Lettieri, Annarosa;
Freddi, Fabio;
Latur, Massimo;
(2023)
Experimental and Numerical Analysis of Damage-Free Self-Centring Link for Seismic Resilient EBFs.
In:
Proceedings in civil engineering.
(pp. pp. 898-903).
Ernst & Sohn GmbH
Preview |
Text
Lettieri et al_2023_Experimental and numerical study of a damage-free self-centring link for seismic resilient EBFs.pdf - Published Version Download (1MB) | Preview |
Abstract
Significant progress has been made in recent years for the definition of seismic-resilient structures, chasing the urgent need for structures able to return to undamaged, fully functional conditions in a short time after an extreme event. Seismic-resilient steel structures have been widely investigated, mainly considering solutions based on moment-resisting and concentrically braced frames. However, while the first category may be characterised by low stiffness, the second is often characterised by low ductility. Eccentrically Braced Frames (EBFs) allow overcoming these drawbacks and well-balance stiffness, strength and ductility. This paper presents the numerical and experimental study of a damage-free self-centring link for EBFs. The proposed device uses post-tensioned bars to control the self-centring behaviour and friction devices to provide dissipation capacity. Experimental cyclic tests have been carried out to evaluate the response of the device. A 3D ABAQUS model has been developed to investigate the local response. Finally, a six-storey EBF has been numerically investigated in OpenSees to evaluate the global response. Incremental Dynamic Analyses were performed demonstrating the increased seismic performance of the proposed solution.
| Type: | Proceedings paper |
|---|---|
| Title: | Experimental and Numerical Analysis of Damage-Free Self-Centring Link for Seismic Resilient EBFs |
| Event: | The 10th European Conference on Steel and Composite Structures (Eurosteel 2023) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/cepa.2474 |
| Publisher version: | https://doi.org/10.1002/cepa.2474 |
| Language: | English |
| Additional information: | © 2023 The Authors. Published by Ernst & Sohn GmbH. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Seismic resilient, Experimental tests, Steel eccentrically braced frames, Damage-free, Self-centring, Seismic link |
| 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/10177361 |
Archive Staff Only
 |
View Item |
