Mitigation of the risk of progressive collapse in steel and composite building frames under exceptional events
Structural robustness for the mitigation of progressive collapse is a specific safety consideration which is now addressed in modern codes and standards, including the Eurocodes, and which requires particular care from all professionals involved in the construction industry, including architects, designers, constructors, control officers- and insurance managers. The importance of the robustness design has been recognised by world shaking disasters such as the 9/11 collapse of Twin Towers in New York City and the need for practical guidelines has been triggered at this occasion. Indeed, the availability of practical guidelines addressed to the various construction professionals and covering specific use and risk situations for buildings helps to give confidence in the safety of steel and composite constructions.
During the past decade, a significant number of research projects related to the structural response of steel and composite buildings under various exceptional loading situations (impact, fire, earthquake…) have been carried out, especially in Europe and in the USA. As an outcome of these recent scientific actions, different design approaches have been proposed to mitigate progressive collapse accounting for the full potential of materials used in steel and composite structures.
The purpose of the project entitled “Mitigation of the risk of progressive collapse in steel and composite building frames- FAILNOMORE” was to consolidate the knowledge developed in the aforementioned research and transform it into practical recommendations and guidelines. The set of practical and user-friendly design guidelines considered in the project focuses on steel and composite structures subjected to unidentified threats and identified threats such as impacts, explosions, fires and earthquakes; it refers also to the available normative documents so as to form in itself a commonly agreed European design methodology. The project was funded for 24 months (starting from July 2020) by the Research Fund for Coal and Steel (RFCS) under grant agreement No 899371.
The so-developed design guidelines are promoted through the preparation of a design manual made available in English, Portuguese, German, Italian, Romanian, Czech, Polish, Dutch, Spanish and French which will be presented through national workshops organised in 11 European countries before the end of June 2022.
FAILNOMORE is an EU funded programme under RFCS, the Research Fund for Coal and Steel