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Abstract
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| Many research efforts have been spent on the subject of ballast instability due to bridge resonance, since it was first observed when high-speed trains were introduced to the Paris/Lyon rail line. To prevent this phenomenon from occurring, design codes establish a limit value for the vertical deck acceleration. Obviously one needs some sort of numerical model in order to estimate this acceleration level and at that point things get quite complicated. Not only acceleration but also displacement values are of interest e.g. to estimate the impact factor. According to design manuals the structural design should consider the depth of cover, trench width and condition, bedding type, backfill material, and compaction. | |
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International
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Si |
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Congress
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11th International Conference on Vibration Problems |
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960 |
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Place
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Lisbon, Portugal |
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Reviewers
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Si |
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ISBN/ISSN
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978-989-96264-4-7 |
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Start Date
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09/09/2013 |
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End Date
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09/09/2013 |
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From page
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1 |
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To page
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6 |
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Proceedins of the 11th International Conference on Vibration Problems. Z. Dimitrovová et al. (eds.) |