Analiza dynamiczna belkowych mostów zespolonych na CMK w warunkach zwiĘkszonych prĘdkoŚci pociĄgów (160 + 250) km/h / Dynamic analysis of composite beam bridges along Polish highspeed railway line CMK at conditions of increased train velocities of 160 + 250 km/h
In: Drogi i mosty, 2003, Heft 3, S. 73-93
academicJournal
- print, 14 ref
Zugriff:
Description of modeling of the composite beam bridges of the single-track, single-span, simply-supported type, loaded by moving high speed train is presented in the paper. The analysed 2D model of the bridge - track - moving train system, takes into account a sectorially-prismatic cross-section of the superstructure, deformable transient zones of the track, nonlinear elastic-damping properties of the ballast layer, nonlinear elastic properties of the fasteners, the first- and second-stage suspensions of rail-vehicles. The results of dynamic analysis of the series-of-types of the Polish highspeed railway line CMK composite beam bridges are presented for service velocities of 160-250 km/h and span lengths of the range 14.40+29.40 m. The computations have been performed with the original author's programme, DYRAB2, useful for simulation of vertical vibrations of bridge - track -moving train systems. The dynamic effort of steel plate main girders is assessed from the simplified load capacity condition, taking into account high-cyclic fatigue. Assessment of stability of the track on the bridges is based on the vertical vibration amplitudes of the sleepers.
Titel: |
Analiza dynamiczna belkowych mostów zespolonych na CMK w warunkach zwiĘkszonych prĘdkoŚci pociĄgów (160 + 250) km/h / Dynamic analysis of composite beam bridges along Polish highspeed railway line CMK at conditions of increased train velocities of 160 + 250 km/h
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Autor/in / Beteiligte Person: | KLASZTORNY, Marian |
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Zeitschrift: | Drogi i mosty, 2003, Heft 3, S. 73-93 |
Veröffentlichung: | Warszawa: Instytut Badawczy Dróg i Mostów, 2003 |
Medientyp: | academicJournal |
Umfang: | print, 14 ref |
ISSN: | 1643-1618 (print) |
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