000013531 001__ 13531
000013531 005__ 20161114165754.0
000013531 04107 $$aeng
000013531 046__ $$k2011-05-25
000013531 100__ $$aSoroushian, A.
000013531 24500 $$aOn the Performance of a Technique for More Efficient Time Integration When Applied to Bridge Structures Seismic Analysis

000013531 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013531 260__ $$bNational Technical University of Athens, 2011
000013531 506__ $$arestricted
000013531 520__ $$2eng$$aThe true behavior of structural systems is dynamic, that in many cases can not be simplified to static. The most versatile tool for structural dynamic analyses, is time integration, and, hence, under special attention in the seismic analyses of structural systems, becoming more complicated everyday. Nevertheless, the responses of time integration are inexact and generally being obtained after considerable computational cost. Considering these, besides the digitized nature of ground strong motion records, a technique for considerably reducing the computational cost with small loss of accuracy is recently proposed. With attention to the notion of convergence and its role in numerical analyses, the technique replaces seismic records, with records, digitized at larger steps. The good performance of the technique is displayed in implementation in simple and complicated structural systems analyses. In continuation of the studies, the objective, in this paper, is to examine whether we can successfully implement the technique in time integration of bridges structural systems. The technique is briefly reviewed, and after introdcung a bridge structural system, designed according to the Iranian practice, the finite element model of the system is time integrated, once ordinarily, and then again, after implementing the technique. The numerical results evidence the good performance of the technique, and the essentiality of further inverstigations.

000013531 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013531 653__ $$aSeismic analysis, Bridge, Time integration, Accuracy, Computational cost; Convergence.

000013531 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013531 720__ $$aSoroushian, A.$$iHosseini, M.$$iVasseghi, A.
000013531 8560_ $$ffischerc@itam.cas.cz
000013531 8564_ $$s231321$$uhttp://invenio.itam.cas.cz/record/13531/files/244.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 01 Accuracy and Computational Efficiency in Seismic Structural Analysis.
000013531 962__ $$r13401
000013531 980__ $$aPAPER