An efficient Bouc & Wen approach for seismic analysisof masonry tower
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 29
Abstract
The assessment of existing masonry towers under exceptional loads, such as earthquake loads,requires reliable, expedite and efficient methods of analysis. These approaches should take into account boththe randomness that affects the masonry properties (in some cases also the distribution of the elasticparameters) and, of course, the nonlinear behavior of masonry. Considering the need of simplified but effectivemethods to assess the seismic response of such structures, the paper proposes an efficient approach for seismicassessment of masonry towers assuming the material properties as a stochastic field. As a prototype of masonrytowers a cantilever beam is analyzed assuming that the first modal shape governs the structural motion. Withthis hypothesis a nonlinear hysteretic Bouc & Wen model is employed to reproduce the system response whichis subsequently employed to evaluate the response bounds. The results of the simplified approach are comparedwith the results of a finite element model to show the effectiveness of the method.
Authors and Affiliations
Luca Facchini, Michele Betti
Keywords
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- EP ID EP157816
- DOI 10.3221/IGF-ESIS.29.13
- Views 62
- Downloads 0
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