000021689 001__ 21689
000021689 005__ 20170622131300.0
000021689 04107 $$aeng
000021689 046__ $$k2017-06-15
000021689 100__ $$aSerra, Joao
000021689 24500 $$aDYNAMIC ANALYSIS OF BRIDGE GIRDERS UNDER MOVING LOADS CONSIDERING WARPING EFFECTS: NUMERICAL AND ANALYTICAL BEAM MODELS

000021689 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021689 260__ $$bNational Technical University of Athens, 2017
000021689 506__ $$arestricted
000021689 520__ $$2eng$$aIn order to perform efficient dynamic analyses of continuous high-speed railway bridges, a numerical and an analytical beam models are proposed in the present work. The behaviour of the bridge girder is described by a three-dimensional Euler-Bernoulli beam element, where an additional degree-of-freedom is considered at each beam-end, representing the cross-sectional warping. The structural response is determined by considering a modal analysis along with a direct integration scheme. The natural frequencies and vibration mode shapes are determined by the developed models. The trains are modeled as series of moving masses acting eccentrically at constant speed, allowing the corresponding inertial effects to be considered besides the gravitational force of mass.

000021689 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021689 653__ $$aVibrations, Dynamic Analysis, Thin-Walled Beams, Torsion, Warping, Bridges, High-Speed Railways, Moving Masses.

000021689 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021689 720__ $$aSerra, Joao$$iVirtuoso, Francisco$$iVieira, Ricardo
000021689 8560_ $$ffischerc@itam.cas.cz
000021689 8564_ $$s963705$$uhttps://invenio.itam.cas.cz/record/21689/files/17518.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS05] Dynamics of coupled problems
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000021689 962__ $$r21500
000021689 980__ $$aPAPER