- The behavior of single span stone masonry skew arches.
- V. Sarhosis ; D.V. Oliveira ; J. Lemos ; Y. Sheng ; P.B. Lourenço
- Book Title / Journal: ARCH’13 – 7th International Conference on Arch Bridges, Split, Croatia,
- Year: 2013 , Volume: , Series:
- Structure types ; Masonry Structures
- Description
- The work reported in this paper summarises the development and results
obtained from a 3D computational model, using the distinct element software 3DEC, that
was used to investigate the effect of the angle of skew on the load carrying capacity of
sixteen different single span stone masonry arches. The variables investigated in the
research were the arch span, the span : rise ratio and the skew angle. In order to gain an
understanding of the behaviour of the arches, no attempts were made to model the effects of
fill, spandrel walls or any other construction details. For each model, a full width vertical
line load was applied incrementally to the extrados at quarter span until collapse. At each
load increment the predicted crack development and vertical deflection profile was
recorded. The results are compared with similar “square” (or regular) arches in order to
identify the influence of skew on the behaviour of the arches.
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- Computational modelling of clay brickwork walls containing openings.
- V. Sarhosis ; Y. Sheng ; S.W. Garrity
- Book Title / Journal: 8th International Masonry Conference 2010 in Dresden, International Masonry Society Proceedings,
- Year: 2010 , Volume: 3, , Series:
- Structure types ; Masonry Structures
- Description
- This paper describes the development of a computational model for masonry that will be used to
study different strengthening systems for single leaf brick wall panels containing openings. As many
of the brickwork walls in need of strengthening were constructed of low strength materials or they
have deteriorated with time, cracking tends to be along the brick/mortar interfaces and failure usually
results from de-bonding of the bricks. As a result the authors decided to use a computational model
based on the Distinct Element Method which was developed by Cundall [1] in 1971. The method was
developed for commercial use by Cundall and Itasca Limited [2] for 2-dimensional structures in the
form of the software UDEC (Universal Distinct Elements Code). Initially DEM was applied to rock
engineering projects where continuity between the separate blocks of rock did not exist. More recently
it has been used to model masonry structures [3, 4 and 5] in which the failure mechanism is governed
primarily by the masonry unit/mortar interface characteristics.
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