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The effect of skew angle on the mechanical behaviour of masonry arches

Sarhosis, Vasilis, Oliveira, D. V., Lemos, J. V. and Lourenco, P. B. 2014. The effect of skew angle on the mechanical behaviour of masonry arches. Mechanics Research Communications 61 , pp. 53-59. 10.1016/j.mechrescom.2014.07.008

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Abstract

This paper presents the development of a three dimensional computational model, based on the Discrete Element Method (DEM), which was used to investigate the effect of the angle of skew on the load carrying capacity of twenty-eight different in geometry single span stone masonry arches. Each stone of the arch was represented as a distinct block. Mortar joints were modelled as zero thickness interfaces which can open and close depending on the magnitude and direction of the stresses applied to them. The variables investigated were the arch span, the span: rise ratio and the skew angle. At each arch, a full width vertical line load was applied incrementally to the extrados at quarter span until collapse. At each load increment, the crack development and vertical deflection profile was recorded. The results compared with similar “square” (or regular) arches. From the results analysis, it was found that an increase in the angle of skew will increase the twisting behaviour of the arch and will eventually cause failure to occur at a lower load. Also, the effect of the angle of skew on the ultimate load that the masonry arch can carry is more significant for segmental arches than circular one.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: Elsevier
ISSN: 0093-6413
Last Modified: 21 Feb 2019 11:55
URI: https://orca.cardiff.ac.uk/id/eprint/63217

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