Lettieri, A;
Latour, M;
Moderini, LK;
Freddi, F;
Rizzano, G;
(2022)
Design and Analysis of Damage-Free Self-centring Links for Seismic-Resilient Eccentrically Braced Frames.
In:
Proceedings of the 10th International Conference on Behaviour of Steel Structures in Seismic Areas. STESSA 2022.
(pp. pp. 755-762).
Springer: Cham, Switzerland.
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Lettirei et al_STESSA 2021 - Paper - Design and analysis of damage-free self-centring links for seismic-resilient eccentrically braced frames - Authors Version.pdf - Accepted Version Download (523kB) | Preview |
Abstract
Earthquake resilient steel frames, such as Self-Centring Moment Resisting Frames (SC-MRFs) or Concentrically Braced Frames (SC-CBFs), have been widely studied during the past few years while little attention has been paid to the development of self-centring solutions based on Eccentrically Braced Frames (EBFs). The present paper investigates a possible solution for damage-free self-centring EBFs relying on the use of a damage-free self-centring devices as seismic link. The device uses post-tensioned high-strength steel bars with disks springs to control the self-centring behaviour and friction devices to dissipate seismic energy. A four-storey EBF is designed according to the Eurocode 8 and the third storey of the structure is extracted to investigate the behaviour of a sub-assembly upgraded with the proposed seismic device. A 3D nonlinear finite element model of the device is developed in ABAQUS to evaluate the local behaviour. The results of the conventional and upgraded systems are compared, showing the effectiveness of the solution.
| Type: | Proceedings paper |
|---|---|
| Title: | Design and Analysis of Damage-Free Self-centring Links for Seismic-Resilient Eccentrically Braced Frames |
| Event: | 10th International Conference on Behaviour of Steel Structures in Seismic Areas |
| ISBN-13: | 9783031038105 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/978-3-031-03811-2_82 |
| Publisher version: | https://doi.org/10.1007/978-3-031-03811-2_82 |
| 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. |
| Keywords: | Steel Structures, Eccentrically Braced Frames, Damage-Free SelfCentring Links, Structural Resilience, Residual Drifts |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10150486 |
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