Calibration and application of a continuum damage model on the simulation of stone masonry structures: Gondar church as a case study |
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| Authors: | Bruno Silva Jo?o M Guedes António Arêde Aníbal Costa |
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| Institution: | (1) Department of Civil Engineering and Architecture/ICIST Lisbon, Instituto Superior T?cnico, Lisbon, Portugal;(2) Department of Civil Engineering Aveiro, Universidade de Aveiro, Aveiro, Portugal |
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| Abstract: | The conservation and rehabilitation of monuments is a matter of important investigation, and the need for accurate structural
analysis, capable of effectively predicting the structural behaviour of this type of constructions, under static and dynamic
loads, is increasing. Currently there are numerous computational methods and tools, supported by different theories and strategies
with different levels of complexity, computation time and cost which are available to perform such analyses. A complex analysis
is not always synonym of a better result and the choice of a method over another depends mostly on the purpose of the analysis.
This work aims at evaluating the capacity of a non linear continuum damage model (Faria et al. in Int J Solids Struct 35(14):1533–1558,
1998), originally developed for concrete structures, to simulate the behaviour of stone masonry structures. In particular, the
seismic response of an old stone masonry construction, the Gondar church, is analysed considering different levels of geometrical
and material complexity. The verification and calibration procedures use the experimental results from tests performed on
stone masonry walls at the Laboratory for Earthquake and Structural Engineering of the Faculty of Engineering of Porto University
and from other tests found in the bibliography (Vasconcelos in Experimental investigations on the mechanics of stone masonry:
Characterization of granites and behaviour of ancient masonry shear walls. PhD Thesis, Universidade do Minho, Guimar?es, Portugal,
2005). The results are compared, assessing the differences and the importance of using complex tools, such as the continuum damage
model, to better simulate and understand the global behaviour of such constructions. |
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