Abstract
Multiple support excitations of elastic multi-span beams are studied. Based on the common set of equations of motion an efficient formulation is developed in order to reduce the degrees of freedom. The resulting equations are formally identical to those that are valid for structures under uniform support excitations. Applying classical modal analysis results in a set of uncoupled differential equations with time-dependent participation factor. A numerical example is given for a two-span railway bridge.
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Heuer, R., Watzl, D. (2017). On Multiple Support Excitation Analysis of Bridges. In: Irschik, H., Belyaev, A., Krommer, M. (eds) Dynamics and Control of Advanced Structures and Machines. Springer, Cham. https://doi.org/10.1007/978-3-319-43080-5_15
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DOI: https://doi.org/10.1007/978-3-319-43080-5_15
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