Cathédrale Des Sports

This project, located on the banks of the river and on a former industrial zone, obliges us to take into account phases of underpressure, with aggressive water. The control of cracking was therefore important. In addition, the majority of the concrete remains rough and visible.

 

Christophe Faurie

Vinci

Bordeaux, France

This project, located on the banks of the river and on a former industrial zone, obliges us to take into account phases of underpressure, with aggressive water. The control of cracking was therefore important. In addition, the majority of the concrete remains rough and visible.

The design file indicated an expansion joint, but this joint called into question the stability of the structures, as very little bracing was located in one area. We therefore demonstrated this by modelling and presented the method of justifying the shrinkage caused, by simulating a thermal load case equivalent to the shortening of the concrete.

A building that is open to the exterior also requires consideration of temperature variations. We therefore created daily and annual cycle thermal load cases, combined by phase.

The importance category of the building requires a seismic justification, which we were able to carry out on the model, taking into account the essential parameters (partial mass coefficient of each level, pile stiffnesses, …)
Seismic, shrinkage and thermal expansion have a big impact on the second-order justifications of the structures, which are in large part of great height (6m under beams in the sports halls, and up to 13m under beams in the climbing area).

The creation of specific material (orthotropic), allowed us to take into account the behaviour of the prefabricated elements.

 

User benefits:

  • With Advance Design, we were able to study and justify all the technical issues of the project.
  • The creation of a model with a behaviour close to reality is possible with numerous functionalities, such as the creation of orthotropic materials, the type of adapted connections (relaxations, fixed supports, elastic, stops), the beams with variable inertias, or the visualization of the cracking states.
  • The inclusion of reinforcement directly in the model, in order to verify the structures under load, directly in the Advance Design model.
  • The calculation by phase allows us to simulate different phases simultaneously and to exploit the combined results.
  • The possibility to study variants on separate models and to reintegrate validated ones, via Graitec BIM import/export (GTCX).
  • The direct connections with the reinforcement modules are an asset in the analysis and exploitation of the model, especially for the bracing walls with all the integrated seismic forces.