%A Luca Possidente %A Fabio Freddi %A Nicola Tondini %T Fire response of steel frames retrofitted against progressive collapse %J Fire Safety Journal %I Elsevier BV %L discovery10206138 %V 153 %O © 2025 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/) %D 2025