Blast and Impact Loading and Response of Structures
Full Session with Abstracts
Records show that over 50% of all reviewed accidental events include both blast and fire . However, there is currently no standard do assess the resistance of fire and blast façade products (doors, walls and windows) to blast and fire events occurring sequentially. This paper describes a new step in the verification of blast and fire façade products for industrial facilities by introducing single-sample fire-post-blast tests. Such tests have sporadically been carried out on doors, walls and windows by some specialized suppliers , but the industry could benefit from a clear categorisation for these requirements including clarity on the related verification method.
For a typical project where the risk analysis indicates a requirement for protection against fire and blast, several verification methods are possible. The optimal verification method will depend on the project requirements. Typical verification methods involve a combination of FEM analysis and fire and /or blast tests, with associated cost varying from one method to another. Though single-sample fire-post-blast testing obviously is the most reliable verification method to accurately predict the performance during an actual fire-post blast event, this might not always be required. This paper proposes fire categories (in conjunction with ASCE guidelines for blast categories ) to establish which type of verification method is to be prescribed, when a combination of blast and fire resistance is required.
This paper provides examples of typical notation that includes the proposed categorisation of blast and fire rated façade products as well as other key safety performance criteria, including gas tightness, individually for doors, walls and windows.