000018954 001__ 18954
000018954 005__ 20170118182249.0
000018954 04107 $$aeng
000018954 046__ $$k2017-01-09
000018954 100__ $$aCattari, Serena
000018954 24500 $$aLoss Assessment of Unreinforced Masonry Buildings

000018954 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018954 260__ $$b
000018954 506__ $$arestricted
000018954 520__ $$2eng$$aSeismic risk is defined as the potential of negative consequences of hazardous events that may occur in a specific area unit and period of time. In particular, the outcome of a seismic risk analysis is the mean annual rate of specific consequences, for example economic loss, which is obtained by the probabilistic convolution of the three components: hazard, vulnerability and exposure. These types of analyses are increasingly directed to the evaluation of the socioeconomic consequences of the earthquake, which represent a critical aspect that requires more research than others components of risk, since in the past most of attention has been addressed to the hazard and vulnerability. For this reason, the paper provides a contribution for the assessment of economic losses in masonry buildings, that implies the definition of a methodology on how to pass from structural seismic response to a response in terms of losses, following a component-based approach from which the direct loss is calculated by summing the losses over all damageable components in the building (structural, non structural and contents). The losses can be defined according to different approaches: passing directly from the intensity measure to repair cost or passing through firstly, the fragility curves, that relates the intensity measure and the engineering demand parameter, and, secondly, the engineering demand parameter and loss functions to estimate the repair costs. The first derives from the definition of a cost function that takes into account the progressing of damage in each structural element and the possible consequence on the reparability of related parts in the building. The procedure proposed is applicable for the detailed assessment of a specific building. The different inherent uncertainties, both aleatory and epistemic, which are involved in the seismic risk assessment (hazard, seismic demand, structural capacity and loss evaluation) are considered in the procedure. It is applied to a three-story unreinforced masonry case study analyzed with two configurations of constructive details aimed to simulate and compare two different in-plane collapse mechanisms that can generate a different losses assessment. These buildings are modeled by the equivalent frame approach (piers and spandrel beams) and analyzed by nonlinear static (pushover) and dynamic analysis following the Multiple Stripe Analysis.

000018954 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018954 653__ $$aSeismic risk, Loss evaluation, Unreinforced masonry building

000018954 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018954 720__ $$aCattari, Serena$$iLagomarsino, Sergio$$iOttonelli, Daria
000018954 8560_ $$ffischerc@itam.cas.cz
000018954 8564_ $$s478101$$uhttps://invenio.itam.cas.cz/record/18954/files/2561.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2561.
000018954 962__ $$r16048
000018954 980__ $$aPAPER