000004808 001__ 4808
000004808 005__ 20141119144555.0
000004808 04107 $$aeng
000004808 046__ $$k2002-06-02
000004808 100__ $$aTantala, Michael W.
000004808 24500 $$aDEVELOPMENT OF SEISMIC FRAGILITY CURVES FOR TALL BUILDINGS

000004808 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004808 260__ $$bColumbia University in the City of New York
000004808 506__ $$arestricted
000004808 520__ $$2eng$$aThis study focuses on the reliability assessment of tall buildings subjected to earthquake loadings. The vulnerabilities of these tall structures are expressed with the development of fragility curves, which provide the probability of exceeding a prescribed level of damage for a wide range of ground motion intensities. Such fragility curves are extremely important for estimating the overall risk to the civil infrastructure from potential earthquakes. The methodology to develop these curves follows a Monte Carlo simulation approach incorporating uncertainties in the ground motion and in the structural characteristics. Uncertainty of ground motion is introduced by modeling it as a stochastic process. This is accomplished by simulating power spectrum compatible stochastic processes with a prescribed duration and marginal probability distribution function. This study evaluates the effect of the assumption of Gaussianty and the role of duration of strong ground motion. Deviations from Gaussianity can have significant detrimental effects on the structural response, particularly on maximum values. Duration can also have a significant effect on the response, as a nonlinear model involving stiffness degradation is used. Both effects are studied. Uncertainty of structural characteristics is introduced by modeling different material properties as random variables at critical locations of the structure. The developed fragility curves can be very useful for emergency management agencies and insurance companies wishing to estimate the overall loss after a scenario earthquake.

000004808 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004808 653__ $$aTall Buildings, Seismic Fragility Curves, Non-Gaussian Stochastic Processes, Strong Ground Motion Duration, Monte Carlo Simulation.

000004808 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004808 720__ $$aTantala, Michael W.$$iDeodatis, George
000004808 8560_ $$ffischerc@itam.cas.cz
000004808 8564_ $$s1514238$$uhttp://invenio.itam.cas.cz/record/4808/files/366.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004808 962__ $$r4594
000004808 980__ $$aPAPER