000010377 001__ 10377
000010377 005__ 20141205155721.0
000010377 04107 $$aeng
000010377 046__ $$k2008-10-12
000010377 100__ $$aJalayer, F.
000010377 24500 $$aBayesian Updating of the Reliability of Existing RC Structures Based on the Inspection Results

000010377 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010377 260__ $$b
000010377 506__ $$arestricted
000010377 520__ $$2eng$$aThe seismic assessment of existing buildings is subject to uncertainties. These uncertainties can sometimes be comparable to that of the ground motion representation. Seismic codes such as the European code and the Italian Code seem to consider the overall effect of these uncertainties through confidence factors applied to nominal material strength. This work aims to classify and characterize these uncertainties and build a prior distribution of structural lateral load resistance capacity as a function of these uncertainties. The prior probability distribution model for the uncertain parameters is constructed based on the state of knowledge about the building before in situ inspections and tests are conducted. The uncertainties in the parameters are propagated to the structural resistance using an advanced simulation method known as subset simulation. Subset simulation allows for suitable grouping of parameters into groups in order to build a simplified model of correlation across different structural parameters. In the next step, the results of tests are used to update the probability distributions for parameters and to propagate the effects on to the structural resistance. The results of this study are aimed to make recommendations as to how confidence factors can be estimated taking into account all sources of uncertainty and be applied to the structural resistance. Finally, the effect of performing tests in increasing the level of knowledge about the structure are quantified in terms of a decrease in the confidence factor. As a case study, the two-dimensional finite element model of the central frame of an existing school built in the 1960’s in Avellino Italy has been used.

000010377 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010377 653__ $$aStructural reliability, modeling uncertainty, Bayesian updating, confidence factors, existing structures, Markov chain Monte Carlo simulation

000010377 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010377 720__ $$aJalayer, F.$$iIervolino, I.$$iManfredi, G.
000010377 8560_ $$ffischerc@itam.cas.cz
000010377 8564_ $$s99194$$uhttps://invenio.itam.cas.cz/record/10377/files/05-03-0207.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0207.
000010377 962__ $$r9324
000010377 980__ $$aPAPER