Ciman, L;
Freddi, F;
Tondini, N;
(2021)
A Retrofit Method to Mitigate Progressive Collapse in Steel Structures.
In:
EUROSTEEL 2021 Sheffield — Steel's coming home.
(pp. pp. 1246-1254).
Wiley: Hoboken, NJ, USA.
Preview |
Text
Freddi_Ciman et al_2020_A Retrofit Method to Mitigate Progressive Collapse in Steel Structures - Author's Version.pdf - Accepted Version Download (1MB) | Preview |
Abstract
Accidental events, such as impact loading or explosions, are rare events characterized by a very low probability of occurrence. However, their effects often lead to very high human losses and economic consequences as are likely to trigger the progressive collapse of the buildings. The pro-gressive collapse of structures attracted the attention of many researchers and the topic has been widely investigated in recent years. In addition, increasing interest has been shown also on the definition of retrofit strategies able to increase the robustness of existing structures. The present work investigates the performance and the design of a retrofit solution to increase the robustness of steel moment resisting frames. A case study structure is selected and modelled in OpenSees, including both mechanical and geometrical non-linearities. Non-linear static analyses have been carried out on the frame, simulating a column loss scenario to investigate the subsequent load re-distribution. The simulations showed that the case study was unable to redistribute the load and hence retrofitting was required. Among others, a truss system was added at the rooftop level of the building allowing the definition of an alternative load path. The analyses outcomes showed how the proposed retrofit method allows to increase the robustness of the case study structure and allowed for critical remarks on the checks required when this retrofit system is employed.
| Type: | Proceedings paper |
|---|---|
| Title: | A Retrofit Method to Mitigate Progressive Collapse in Steel Structures |
| Event: | 9th European Conference on Steel and Composite Structures (Eurosteel 2020) |
| Location: | Sheffield, UK |
| Dates: | 01 September 2021 - 03 September 2021 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/cepa.1418 |
| Publisher version: | https://doi.org/10.1002/cepa.1418 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10134687 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
