000021738 001__ 21738
000021738 005__ 20170622131302.0
000021738 04107 $$aeng
000021738 046__ $$k2017-06-15
000021738 100__ $$aKaewunruen, Sakdirat
000021738 24500 $$aNONLINEAR MODELLING AND ANALYSIS OF MOVING TRAIN LOADS ON INTERSPERSED RAILWAY TRACKS

000021738 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021738 260__ $$bNational Technical University of Athens, 2017
000021738 506__ $$arestricted
000021738 520__ $$2eng$$aThe interspersed pattern sleeper of railway track, which is a replacement of old timber sleeper with concrete, is often used as a temporary maintenance for second or third class railway lines with aging timber sleepers. However, their negative effect on the railway has to be taken into an account. The numerical simulations of interspersed sleeper railway tracks are conducted as well as the plain ones using a finite element program, STRAND7, so that the precise numerical models can be established. Two moving point loads, 100 kN each, are simulated to represent a passenger train bogie moving along each rail in 2 dimensional plane. Dynamic displacements and accelerations of all sleepers are then evaluated. Sensitivity analyses are carried out by varying the speed of the moving train loads from 5 km/h to 120 km/h and by changing the type of the interspersed patterns to determine the dynamic behaviours that can cause any more rapid deterioration of the interspersed tracks compared with plain railway tracks. The results demonstrate the potential sources of structural vibrations that will swiftly degrade the interspersed railway tracks. The insight will help track engineers to plan predictive maintenance and inspection of the interspersed railway tracks in live operational networks.

000021738 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021738 653__ $$ainterspersed track, timber sleeper, concrete sleeper, moving load, envelop analysis, dynamic response, dynamic factor, nonlinear transient analysis, tensionless support.

000021738 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021738 720__ $$aKaewunruen, Sakdirat$$iChamniprasart, Kritditorn$$iLewandrowski, Tomasz
000021738 8560_ $$ffischerc@itam.cas.cz
000021738 8564_ $$s543782$$uhttps://invenio.itam.cas.cz/record/21738/files/17733.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS32] Extreme Dynamics
.
000021738 962__ $$r21500
000021738 980__ $$aPAPER