Author： Casapulla C. Portioli F. Maione A. Landolfo R.
Publisher： Springer Publishing Company
ISSN： 0025-6455
Source： Meccanica, Vol.48, Iss.9, 2013-11, pp. : 2107-2126
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Abstract
This paper presents a macro-block model and a simplified procedure for the prediction of the collapse load and the failure mechanism of in-plane loaded masonry walls, with non-associative frictional contact interfaces. The macro-block modeling is based on the assumption that the failure involves a single crack where all the possible relative motions among micro-blocks are concentrated. Two limiting conditions for the ultimate load factor are kinematically computed in closed form, by use of minimization routines of limit analysis.The results are compared against micro-block modeling and other macro-block models through a few illustrative examples and a parametric analysis. The influence of the main mechanical and geometrical parameters, such as unit aspect, scale effect, overload and friction is also shown.
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