Customer Project

Investor Bouygues, France
Architects Shigeru Ban Architects Europe, France
Jean De Gastines Architects, France
Structural Analysis Timber Construction sblumer ZT GmbH, Austria
Detailed Structural Analysis SJB Kempter Fitze AG, Switzerland
Other Project Members TEMPO – Ile Seguin, Departement Hauts-de-Seine

The CIMU - ILE DE SEGUIN is part of the cultural centre "La Seine Musicale" on Seguin Island (Ile Seguin) in Boulogne-Billancourt, a suburb of Paris. The CIMU houses a concert hall that can seat up to 1,150 people. The round facade is clad with glass on the outside.

At the top of the wooden structure includes a photovoltaic sail which moves around the CIMU following the sun's path. The Dlubal customer sblumer ZT GmbH from Austria provided the timber engineering and design. The structural frame and truss analysis software RSTAB was used for the structural analysis.


The three-dimensional freeform structure of the CIMU is composed of glued-laminated timber. A total of 650 m³ double curvature glulam beams were used. Visually, the wooden structure resembles a woven basket. The timber structure is mounted on steel columns which transfer the loads to a circular foundation.

The architecture of the new cultural centre was made to resemble a cruise ship. The design is by the Japanese architect Shigeru Ban and the Frenchman Jean de Gastines. Both men previously designed the Center Pompidou in Metz which was also analyzed and designed in RSTAB.

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RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD