000022293 001__ 22293
000022293 005__ 20170622150006.0
000022293 04107 $$aeng
000022293 046__ $$k2015-05-25
000022293 100__ $$aBrozovič, Marko
000022293 24500 $$aRISK-BASED DESIGN CHECK FOR COLLAPSE SAFETY USING FEW GROUND MOTIONS

000022293 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022293 260__ $$bNational Technical University of Athens, 2015
000022293 506__ $$arestricted
000022293 520__ $$2eng$$aThe 3R method (Response analysis, Record selection, Risk-based decision making), which is used to check the adequacy of structural collapse safety by few nonlinear dynamic analyses, is briefly presented. The 3R method uses characteristic ground motions, which are selected by two-step selection procedure. Hazard-consistent set of ground motions is selected in the first step, while in the second step a subset of a few ground motions is obtained on the basis of the seismic response analysis of equivalent single-degree-of-freedom model, which is not computationally demanding. All ground motions are scaled to single intensity level, which corresponds to target collapse risk. The objective of the method is not precise assessment of collapse risk, but decision making whether the collapse risk is lower or greater in comparison to the target collapse risk. For this reason simple decision model may be introduced. If collapse is observed for less than half of characteristic ground motions, it can be decided that the reliability of structure against collapse is appropriate and vice versa. For an example of reinforced concrete dual structural system it is shown that an intensity-based assessment can provide sufficiently accurate risk-based decision making.

000022293 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022293 653__ $$aSeismic collapse risk, ground motion selection, characteristic ground motions, nonlinear dynamic analysis, dual structural system, 3R method.

000022293 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022293 720__ $$aBrozovič, Marko$$iDolšek, Matjaž
000022293 8560_ $$ffischerc@itam.cas.cz
000022293 8564_ $$s651604$$uhttps://invenio.itam.cas.cz/record/22293/files/C3129.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022293 962__ $$r22030
000022293 980__ $$aPAPER