Numerical Investigation of the Influence of Constructive Aspects on the Structural Behaviour of Masonry Cross Vaults

Alforno, Marco; Venuti, Fiammetta; Monaco, Alessia; Calderini, Chiara

doi:10.1080/15583058.2021.1992534

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…The local collapses of the diagonal vault can be explained by the stabilizing role of the boundary arches. Actually, it has been demonstrated (Alforno et al 2021b) that the vault with the diagonal pattern thrusts along the head arches, and its stability (under self-weight) is not possible without lateral confinement. Therefore, when the head arches detach from the webs due to the imposed horizontal acceleration, the vault undergoes a local collapse.…”

Section: Effects Of Brick Patternmentioning

confidence: 99%

“…Conversely, FEM models generally assume elastic and cracked behaviour of masonry by means of several approaches such as macro-or micro-modelling and isotropic or anisotropic constitutive laws (Gaetani et al 2017(Gaetani et al , 2021Milani et al 2016Milani et al , 2017Milani et al , 2019. In this frame, the present work is focused on the modelling of cross vaults of ideal geometry through the simplified micro-modelling approach in the framework of FEM (Alforno et al 2020(Alforno et al , 2021a(Alforno et al , 2021b. This modelling approach has already been used by the authors and successfully validated with physical in-scale models (Alforno et al 2021a).…”

Section: Introductionmentioning

confidence: 99%

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Seismic behaviour of cross vaults with different brick pattern

Alforno

Venuti

Monaco

et al. 2022

Bull Earthquake Eng

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Cross masonry vaults are common structural elements in historical buildings. They are largely diffused in all European countries, including those characterized by higher levels of seismicity. Although they have been constructed for centuries, they represent some of the most vulnerable elements of traditional architecture, especially with reference to horizontal loads. The understanding of their structural behaviour under seismic loading is a crucial aspect for the accurate assessment of the safety of historical buildings. In the present work, the seismic response of cross masonry vaults is analysed through the Finite Element Method (FEM) and static non-linear analyses considering the effect of different brick patterns and boundary conditions. A simplified micro-modelling approach is adopted for the generation of the FEM models and two different brick arrangements are considered, i.e., radial bricks and diagonal bricks, which are the most widespread in European cross vaults. Two different boundary conditions are assumed in order to simulate a vault with and without lateral confinement. Static non-linear analyses are performed by monotonically incrementing a lateral acceleration until collapse. Results are analysed in terms of maximum load factor, stiffness, ductility, crack pattern and damage mechanisms. The analysis of the results shows that not only boundary conditions, but also the brick pattern strongly influences the vault seismic response both in terms of stiffness and ductility as well as in terms of global capacity.

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Section: Effects Of Brick Patternmentioning

confidence: 99%