New Courtyard of René-Cassin College in Éloyes, France
In order to increase the number of places in the René-Cassin college canteen in Éloyes, the Departmental Council launched major expansion works in 2020. This extension required the reconstruction of a new timber courtyard covering an area of 420 m².
|Investor||Vosges Departmental Council|
The engineering office D-Bois was responsible for the study of the new college courtyard.
The sawtooth roof sections of the courtyard are largely covered by translucent polycarbonate sheets, allowing natural light to enter.
The self-supporting frame is made of a timber and metal multi-material. 41 tubular galvanised steel poles are made of circular hollow sections with a maximum height of 5 m. The frame structure consists of ridge purlins and beams with built-up cross-sections (for gutters) made of glued-laminated timber GL24h. These elements rest on posts, the centres of which vary between 1 and 6 m. The frame is completed by load-bearing Chevron bracing and C24 softwood bracing.
Structural Design in RFEM 5
RFEM 5 was used to model and reduce the loads of this courtyard. The design checks of timber elements according to Eurocode 5 and steel elements according to Eurocode 3 were carried out with the RF‑TIMBER Pro and RF‑STEEL EC3 add-on modules.
A tubular column base model with stiffeners was required for stress analysis and design.
Since the structure is a Category III building located in Seismic Zone 3, a seismic analysis was carried out using the add-on modules RF‑DYNAM Pro – Natural Vibrations and RF‑DYNAM Pro – Equivalent Loads.
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RF-/STEEL Fatigue Members Add-on Module for RFEM/RSTAB | Fatigue Design of Members According to EN 1993-1-9
RF-IMP/RSIMP Add-on Module for RFEM/RSTAB | Generation of Equivalent Geometric Imperfections and Pre-Deformed Initial Structures
RF-/JOINTS Steel - Tower Add-on Module for RFEM/RSTAB | Hinged Connections of Lattice Towers According to EC 3
RF-/TOWER Effective Lengths Add-on Module for RFEM/RSTAB | Determination of Effective Lengths for Lattice Towers
RF-/TIMBER AWC Add-on Module for RFEM/RSTAB | Design of Timber Members According to ANSI/AWC NDS-2015 (US Standard)
RF-/JOINTS Timber - Timber to Timber Add-on Module for RFEM/RSTAB | Design of Direct Timber Connections According to Eurocode 5
RF-/JOINTS Steel - Column Base Add-on Module for RFEM/RSTAB | Hinged and Restrained Column Bases According to EC 3
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