000021826 001__ 21826
000021826 005__ 20170622131306.0
000021826 04107 $$aeng
000021826 046__ $$k2017-06-15
000021826 100__ $$aMadda, Mohammad M.
000021826 24500 $$aA NEW METHOD TO SEISMIC COLLAPSE ASSESSMENT OF MID-RISE STEEL FRAME BUILDINGS

000021826 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021826 260__ $$bNational Technical University of Athens, 2017
000021826 506__ $$arestricted
000021826 520__ $$2eng$$aCollapse of Buildings due to the earthquakes causes a great number of casualties, financial losses and makes accessing locations difficult for the rescue teams. So, the collapse assessment of existing buildings under severe earthquakes is significant. The most accurate approach of collapse assessment is nonlinear dynamic analysis of a detailed structural model with hundreds of degrees of freedom. But analysis of the detailed model requires a lot of computational efforts that making the process prone to error and thus complicating the interpretation of results. Hence an alternative approach is using an equivalent MDOF model that is capable to predict major structural demands. In this paper, to evaluate the collapse capacity an equivalent nonlinear MDOF system is proposed. This model, consisting of a column with concentrated plastic hinges at two ends and a series of rotational springs that represent bending behavior of beams in each floor. Lignos and Krawinkler empirical relationships are used to determinate the cyclic moment-rotation relationships of the plastic hinges and rotational springs. The incremental dynamic analysis (IDA) is utilized to structural analysis and collapse capacity evaluation. Accuracy of the proposed method is estimated in comparison with detailed model of a 4 story moment resisting frame. The results indicate that the proposed method has appropriate ability to calculate the collapse capacity with a proper speed, accuracy and cost.

000021826 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021826 653__ $$aCollapse Capacity, Mid-rise Steel Frame Buildings, Equivalent Model

000021826 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021826 720__ $$aMadda, Mohammad M.$$iEshghi, Sassan
000021826 8560_ $$ffischerc@itam.cas.cz
000021826 8564_ $$s581616$$uhttps://invenio.itam.cas.cz/record/21826/files/18086.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000021826 962__ $$r21500
000021826 980__ $$aPAPER