APPLICATION OF STRUCTURAL FIRE SAFETY ENGINEERING TO THE CANOPY OF THE FORUM DES HALLES, IN PARIS

摘要

Actually, in the very heart of Paris, Ch(a)telet-Les Halles, an outstanding redevelopment project is being undertaken with the purpose of creating a new landmark building with a vast steel structured roof called as "Canopy " covering the whole ground area of "Forum des Halles" shopping centre and the central subway exchange hub of Paris.According to the prescriptive rules of French fire safety regulation, a heavy standard fire resistance rating is required for this building.However, the extraordinary characters of this structure have led to a specific solution on the basis of the performance-based fire safety engineering (FSE) methodology.The fire model FDS and the FEM code ANSYS were used to analyze in detail the fire performance of the structure for each selected design fire scenario.Obtained results show that even with the most challenging scenario (library fire inside the building with external flames) there was no risk of failure of the structure.Consequently, the fire safety engineering methodology has permitted to demonstrate that the fire protection of the steel structure of the Canopy can be fully avoided.