Railway induced vibrations in beam bridges including soil-structure interaction through coupled boundary element-finite element analyses
Abstract eng: In the present contribution the dynamic behaviour of railway bridges, modelled as simplysupported beams, is addressed. In particular, the effect of Soil-Structure Interaction (SSI) on the resonant response of the aforementioned structures in investigated. To this end, a 3D coupled Boundary ElementFinite Element (BEM-FEM) model integrated in the time domain is implemented. First, a set of bridges is defined covering the lengths and frequencies usually associated with high transverse vibration levels. A single soil layer is considered with shear wave velocities in the interval 150–365 m/s. Then a parametric analysis is performed in order to determine the static response of the bridge-soil systems, the fundamental frequency and the maximum response in free vibration left by the passage of a single moving load. From this analysis the influence of soil-structure interaction on cancellation velocities and maximum free vibration amplitudes is investigated in detail.
Contributors:
Publisher:
Taylor and Francis Group, London, UK
Conference Title:
Conference Title:
Sixth International Conference on Structural Engineering, Mechanics and Computation
Conference Venue:
Cape Town, South Africa
Conference Dates:
2016-09-05 / 2016-09-07
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-09-20, last modified 2016-09-20
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