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2020-01-29

Sports Venue in Donzère, France

To meet the needs of its citizens, the city of Donzère decided to build a sports hall on a large triangular island, at the foot of the historic village. The new structure, dedicated to local schools and clubs, created the opportunity for sports event practice and competitions.

Technical Details

The building is divided into two parts. The first part houses the gymnasium while the second includes the fitness studio, dojo ring, and administrative offices.

Two large truss beams with a wooden lattice, also known as mashrabiya style, are placed at the height of the vertical window panels, allowing for natural light throughout the gymnasium. The beams include a clear span of 147 ft over the gymnasium auditorium. The upper and lower truss chords are BLC 25.82x103.34-inch beams oriented flat, while the truss web includes BLC 5.51x7.87-inch compression members and 0.27 x 18.07 x 18.07-inch tension and diagonal members. This optimal truss configuration gradually distributes the internal forces with the appropriate stiffness, meaning additional stiffness at the supports and reduced stiffness near the mid-span. The diamond-shaped frame allows natural filtration of daylight.

Project Design Engineers and Calculation Tools

The engineering company Arborescence, in collaboration with the engineering company CBS-CBT, utilized RFEM to analyze the structure and RF-DYNAM Pro to perform the seismic analysis.

Investor City of Donzère, France
www.mairie-donzere.fr
Approval planning Tekhne Architects, France
www.tekhne-architectes.com
Arch'Eco Architects, France
www.arch-eco.com
Building calculation Arborescence, France
www.arborescence-concept.com
Timber Construction and Additional Calculations CBS-Lifteam, France
www.cbs-cbt.com


Project Specifications

Model Data

Number of Nodes 1339
Number of Lines 1387
Number of Members 1351
Number of Surfaces 24
Number of Load Cases 37
Number of Load Combinations 66
Number of Result Combinations 14
Total Weight 197.693 tons
Dimensions (Metric) 54.900 x 80.233 x 12.650 m
Dimensions (Imperial) 180.12 x 263.23 x 41.5 feet
Program Version 5.22.01

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