RESEARCH ARTICLE


An Enhanced Beam Model for the Analysis of Masonry Walls



Massimiliano Lucchesi, Barbara Pintucchi*, Nicola Zani
Department of Civil and Environmental Engineering (DICeA), University of Florence, Piazza Brunelleschi 6, 50121 Florence, Italy


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 612
Abstract HTML Views: 568
PDF Downloads: 229
ePub Downloads: 171
Total Views/Downloads: 1580
Unique Statistics:

Full-Text HTML Views: 394
Abstract HTML Views: 318
PDF Downloads: 162
ePub Downloads: 111
Total Views/Downloads: 985



© 2019 Lucchesi et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil and Environmental Engineering (DICeA), University of Florence, Piazza Brunelleschi 6, 50121 Florence, Italy; Tel: +390552756850; E-mail: barbara.pintucchi@unifi.it


Abstract

Background:

Some typologies of masonry constructions (e.g. towers or walls with openings) can be reasonably studied through simple beam or frame-like models. For these structures, shear mechanisms often play an important role inducing failure and collapse.

Objective:

The paper presents an enriched beam model for studying the in-plane response of masonry walls. Initially formulated for masonry columns, towers and masonry slender structures in general, the model is now modified in order to also capture the shear failure mechanisms, in addition to the flexural ones.

Methods:

Starting with a one-dimensional no-tension model, a strength domain in the plane of the axial and tangential stress of the beam has been added, which has been defined by limiting both the stress shear component with respect to any possible direction and the main compressive stress.

Results:

The model, implemented in the FEM computational code MADY, allows for short computational times in studying the response of single panels as well as walls with openings.

Conclusion:

Comparisons with some experimental results from literature and some numerical results from more refined 2D models show the effectiveness and accuracy of the model’s predictions in terms of global and local response.

Keywords: Masonry, Panels, Nonlinear, Finite elements, Beam model, Equivalent frame, In-plane behaviour.