eprintid: 10195510
rev_number: 8
eprint_status: archive
userid: 699
dir: disk0/10/19/55/10
datestamp: 2024-08-07 11:57:32
lastmod: 2024-10-08 06:10:09
status_changed: 2024-08-07 11:57:32
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Elettore, Elena
creators_name: Freddi, Fabio
creators_name: Latour, Massimo
creators_name: Piluso, Vincenzo
creators_name: Rizzano, Gianvittorio
title: Experimental and numerical reparability assessment of a two-storey steel structure equipped with innovative column bases
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: In the last few decades, increasing research efforts have been devoted to the definition of innovative seismic resilient technologies and design strategies with the aim of reducing both direct and indirect losses and hence minimising the impact of such extreme events on the society. In this context, the use of Friction Devices (FDs) within the Beam-to-Column joints (BCJs) of steel Moment Resisting Frames (MRFs) has emerged as an effective solution to limit the local damage simultaneously benefitting from their energy dissipation capacity. Additionally, more recent studies have revealed the benefits of using Self-Centring Column Bases (SC-CBs) for the residual drift reduction of steel MRFs. These and other research studies in this field aimed at the definition of structural solutions that could be easily repaired after an extreme event, hence promoting functional recovery. However, experimental research on suitable structural repair techniques is still marginal and the lack of confidence in the performance of repaired structures are relevant issues contributing to the high demolition rates. The present paper illustrates the results of an experimental campaign conducted on a large-scale steel structure equipped with BCJs with FDs and SC-CBs. Several pseudodynamic tests were performed and, at the end of each test, the structure was repaired by loosening and retightening the bolts of the FDs to investigate the residual drift reduction during repair and successively evaluate the effectiveness of the repair operations. Furthermore, an advanced numerical model was developed in OPENSEES and then validated against experimental results. The results demonstrated the effectiveness of the repairing method as well as the ability of the numerical model in simulating the repairing process.
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: 2303096
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_location: Milan
event_dates: 30 Jun 2024 - 5 Jul 2024
book_title: Proceedings of the 18th World Conference on Earthquake Engineering (WCEE 2024)
citation:        Elettore, Elena;    Freddi, Fabio;    Latour, Massimo;    Piluso, Vincenzo;    Rizzano, Gianvittorio;      (2024)    Experimental and numerical reparability assessment of a two-storey steel structure equipped with innovative column bases.                     In:  Proceedings of the 18th World Conference on Earthquake Engineering (WCEE 2024).    World Conference on Earthquake Engineering (WCEE): Milan, Italy.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10195510/1/Elettore%20et%20al%20-%20WCEE%202024%20-%20PsD%20Test%20-%20CBs%20-%20Repairability.pdf