Influence of High-Speed Railway Track Parameters on Dynamic Response of Slab Track and neighboring structures

Content Provider	Semantic Scholar
Author	Packnahad, Reza
Copyright Year	2017
Abstract	The vibration of a double beam system as a slab track considering the soil-structure dynamic interaction has been explored. The slab track system was modeled by two Euler-Bernoulli beams resting on a viscoelastic half-space and the dynamic response of such system to oscillating moving loads has been studied. The equations of motion of viscoelastic half-space is solved taking into account constant displacement and stress field across slab as slab-soil conditions. Employing Fourier transform, the equations can be solved in wave number-frequency domain. To obtain results in time domain inverse Fourier transformation applied and the resultant integrals evaluated using Cauchy's residue theorem. The equations solved for different train speeds and different halfspace stiffness. As a result, the effect of train speed as well as velocity of wave propagation on track vibrations were investigated. To evaluate the vibration level in far field, train induced vibrations compared to FTA (Federal Transit Administration) criteria. Therefore the influence of train, track and soil conditions on vibration level can be predicted. Results suggested that for different cases of distance and soil properties the serviceability parameters such as train axle load and speed should be limited to achieve the FTA criteria.
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Alternate Webpage(s)	http://myweb.fiu.edu/ahame006/wp-content/uploads/sites/395/2017/01/Influence-of-High-Speed-Railway-Track-Parameters-on-Dynamic-Response-of-Slab-Track-and-Neighboring-Structures.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article