A fast and reliable non-linear heterogeneous FE approach specifically conceived for the analysis of FRPreinforced masonry arches is presented. The approach proposed relies into the reduction of mortar joints to interfaces exhibiting a non-linear holonomic behavior, with a discretization of bricks by means of four-noded elastic elements. The FRP reinforcement is modeled by means of truss elements with elastic-brittle behavior, where the peak tensile strength is estimated by means of a consolidated approach provided by the Italian guidelines CNR-DT200 on masonry strengthening with fiber materials, where the delamination of the strip from the support is taken into account. The model is validated against some recent experimental results relying into circular masonry arches reinforced at both the intrados and the extrados. Some sensitivity analyses are conducted varying the peak tensile strength of the trusses representing the FRP reinforcement.

Non-linear heterogeneous FE approach for FRP strengthened masonry arches

BERTOLESI, ELISA;MILANI, GABRIELE;FEDELE, ROBERTO
2015-01-01

Abstract

A fast and reliable non-linear heterogeneous FE approach specifically conceived for the analysis of FRPreinforced masonry arches is presented. The approach proposed relies into the reduction of mortar joints to interfaces exhibiting a non-linear holonomic behavior, with a discretization of bricks by means of four-noded elastic elements. The FRP reinforcement is modeled by means of truss elements with elastic-brittle behavior, where the peak tensile strength is estimated by means of a consolidated approach provided by the Italian guidelines CNR-DT200 on masonry strengthening with fiber materials, where the delamination of the strip from the support is taken into account. The model is validated against some recent experimental results relying into circular masonry arches reinforced at both the intrados and the extrados. Some sensitivity analyses are conducted varying the peak tensile strength of the trusses representing the FRP reinforcement.
2015
11th International Conference of Computational Methods in Sciences and Engineering, ICCMSE 2015
978-0-7354-1349-8
Fiber Reinforced Polymer FRP, masonry arches, FE numerical model, Heterogeneous approach, Masonry strengthening, interface elements.
File in questo prodotto:
File Dimensione Formato  
2015_ICCMSE_Ber_Mil_Fed.pdf

Accesso riservato

Descrizione: 2015_ICCMSE_Ber_Mil_Fed
: Publisher’s version
Dimensione 551.68 kB
Formato Adobe PDF
551.68 kB Adobe PDF   Visualizza/Apri

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/11311/971868
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact