In-Plane Behaviour of Masonry Walls: Numerical Analysis and Design Formulations

Author:

Celano ThomasORCID,Argiento Luca UmbertoORCID,Ceroni FrancescaORCID,Casapulla ClaudiaORCID

Abstract

This paper presents the results of several numerical analyses aimed at investigating the in-plane resistance of masonry walls by means of two modelling approaches: a finite element model (FEM) and a discrete macro-element model (DMEM). Non-linear analyses are developed, in both cases, by changing the mechanical properties of masonry (compressive and tensile strengths, fracture energy in compression and tension, shear strength) and the value of the vertical compression stress applied on the walls. The reliability of both numerical models is firstly checked by means of comparisons with experimental tests available in the literature. The analyses show that the numerical results provided by the two modelling approaches are in good agreement, in terms of both failure loads and modes, while some differences are observed in their load-displacement curves, especially in the non-linear field. Finally, the numerical in-plane resistances are compared with the theoretical formulations provided by the Italian building code for both flexural and shear failure modes and an amendment for the shape factor ‘b’ introduced in the code formulation for squat walls is proposed.

Funder

Ministero dell’Istruzione, dell’Università e della Ricerca

Publisher

MDPI AG

Subject

General Materials Science

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