The purpose of this study is to present a force-based macroelement for the static and dynamic analysis of the in-plane response of masonry panels. The nonlinear behaviour of masonry is described by a constitutive model based on the Bouc-Wen hysteretic formulation modified with the introduction of damage and flexibility increase by means of two scalar variables that regulate the rate and type of degradation. Damage is considered as a reduction of the hysteretic force, while flexibility increase is modelled through an amplification of the elastic displacement, both depending on the dissipated energy. The aim is to give a more accurate representation of the strength and stiffness decay masonry walls undergo when subjected to cyclic loadings and to better represent the loading and unloading branches of the response curves. To investigate the effect of the degradation in the dynamic field, the behaviour a slender wall is analysed under harmonic excitations.

Modified Bouc-Wen model with damage and flexibility increase for the dynamic analysis of masonry walls / Paoloni, Alessandra; Liberatore, Domenico; Addessi, Daniela. - (2023). ((Intervento presentato al convegno Third International Nonlinear Dynamics Conference (NODYCON 2023) tenutosi a Rome; Italy.

Modified Bouc-Wen model with damage and flexibility increase for the dynamic analysis of masonry walls

Alessandra Paoloni
;
Domenico Liberatore;Daniela Addessi
2023

Abstract

The purpose of this study is to present a force-based macroelement for the static and dynamic analysis of the in-plane response of masonry panels. The nonlinear behaviour of masonry is described by a constitutive model based on the Bouc-Wen hysteretic formulation modified with the introduction of damage and flexibility increase by means of two scalar variables that regulate the rate and type of degradation. Damage is considered as a reduction of the hysteretic force, while flexibility increase is modelled through an amplification of the elastic displacement, both depending on the dissipated energy. The aim is to give a more accurate representation of the strength and stiffness decay masonry walls undergo when subjected to cyclic loadings and to better represent the loading and unloading branches of the response curves. To investigate the effect of the degradation in the dynamic field, the behaviour a slender wall is analysed under harmonic excitations.
2023
Third International Nonlinear Dynamics Conference (NODYCON 2023)
Bouc-Wen Constitutive Law; Degradation; Damage; Flexibility Increase; Force-based beam
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Modified Bouc-Wen model with damage and flexibility increase for the dynamic analysis of masonry walls / Paoloni, Alessandra; Liberatore, Domenico; Addessi, Daniela. - (2023). ((Intervento presentato al convegno Third International Nonlinear Dynamics Conference (NODYCON 2023) tenutosi a Rome; Italy.
File allegati a questo prodotto
File Dimensione Formato  
Paoloni_Modified Bouc-Wen model_2023.pdf

solo gestori archivio

Tipologia: Documento in Pre-print (manoscritto inviato all'editore, precedente alla peer review)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 888.62 kB
Formato Adobe PDF
888.62 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1666166
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact