Gernay, Thomas[Université de Liège > Département ArGEnCo > Ingénierie du feu >]
Proceedings of the 39th IABSE Symposium
39th IABSE Symposium - Engineering the future
21-23 September 2017
[en] Fire ; Building ; Prescriptive design ; Performance-based design ; Membrane action ; SAFIR
[en] Current codes and standards for fire design of structures in the United States are mainly based on design at the component level using prescriptive approaches, while performance-based design for fire can be used to address the needs for designing modern buildings with cost-effective solutions. Previous research shows that, when system-level performance is considered, fire protection on secondary beam elements in composite steel-concrete floor systems is not necessary due to the development of a membrane action in the concrete slab during fire. This study compares the fire design of a 9-story office building using prescriptive and performance-based designs. The safety levels of the two designs are investigated and compared. It is shown that performance-based design can be used to achieve the required level of safety currently enforced in the U.S. prescriptive guidelines, while providing an opportunity for cost reduction in fire protection material.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS