the design phase. The Baudin Châteauneuf company will eventually perform a third calculation during the execution phase, which will ultimately allow to check the existing foundation shafts resting on the deep limestone's layers.
The engineering office NEMO-K also focused on the reconstruction of facade elements, ranging from simple joinery and glazing to infill panels, thermal insulation and solar protection, using contemporary materials thus considerably improving thermo-acoustic performances as well as the air and water tightness.
Project Location27 D Bd Jourdan
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