000021796 001__ 21796
000021796 005__ 20170622131305.0
000021796 04107 $$aeng
000021796 046__ $$k2017-06-15
000021796 100__ $$aSoroushian, Aram
000021796 24500 $$aON TIME HISTORY ANALYIS WITH STEPS LARGER THAN THE STEPS OF EARTHQUAKE RECORDS INDEPENDENT FROM THE FREQUENCY CONTENTS

000021796 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021796 260__ $$bNational Technical University of Athens, 2017
000021796 506__ $$arestricted
000021796 520__ $$2eng$$aTime integration is the most versatile tool in analysis of semi-discretized equations of motion. The computational cost might be considerable, especially when the excitation is available as a digitized record. Concentrating on analysis of structural systems against earthquakes, a technique is proposed in 2008 for reducing the analysis computational cost by summarizing the record of the ground motion. The main parameter to be set before implementation of the technique is the largest period of oscillations with considerable contribution in the response. Apparently, the definition of the parameter is vague, and besides we cannot easily estimate the parameter prior to the analysis. In this paper, the computational cost reduction technique is enhanced to a technique that can be simply implemented regardless of the above-mentioned parameter. The way of implementation is modified, such that the need to the parameter is eliminated without adding any new parameter or ambiguity. The basis of the enhancement is the error control comment traditionally recommended in the practice. As observed in numerical tests, by implementing the enhanced technique, besides further clarity, the time integration analyses can be more efficient compared to traditional analyses.

000021796 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021796 653__ $$aTime Integration, Digitized Excitation, Computational Cost, Accuracy, Errors Control, Response Frequency Content.

000021796 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021796 720__ $$aSoroushian, Aram
000021796 8560_ $$ffischerc@itam.cas.cz
000021796 8564_ $$s105324$$uhttps://invenio.itam.cas.cz/record/21796/files/17962.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS17] Computational issues in earthquake engineering
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000021796 962__ $$r21500
000021796 980__ $$aPAPER