The URM buildings designed to be conforming with the Italian building code, as illustrated in the companion paper by Manzini et al. (2018), were analyzed by performing time-history analyses on models realized using an equivalent frame approach and by adopting two different constitutive laws. Both the effect of record-to-record variability and of epistemic and aleatory uncertainties in modelling were explored. The achieved results constitute the basis for the evaluation of the risk level implicit in Italian code-conforming buildings (Iervolino et al. 2018). Two main performance conditions are considered, namely usability-preventing damage and global collapse limit states.
Various architectural configurations of URM residential buildings are designed according to the different methods the Italian code: rules for the so-called simple masonry buildings, linear and nonlinear static analyses. Always complying with code requirements, for each building-site combination the design was made, as much as possible, without an excessive margin of safety. The different design methods provided buildings with very different levels of safety, being linear static analysis largely overconservative with respect to the nonlinear static approach. These buildings were then analyzed in the companion paper by Cattari et al. (2018).
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