COMPUTATIONAL MODELLING OF MASONRY, BRICKWORK AND BLOCKWORK STRUCTURES
Edited by: J.W. Bull
Chapter 9
Numerical Analysis of Old Masonry Buildings
F. Genna and P. Ronca
Department of Civil Engineering, University of Brescia, Italy
We illustrate some of the alternatives existing,
and difficulties to be expected
when studying the behaviour of old masonry buildings numerically, especially in the
non-linear range. Even if, nowadays,
several quite sophisticated, continuum, discrete or interface constitutive
models for masonry/mortar/dry blocks exist, the difficulty of properly applying them
to real situations suggests the use of simpler approaches, such as elasticity or elastoplasticity as a
starting point.
Even in these simplified contexts, however, the analysis of old masonry
poses several problems, some of which
are illustrated by means of application examples,
first with reference to the analysis
of masonry walls, then with reference to the analysis of arches
and vaults. The importance of properly taking
into account the effects of design and construction details
on the overall behaviour is stressed, as well as that of
complementing the numerical results with analytical, simplified
estimates of the structure behaviour, such as those given by the
methods of the thrust line or limit analysis, when applicable.
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