000022328 001__ 22328
000022328 005__ 20170622150008.0
000022328 04107 $$aeng
000022328 046__ $$k2015-05-25
000022328 100__ $$aBisadi, Mehrdad
000022328 24500 $$aEVALUATION OF THE DYNAMIC AMPLIFICATION FACTOR FOR RAILWAY BRIDGES SUBJECTED TO A SERIES OF MOVING MASS

000022328 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022328 260__ $$bNational Technical University of Athens, 2015
000022328 506__ $$arestricted
000022328 520__ $$2eng$$aThis paper investigates the vertical dynamic behavior of steel rail viaducts subjected to train passage. The analyses in this study take into account the dynamics of the vehicle suspension systems, the mass of bogies and car bodies, and the dynamic properties of the viaduct as emulated by idealized mass and stiffness values. The rail vehicles are simulated as a series of moving mass with various wheel distances traversing over simply supported girders. Using finite element software, LUSAS, the dynamic amplification factors are evaluated and the results are compared with standard design practice for a wide range of speeds and a range of viaduct spans. The results show that the impact factors proposed by design codes are unconservative in many cases especially for high speed trains traversing the short span viaducts.

000022328 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022328 653__ $$aRailway Bridge, Finite Element, Dynamic Amplification Factor, Moving Mass Analysis.

000022328 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022328 720__ $$aBisadi, Mehrdad$$iBeskhyroun, Sherif$$iMa, Quincy Tsun Ming
000022328 8560_ $$ffischerc@itam.cas.cz
000022328 8564_ $$s640062$$uhttps://invenio.itam.cas.cz/record/22328/files/C488.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022328 962__ $$r22030
000022328 980__ $$aPAPER