eprintid: 10195509
rev_number: 8
eprint_status: archive
userid: 699
dir: disk0/10/19/55/09
datestamp: 2024-08-07 12:05:26
lastmod: 2024-10-08 06:10:08
status_changed: 2024-08-07 12:05:26
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Di Benedetto, Sabatino
creators_name: Ortiz Pastorino, Camila
creators_name: Farahi, Mojtaba
creators_name: Latour, Massimo
creators_name: Freddi, Fabio
title: Self-centering friction-based devices for hybrid coupled walls: a preliminary finite element study
ispublished: pub
divisions: UCL
divisions: B04
divisions: F44
note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The development of seismic-resilient structural solutions to protect human lives and ensure immediate functionality after severe seismic events is an inevitable challenge in modern earthquake engineering. Innovative structural systems with minimum earthquake-induced damage and residual deformations allow fast recovery of structures and can be considered effective strategies towards seismic resilient constructions. In this context, this study focuses on the performance of a self-centering solution that can be implemented within coupling beams to form Self-Centering Hybrid Coupled Walls (SC-HCW). The seismic-resisting system selected in this study consists of a Reinforced Concrete (RC) shear wall connected to two steel side columns through steel coupling beams equipped with friction-damped self-centering (FDSC) devices. The FDSC devices integrate an energy dissipation component achieved through a friction-slip mechanism and Post-Tensioned (PT) bars, providing the self-centering capability to the device. Recent studies have shown that adopting this type of SC-HCW allows achieving high energy dissipation capacity with negligible residual drifts. The present study performs a detailed numerical investigation focusing on the local response of FDSC devices to shed light on their optimal design. Different configurations of FDSC devices are considered, and their performance in terms of energy dissipation and self-centering capacity is evaluated through Finite Element (FE) simulations under monotonic and cyclic loading. The obtained results are referred to validate the efficiency of analytical formulations used to design the intended FDSC devices. The results are also used to investigate how the overall performance of FDSC devices is affected by their geometry.
date: 2024-07-05
date_type: published
publisher: World Conference on Earthquake Engineering (WCEE)
official_url: https://www.wcee2024.it/
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2303094
lyricists_name: Freddi, Fabio
lyricists_id: FFRED33
actors_name: Freddi, Fabio
actors_id: FFRED33
actors_role: owner
full_text_status: public
pres_type: paper
place_of_pub: Milan, Italy
event_title: 18th World Conference on Earthquake Engineering (WCEE2024)
event_dates: 30 Jun 2024 - 5 Jul 2024
book_title: Proceedings of the  18th World Conference on Earthquake Engineering (WCEE2024)
citation:        Di Benedetto, Sabatino;    Ortiz Pastorino, Camila;    Farahi, Mojtaba;    Latour, Massimo;    Freddi, Fabio;      (2024)    Self-centering friction-based devices for hybrid coupled walls: a preliminary finite element study.                     In:  Proceedings of the 18th World Conference on Earthquake Engineering (WCEE2024).    World Conference on Earthquake Engineering (WCEE): Milan, Italy.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10195509/1/Di%20Benedetto%20et%20al%20-%20WCEE2024%20-%20SC%20FD%20for%20HCWs.pdf